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xrandr — how to find the correct RGB full spectrum output command for my system


How to get second display to work alongside primary display?Unable to change the refresh rate to 60hz with xrandrUbuntu 16.04 external monitors black screen “Could not set the configuration for CRTC”Ubuntu 18.04 Monitor not recognizedXubuntu 18.04 does not detect external monitors connected via USB-C hubLaptop running Ubuntu 18.04 and Nvidia GPU does not detect HDMI display






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margin-bottom:0;









4


















I have just hooked up my laptop to an external monitor after a "spillage incident" foobared the built-in display. However, when I connect the monitor via an HDMI cable the colours look extremely washed out. I searched around a bit and found this is probably due to the laptop graphics card not outputting the full RGB spectrum via HDMI by default. I found a solution here:



https://www.kubuntuforums.net/showthread.php?63895-Black-level-too-high-after-upgrade-to-13-10



recommending this command:



xrandr --output HDMI1 --set "Broadcast RGB" "Full"


which doesn't work on my system, since the parameters are not applicable:



output HDMI1 not found; ignoring X Error of failed request: 
BadRROutput (invalid Output parameter) Major opcode of failed
request: 140 (RANDR) Minor opcode of failed request: 15
(RRGetOutputProperty) Serial number of failed request: 28 Current
serial number in output stream: 28


I ran:



xrandr -q


and the output:



[...]
HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 160mm x 90mm
1920x1080 60.00*+ 50.00 59.94 30.00 25.00 24.00 29.97 23.98
1920x1080i 60.00 50.00 59.94
1600x1200 60.00
1680x1050 59.88
1280x1024 75.02 60.02
1440x900 59.90
1280x960 60.00
1280x800 59.91
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.08 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
720x576 50.00
720x480 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
VGA-0 disconnected (normal left inverted right x axis y axis)


provided me with the correct --output parameter, HDMI-0. However, I am unsure how to find a list of parameters and values applicable on my system when using the --set flag, so I can work out what to use in place of "Broadcast RGB" "Full". At the moment the command:



xrandr --output HDMI-0 --set "Broadcast RGB" "Full"


outputs:



X Error of failed request: BadName (named color or font does not exist)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 11 (RRQueryOutputProperty)
Serial number of failed request: 29
Current serial number in output stream: 29


I also ran sudo lshw -c video:



*-display 
description: VGA compatible controller
product: Mullins [Radeon R4/R5 Graphics]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 1
bus info: pci@0000:00:01.0
version: 45
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:35 memory:e0000000-efffffff memory:f0000000-f07fffff ioport:3000(size=256) memory:f0d00000-f0d3ffff memory:f0d80000-f0d9ffff


But could not find anything which seemed immediately useful in the resulting information.



I also ran xrandr --verbose which outputs:



HDMI-0 connected primary 1920x1080+0+0 (0x60) normal (normal left inverted right x axis y axis) 160mm x 90mm
Identifier: 0x52
Timestamp: 36995480
Subpixel: horizontal rgb
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 0
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff004c2d860400000000
06130103801009780aee91a3544c9926
0f5054bfef80714f81408180a9408100
b30095000101023a801871382d40582c
4500a05a0000001e011d00bc52d01e20
b8285540a05a0000001e000000fd0018
4b1a5117000a202020202020000000fc
0053796e634d61737465720a202001a5
020323f14b930405140312101f202122
2309070783010000e2000f67030c0010
00b82d011d80d0721c1620102c2580a0
5a0000009e011d8018711c1620582c25
00a05a0000009e011d007251d01e206e
285500a05a0000001e8c0ad090204031
200c405500a05a000000180000000000
0000000000000000000000000000007a
output_csc: bypass
supported: bypass, tvrgb, ycbcr601, ycbcr709
audio: auto
supported: off, on, auto
scaling mode: None
supported: None, Full, Center, Full aspect
dither: off
supported: off, on
underscan vborder: 0
range: (0, 128)
underscan hborder: 0
range: (0, 128)
underscan: off
supported: off, on, auto
coherent: 1
range: (0, 1)
1920x1080 (0x60) 148.500MHz +HSync +VSync *current +preferred
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
1920x1080 (0x61) 148.500MHz +HSync +VSync
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 56.25KHz
v: height 1080 start 1084 end 1089 total 1125 clock 50.00Hz
1920x1080 (0x62) 148.352MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.43KHz
v: height 1080 start 1084 end 1089 total 1125 clock 59.94Hz
1920x1080i (0x63) 74.250MHz +HSync +VSync Interlace
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.75KHz
v: height 1080 start 1084 end 1094 total 1125 clock 60.00Hz
1920x1080i (0x64) 74.250MHz +HSync +VSync Interlace
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
v: height 1080 start 1084 end 1094 total 1125 clock 50.00Hz
1920x1080 (0x65) 74.250MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.75KHz
v: height 1080 start 1084 end 1089 total 1125 clock 30.00Hz
1920x1080 (0x66) 74.250MHz +HSync +VSync
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
v: height 1080 start 1084 end 1089 total 1125 clock 25.00Hz
1920x1080 (0x67) 74.250MHz +HSync +VSync
h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 27.00KHz
v: height 1080 start 1084 end 1089 total 1125 clock 24.00Hz
1920x1080i (0x68) 74.176MHz +HSync +VSync Interlace
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
v: height 1080 start 1084 end 1094 total 1125 clock 59.94Hz
1920x1080 (0x69) 74.176MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
v: height 1080 start 1084 end 1089 total 1125 clock 29.97Hz
1920x1080 (0x6a) 74.176MHz +HSync +VSync
h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 26.97KHz
v: height 1080 start 1084 end 1089 total 1125 clock 23.98Hz
1600x1200 (0x6b) 162.000MHz +HSync +VSync
h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 75.00KHz
v: height 1200 start 1201 end 1204 total 1250 clock 60.00Hz
1680x1050 (0x6c) 119.000MHz +HSync -VSync
h: width 1680 start 1728 end 1760 total 1840 skew 0 clock 64.67KHz
v: height 1050 start 1053 end 1059 total 1080 clock 59.88Hz
1280x1024 (0x6d) 135.000MHz +HSync +VSync
h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
1280x1024 (0x6e) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1440x900 (0x6f) 88.750MHz +HSync -VSync
h: width 1440 start 1488 end 1520 total 1600 skew 0 clock 55.47KHz
v: height 900 start 903 end 909 total 926 clock 59.90Hz
1280x960 (0x70) 108.000MHz +HSync +VSync
h: width 1280 start 1376 end 1488 total 1800 skew 0 clock 60.00KHz
v: height 960 start 961 end 964 total 1000 clock 60.00Hz
1280x800 (0x71) 71.000MHz +HSync -VSync
h: width 1280 start 1328 end 1360 total 1440 skew 0 clock 49.31KHz
v: height 800 start 803 end 809 total 823 clock 59.91Hz
1152x864 (0x72) 108.000MHz +HSync +VSync
h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
v: height 864 start 865 end 868 total 900 clock 75.00Hz
1280x720 (0x73) 74.250MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.00KHz
v: height 720 start 725 end 730 total 750 clock 60.00Hz
1280x720 (0x74) 74.250MHz +HSync +VSync
h: width 1280 start 1720 end 1760 total 1980 skew 0 clock 37.50KHz
v: height 720 start 725 end 730 total 750 clock 50.00Hz
1280x720 (0x75) 74.176MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 44.96KHz
v: height 720 start 725 end 730 total 750 clock 59.94Hz
1024x768 (0x76) 78.800MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.06KHz
v: height 768 start 769 end 772 total 800 clock 75.08Hz
1024x768 (0x77) 75.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1328 skew 0 clock 56.48KHz
v: height 768 start 771 end 777 total 806 clock 70.07Hz
1024x768 (0x78) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
832x624 (0x79) 57.284MHz -HSync -VSync
h: width 832 start 864 end 928 total 1152 skew 0 clock 49.73KHz
v: height 624 start 625 end 628 total 667 clock 74.55Hz
800x600 (0x7a) 50.000MHz +HSync +VSync
h: width 800 start 856 end 976 total 1040 skew 0 clock 48.08KHz
v: height 600 start 637 end 643 total 666 clock 72.19Hz
800x600 (0x7b) 49.500MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
v: height 600 start 601 end 604 total 625 clock 75.00Hz
800x600 (0x7c) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
800x600 (0x7d) 36.000MHz +HSync +VSync
h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
v: height 600 start 601 end 603 total 625 clock 56.25Hz
720x576 (0x7e) 27.000MHz -HSync -VSync
h: width 720 start 732 end 796 total 864 skew 0 clock 31.25KHz
v: height 576 start 581 end 586 total 625 clock 50.00Hz
720x480 (0x7f) 27.027MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.50KHz
v: height 480 start 489 end 495 total 525 clock 60.00Hz
720x480 (0x80) 27.000MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.47KHz
v: height 480 start 489 end 495 total 525 clock 59.94Hz
640x480 (0x81) 31.500MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
v: height 480 start 481 end 484 total 500 clock 75.00Hz
640x480 (0x82) 31.500MHz -HSync -VSync
h: width 640 start 664 end 704 total 832 skew 0 clock 37.86KHz
v: height 480 start 489 end 491 total 520 clock 72.81Hz
640x480 (0x83) 30.240MHz -HSync -VSync
h: width 640 start 704 end 768 total 864 skew 0 clock 35.00KHz
v: height 480 start 483 end 486 total 525 clock 66.67Hz
640x480 (0x84) 25.200MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.50KHz
v: height 480 start 490 end 492 total 525 clock 60.00Hz
640x480 (0x85) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
720x400 (0x86) 28.320MHz -HSync +VSync
h: width 720 start 738 end 846 total 900 skew 0 clock 31.47KHz
v: height 400 start 412 end 414 total 449 clock 70.08Hz
VGA-0 disconnected (normal left inverted right x axis y axis)
Identifier: 0x53
Timestamp: 36995480
Subpixel: no subpixels
Clones:
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
output_csc: bypass
supported: bypass, tvrgb, ycbcr601, ycbcr709
scaling mode: None
supported: None, Full, Center, Full aspect
load detection: 1
range: (0, 1)


For the relevant monitor/connection.



If this were not possible with xrandr I would also be willing to accept any answer telling me how to retrieve data from and manipulate output of RandR/X11 via a different method.










share|improve this question

































    4


















    I have just hooked up my laptop to an external monitor after a "spillage incident" foobared the built-in display. However, when I connect the monitor via an HDMI cable the colours look extremely washed out. I searched around a bit and found this is probably due to the laptop graphics card not outputting the full RGB spectrum via HDMI by default. I found a solution here:



    https://www.kubuntuforums.net/showthread.php?63895-Black-level-too-high-after-upgrade-to-13-10



    recommending this command:



    xrandr --output HDMI1 --set "Broadcast RGB" "Full"


    which doesn't work on my system, since the parameters are not applicable:



    output HDMI1 not found; ignoring X Error of failed request: 
    BadRROutput (invalid Output parameter) Major opcode of failed
    request: 140 (RANDR) Minor opcode of failed request: 15
    (RRGetOutputProperty) Serial number of failed request: 28 Current
    serial number in output stream: 28


    I ran:



    xrandr -q


    and the output:



    [...]
    HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 160mm x 90mm
    1920x1080 60.00*+ 50.00 59.94 30.00 25.00 24.00 29.97 23.98
    1920x1080i 60.00 50.00 59.94
    1600x1200 60.00
    1680x1050 59.88
    1280x1024 75.02 60.02
    1440x900 59.90
    1280x960 60.00
    1280x800 59.91
    1152x864 75.00
    1280x720 60.00 50.00 59.94
    1024x768 75.08 70.07 60.00
    832x624 74.55
    800x600 72.19 75.00 60.32 56.25
    720x576 50.00
    720x480 60.00 59.94
    640x480 75.00 72.81 66.67 60.00 59.94
    720x400 70.08
    VGA-0 disconnected (normal left inverted right x axis y axis)


    provided me with the correct --output parameter, HDMI-0. However, I am unsure how to find a list of parameters and values applicable on my system when using the --set flag, so I can work out what to use in place of "Broadcast RGB" "Full". At the moment the command:



    xrandr --output HDMI-0 --set "Broadcast RGB" "Full"


    outputs:



    X Error of failed request: BadName (named color or font does not exist)
    Major opcode of failed request: 140 (RANDR)
    Minor opcode of failed request: 11 (RRQueryOutputProperty)
    Serial number of failed request: 29
    Current serial number in output stream: 29


    I also ran sudo lshw -c video:



    *-display 
    description: VGA compatible controller
    product: Mullins [Radeon R4/R5 Graphics]
    vendor: Advanced Micro Devices, Inc. [AMD/ATI]
    physical id: 1
    bus info: pci@0000:00:01.0
    version: 45
    width: 64 bits
    clock: 33MHz
    capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
    configuration: driver=radeon latency=0
    resources: irq:35 memory:e0000000-efffffff memory:f0000000-f07fffff ioport:3000(size=256) memory:f0d00000-f0d3ffff memory:f0d80000-f0d9ffff


    But could not find anything which seemed immediately useful in the resulting information.



    I also ran xrandr --verbose which outputs:



    HDMI-0 connected primary 1920x1080+0+0 (0x60) normal (normal left inverted right x axis y axis) 160mm x 90mm
    Identifier: 0x52
    Timestamp: 36995480
    Subpixel: horizontal rgb
    Gamma: 1.0:1.0:1.0
    Brightness: 1.0
    Clones:
    CRTC: 0
    CRTCs: 0 1
    Transform: 1.000000 0.000000 0.000000
    0.000000 1.000000 0.000000
    0.000000 0.000000 1.000000
    filter:
    EDID:
    00ffffffffffff004c2d860400000000
    06130103801009780aee91a3544c9926
    0f5054bfef80714f81408180a9408100
    b30095000101023a801871382d40582c
    4500a05a0000001e011d00bc52d01e20
    b8285540a05a0000001e000000fd0018
    4b1a5117000a202020202020000000fc
    0053796e634d61737465720a202001a5
    020323f14b930405140312101f202122
    2309070783010000e2000f67030c0010
    00b82d011d80d0721c1620102c2580a0
    5a0000009e011d8018711c1620582c25
    00a05a0000009e011d007251d01e206e
    285500a05a0000001e8c0ad090204031
    200c405500a05a000000180000000000
    0000000000000000000000000000007a
    output_csc: bypass
    supported: bypass, tvrgb, ycbcr601, ycbcr709
    audio: auto
    supported: off, on, auto
    scaling mode: None
    supported: None, Full, Center, Full aspect
    dither: off
    supported: off, on
    underscan vborder: 0
    range: (0, 128)
    underscan hborder: 0
    range: (0, 128)
    underscan: off
    supported: off, on, auto
    coherent: 1
    range: (0, 1)
    1920x1080 (0x60) 148.500MHz +HSync +VSync *current +preferred
    h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
    v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
    1920x1080 (0x61) 148.500MHz +HSync +VSync
    h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 56.25KHz
    v: height 1080 start 1084 end 1089 total 1125 clock 50.00Hz
    1920x1080 (0x62) 148.352MHz +HSync +VSync
    h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.43KHz
    v: height 1080 start 1084 end 1089 total 1125 clock 59.94Hz
    1920x1080i (0x63) 74.250MHz +HSync +VSync Interlace
    h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.75KHz
    v: height 1080 start 1084 end 1094 total 1125 clock 60.00Hz
    1920x1080i (0x64) 74.250MHz +HSync +VSync Interlace
    h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
    v: height 1080 start 1084 end 1094 total 1125 clock 50.00Hz
    1920x1080 (0x65) 74.250MHz +HSync +VSync
    h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.75KHz
    v: height 1080 start 1084 end 1089 total 1125 clock 30.00Hz
    1920x1080 (0x66) 74.250MHz +HSync +VSync
    h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
    v: height 1080 start 1084 end 1089 total 1125 clock 25.00Hz
    1920x1080 (0x67) 74.250MHz +HSync +VSync
    h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 27.00KHz
    v: height 1080 start 1084 end 1089 total 1125 clock 24.00Hz
    1920x1080i (0x68) 74.176MHz +HSync +VSync Interlace
    h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
    v: height 1080 start 1084 end 1094 total 1125 clock 59.94Hz
    1920x1080 (0x69) 74.176MHz +HSync +VSync
    h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
    v: height 1080 start 1084 end 1089 total 1125 clock 29.97Hz
    1920x1080 (0x6a) 74.176MHz +HSync +VSync
    h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 26.97KHz
    v: height 1080 start 1084 end 1089 total 1125 clock 23.98Hz
    1600x1200 (0x6b) 162.000MHz +HSync +VSync
    h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 75.00KHz
    v: height 1200 start 1201 end 1204 total 1250 clock 60.00Hz
    1680x1050 (0x6c) 119.000MHz +HSync -VSync
    h: width 1680 start 1728 end 1760 total 1840 skew 0 clock 64.67KHz
    v: height 1050 start 1053 end 1059 total 1080 clock 59.88Hz
    1280x1024 (0x6d) 135.000MHz +HSync +VSync
    h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
    v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
    1280x1024 (0x6e) 108.000MHz +HSync +VSync
    h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
    v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
    1440x900 (0x6f) 88.750MHz +HSync -VSync
    h: width 1440 start 1488 end 1520 total 1600 skew 0 clock 55.47KHz
    v: height 900 start 903 end 909 total 926 clock 59.90Hz
    1280x960 (0x70) 108.000MHz +HSync +VSync
    h: width 1280 start 1376 end 1488 total 1800 skew 0 clock 60.00KHz
    v: height 960 start 961 end 964 total 1000 clock 60.00Hz
    1280x800 (0x71) 71.000MHz +HSync -VSync
    h: width 1280 start 1328 end 1360 total 1440 skew 0 clock 49.31KHz
    v: height 800 start 803 end 809 total 823 clock 59.91Hz
    1152x864 (0x72) 108.000MHz +HSync +VSync
    h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
    v: height 864 start 865 end 868 total 900 clock 75.00Hz
    1280x720 (0x73) 74.250MHz +HSync +VSync
    h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.00KHz
    v: height 720 start 725 end 730 total 750 clock 60.00Hz
    1280x720 (0x74) 74.250MHz +HSync +VSync
    h: width 1280 start 1720 end 1760 total 1980 skew 0 clock 37.50KHz
    v: height 720 start 725 end 730 total 750 clock 50.00Hz
    1280x720 (0x75) 74.176MHz +HSync +VSync
    h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 44.96KHz
    v: height 720 start 725 end 730 total 750 clock 59.94Hz
    1024x768 (0x76) 78.800MHz +HSync +VSync
    h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.06KHz
    v: height 768 start 769 end 772 total 800 clock 75.08Hz
    1024x768 (0x77) 75.000MHz -HSync -VSync
    h: width 1024 start 1048 end 1184 total 1328 skew 0 clock 56.48KHz
    v: height 768 start 771 end 777 total 806 clock 70.07Hz
    1024x768 (0x78) 65.000MHz -HSync -VSync
    h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
    v: height 768 start 771 end 777 total 806 clock 60.00Hz
    832x624 (0x79) 57.284MHz -HSync -VSync
    h: width 832 start 864 end 928 total 1152 skew 0 clock 49.73KHz
    v: height 624 start 625 end 628 total 667 clock 74.55Hz
    800x600 (0x7a) 50.000MHz +HSync +VSync
    h: width 800 start 856 end 976 total 1040 skew 0 clock 48.08KHz
    v: height 600 start 637 end 643 total 666 clock 72.19Hz
    800x600 (0x7b) 49.500MHz +HSync +VSync
    h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
    v: height 600 start 601 end 604 total 625 clock 75.00Hz
    800x600 (0x7c) 40.000MHz +HSync +VSync
    h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
    v: height 600 start 601 end 605 total 628 clock 60.32Hz
    800x600 (0x7d) 36.000MHz +HSync +VSync
    h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
    v: height 600 start 601 end 603 total 625 clock 56.25Hz
    720x576 (0x7e) 27.000MHz -HSync -VSync
    h: width 720 start 732 end 796 total 864 skew 0 clock 31.25KHz
    v: height 576 start 581 end 586 total 625 clock 50.00Hz
    720x480 (0x7f) 27.027MHz -HSync -VSync
    h: width 720 start 736 end 798 total 858 skew 0 clock 31.50KHz
    v: height 480 start 489 end 495 total 525 clock 60.00Hz
    720x480 (0x80) 27.000MHz -HSync -VSync
    h: width 720 start 736 end 798 total 858 skew 0 clock 31.47KHz
    v: height 480 start 489 end 495 total 525 clock 59.94Hz
    640x480 (0x81) 31.500MHz -HSync -VSync
    h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
    v: height 480 start 481 end 484 total 500 clock 75.00Hz
    640x480 (0x82) 31.500MHz -HSync -VSync
    h: width 640 start 664 end 704 total 832 skew 0 clock 37.86KHz
    v: height 480 start 489 end 491 total 520 clock 72.81Hz
    640x480 (0x83) 30.240MHz -HSync -VSync
    h: width 640 start 704 end 768 total 864 skew 0 clock 35.00KHz
    v: height 480 start 483 end 486 total 525 clock 66.67Hz
    640x480 (0x84) 25.200MHz -HSync -VSync
    h: width 640 start 656 end 752 total 800 skew 0 clock 31.50KHz
    v: height 480 start 490 end 492 total 525 clock 60.00Hz
    640x480 (0x85) 25.175MHz -HSync -VSync
    h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
    v: height 480 start 490 end 492 total 525 clock 59.94Hz
    720x400 (0x86) 28.320MHz -HSync +VSync
    h: width 720 start 738 end 846 total 900 skew 0 clock 31.47KHz
    v: height 400 start 412 end 414 total 449 clock 70.08Hz
    VGA-0 disconnected (normal left inverted right x axis y axis)
    Identifier: 0x53
    Timestamp: 36995480
    Subpixel: no subpixels
    Clones:
    CRTCs: 0 1
    Transform: 1.000000 0.000000 0.000000
    0.000000 1.000000 0.000000
    0.000000 0.000000 1.000000
    filter:
    output_csc: bypass
    supported: bypass, tvrgb, ycbcr601, ycbcr709
    scaling mode: None
    supported: None, Full, Center, Full aspect
    load detection: 1
    range: (0, 1)


    For the relevant monitor/connection.



    If this were not possible with xrandr I would also be willing to accept any answer telling me how to retrieve data from and manipulate output of RandR/X11 via a different method.










    share|improve this question





























      4













      4









      4








      I have just hooked up my laptop to an external monitor after a "spillage incident" foobared the built-in display. However, when I connect the monitor via an HDMI cable the colours look extremely washed out. I searched around a bit and found this is probably due to the laptop graphics card not outputting the full RGB spectrum via HDMI by default. I found a solution here:



      https://www.kubuntuforums.net/showthread.php?63895-Black-level-too-high-after-upgrade-to-13-10



      recommending this command:



      xrandr --output HDMI1 --set "Broadcast RGB" "Full"


      which doesn't work on my system, since the parameters are not applicable:



      output HDMI1 not found; ignoring X Error of failed request: 
      BadRROutput (invalid Output parameter) Major opcode of failed
      request: 140 (RANDR) Minor opcode of failed request: 15
      (RRGetOutputProperty) Serial number of failed request: 28 Current
      serial number in output stream: 28


      I ran:



      xrandr -q


      and the output:



      [...]
      HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 160mm x 90mm
      1920x1080 60.00*+ 50.00 59.94 30.00 25.00 24.00 29.97 23.98
      1920x1080i 60.00 50.00 59.94
      1600x1200 60.00
      1680x1050 59.88
      1280x1024 75.02 60.02
      1440x900 59.90
      1280x960 60.00
      1280x800 59.91
      1152x864 75.00
      1280x720 60.00 50.00 59.94
      1024x768 75.08 70.07 60.00
      832x624 74.55
      800x600 72.19 75.00 60.32 56.25
      720x576 50.00
      720x480 60.00 59.94
      640x480 75.00 72.81 66.67 60.00 59.94
      720x400 70.08
      VGA-0 disconnected (normal left inverted right x axis y axis)


      provided me with the correct --output parameter, HDMI-0. However, I am unsure how to find a list of parameters and values applicable on my system when using the --set flag, so I can work out what to use in place of "Broadcast RGB" "Full". At the moment the command:



      xrandr --output HDMI-0 --set "Broadcast RGB" "Full"


      outputs:



      X Error of failed request: BadName (named color or font does not exist)
      Major opcode of failed request: 140 (RANDR)
      Minor opcode of failed request: 11 (RRQueryOutputProperty)
      Serial number of failed request: 29
      Current serial number in output stream: 29


      I also ran sudo lshw -c video:



      *-display 
      description: VGA compatible controller
      product: Mullins [Radeon R4/R5 Graphics]
      vendor: Advanced Micro Devices, Inc. [AMD/ATI]
      physical id: 1
      bus info: pci@0000:00:01.0
      version: 45
      width: 64 bits
      clock: 33MHz
      capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
      configuration: driver=radeon latency=0
      resources: irq:35 memory:e0000000-efffffff memory:f0000000-f07fffff ioport:3000(size=256) memory:f0d00000-f0d3ffff memory:f0d80000-f0d9ffff


      But could not find anything which seemed immediately useful in the resulting information.



      I also ran xrandr --verbose which outputs:



      HDMI-0 connected primary 1920x1080+0+0 (0x60) normal (normal left inverted right x axis y axis) 160mm x 90mm
      Identifier: 0x52
      Timestamp: 36995480
      Subpixel: horizontal rgb
      Gamma: 1.0:1.0:1.0
      Brightness: 1.0
      Clones:
      CRTC: 0
      CRTCs: 0 1
      Transform: 1.000000 0.000000 0.000000
      0.000000 1.000000 0.000000
      0.000000 0.000000 1.000000
      filter:
      EDID:
      00ffffffffffff004c2d860400000000
      06130103801009780aee91a3544c9926
      0f5054bfef80714f81408180a9408100
      b30095000101023a801871382d40582c
      4500a05a0000001e011d00bc52d01e20
      b8285540a05a0000001e000000fd0018
      4b1a5117000a202020202020000000fc
      0053796e634d61737465720a202001a5
      020323f14b930405140312101f202122
      2309070783010000e2000f67030c0010
      00b82d011d80d0721c1620102c2580a0
      5a0000009e011d8018711c1620582c25
      00a05a0000009e011d007251d01e206e
      285500a05a0000001e8c0ad090204031
      200c405500a05a000000180000000000
      0000000000000000000000000000007a
      output_csc: bypass
      supported: bypass, tvrgb, ycbcr601, ycbcr709
      audio: auto
      supported: off, on, auto
      scaling mode: None
      supported: None, Full, Center, Full aspect
      dither: off
      supported: off, on
      underscan vborder: 0
      range: (0, 128)
      underscan hborder: 0
      range: (0, 128)
      underscan: off
      supported: off, on, auto
      coherent: 1
      range: (0, 1)
      1920x1080 (0x60) 148.500MHz +HSync +VSync *current +preferred
      h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
      1920x1080 (0x61) 148.500MHz +HSync +VSync
      h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 56.25KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 50.00Hz
      1920x1080 (0x62) 148.352MHz +HSync +VSync
      h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.43KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 59.94Hz
      1920x1080i (0x63) 74.250MHz +HSync +VSync Interlace
      h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.75KHz
      v: height 1080 start 1084 end 1094 total 1125 clock 60.00Hz
      1920x1080i (0x64) 74.250MHz +HSync +VSync Interlace
      h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
      v: height 1080 start 1084 end 1094 total 1125 clock 50.00Hz
      1920x1080 (0x65) 74.250MHz +HSync +VSync
      h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.75KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 30.00Hz
      1920x1080 (0x66) 74.250MHz +HSync +VSync
      h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 25.00Hz
      1920x1080 (0x67) 74.250MHz +HSync +VSync
      h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 27.00KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 24.00Hz
      1920x1080i (0x68) 74.176MHz +HSync +VSync Interlace
      h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
      v: height 1080 start 1084 end 1094 total 1125 clock 59.94Hz
      1920x1080 (0x69) 74.176MHz +HSync +VSync
      h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 29.97Hz
      1920x1080 (0x6a) 74.176MHz +HSync +VSync
      h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 26.97KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 23.98Hz
      1600x1200 (0x6b) 162.000MHz +HSync +VSync
      h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 75.00KHz
      v: height 1200 start 1201 end 1204 total 1250 clock 60.00Hz
      1680x1050 (0x6c) 119.000MHz +HSync -VSync
      h: width 1680 start 1728 end 1760 total 1840 skew 0 clock 64.67KHz
      v: height 1050 start 1053 end 1059 total 1080 clock 59.88Hz
      1280x1024 (0x6d) 135.000MHz +HSync +VSync
      h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
      v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
      1280x1024 (0x6e) 108.000MHz +HSync +VSync
      h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
      v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
      1440x900 (0x6f) 88.750MHz +HSync -VSync
      h: width 1440 start 1488 end 1520 total 1600 skew 0 clock 55.47KHz
      v: height 900 start 903 end 909 total 926 clock 59.90Hz
      1280x960 (0x70) 108.000MHz +HSync +VSync
      h: width 1280 start 1376 end 1488 total 1800 skew 0 clock 60.00KHz
      v: height 960 start 961 end 964 total 1000 clock 60.00Hz
      1280x800 (0x71) 71.000MHz +HSync -VSync
      h: width 1280 start 1328 end 1360 total 1440 skew 0 clock 49.31KHz
      v: height 800 start 803 end 809 total 823 clock 59.91Hz
      1152x864 (0x72) 108.000MHz +HSync +VSync
      h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
      v: height 864 start 865 end 868 total 900 clock 75.00Hz
      1280x720 (0x73) 74.250MHz +HSync +VSync
      h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.00KHz
      v: height 720 start 725 end 730 total 750 clock 60.00Hz
      1280x720 (0x74) 74.250MHz +HSync +VSync
      h: width 1280 start 1720 end 1760 total 1980 skew 0 clock 37.50KHz
      v: height 720 start 725 end 730 total 750 clock 50.00Hz
      1280x720 (0x75) 74.176MHz +HSync +VSync
      h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 44.96KHz
      v: height 720 start 725 end 730 total 750 clock 59.94Hz
      1024x768 (0x76) 78.800MHz +HSync +VSync
      h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.06KHz
      v: height 768 start 769 end 772 total 800 clock 75.08Hz
      1024x768 (0x77) 75.000MHz -HSync -VSync
      h: width 1024 start 1048 end 1184 total 1328 skew 0 clock 56.48KHz
      v: height 768 start 771 end 777 total 806 clock 70.07Hz
      1024x768 (0x78) 65.000MHz -HSync -VSync
      h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
      v: height 768 start 771 end 777 total 806 clock 60.00Hz
      832x624 (0x79) 57.284MHz -HSync -VSync
      h: width 832 start 864 end 928 total 1152 skew 0 clock 49.73KHz
      v: height 624 start 625 end 628 total 667 clock 74.55Hz
      800x600 (0x7a) 50.000MHz +HSync +VSync
      h: width 800 start 856 end 976 total 1040 skew 0 clock 48.08KHz
      v: height 600 start 637 end 643 total 666 clock 72.19Hz
      800x600 (0x7b) 49.500MHz +HSync +VSync
      h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
      v: height 600 start 601 end 604 total 625 clock 75.00Hz
      800x600 (0x7c) 40.000MHz +HSync +VSync
      h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
      v: height 600 start 601 end 605 total 628 clock 60.32Hz
      800x600 (0x7d) 36.000MHz +HSync +VSync
      h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
      v: height 600 start 601 end 603 total 625 clock 56.25Hz
      720x576 (0x7e) 27.000MHz -HSync -VSync
      h: width 720 start 732 end 796 total 864 skew 0 clock 31.25KHz
      v: height 576 start 581 end 586 total 625 clock 50.00Hz
      720x480 (0x7f) 27.027MHz -HSync -VSync
      h: width 720 start 736 end 798 total 858 skew 0 clock 31.50KHz
      v: height 480 start 489 end 495 total 525 clock 60.00Hz
      720x480 (0x80) 27.000MHz -HSync -VSync
      h: width 720 start 736 end 798 total 858 skew 0 clock 31.47KHz
      v: height 480 start 489 end 495 total 525 clock 59.94Hz
      640x480 (0x81) 31.500MHz -HSync -VSync
      h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
      v: height 480 start 481 end 484 total 500 clock 75.00Hz
      640x480 (0x82) 31.500MHz -HSync -VSync
      h: width 640 start 664 end 704 total 832 skew 0 clock 37.86KHz
      v: height 480 start 489 end 491 total 520 clock 72.81Hz
      640x480 (0x83) 30.240MHz -HSync -VSync
      h: width 640 start 704 end 768 total 864 skew 0 clock 35.00KHz
      v: height 480 start 483 end 486 total 525 clock 66.67Hz
      640x480 (0x84) 25.200MHz -HSync -VSync
      h: width 640 start 656 end 752 total 800 skew 0 clock 31.50KHz
      v: height 480 start 490 end 492 total 525 clock 60.00Hz
      640x480 (0x85) 25.175MHz -HSync -VSync
      h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
      v: height 480 start 490 end 492 total 525 clock 59.94Hz
      720x400 (0x86) 28.320MHz -HSync +VSync
      h: width 720 start 738 end 846 total 900 skew 0 clock 31.47KHz
      v: height 400 start 412 end 414 total 449 clock 70.08Hz
      VGA-0 disconnected (normal left inverted right x axis y axis)
      Identifier: 0x53
      Timestamp: 36995480
      Subpixel: no subpixels
      Clones:
      CRTCs: 0 1
      Transform: 1.000000 0.000000 0.000000
      0.000000 1.000000 0.000000
      0.000000 0.000000 1.000000
      filter:
      output_csc: bypass
      supported: bypass, tvrgb, ycbcr601, ycbcr709
      scaling mode: None
      supported: None, Full, Center, Full aspect
      load detection: 1
      range: (0, 1)


      For the relevant monitor/connection.



      If this were not possible with xrandr I would also be willing to accept any answer telling me how to retrieve data from and manipulate output of RandR/X11 via a different method.










      share|improve this question
















      I have just hooked up my laptop to an external monitor after a "spillage incident" foobared the built-in display. However, when I connect the monitor via an HDMI cable the colours look extremely washed out. I searched around a bit and found this is probably due to the laptop graphics card not outputting the full RGB spectrum via HDMI by default. I found a solution here:



      https://www.kubuntuforums.net/showthread.php?63895-Black-level-too-high-after-upgrade-to-13-10



      recommending this command:



      xrandr --output HDMI1 --set "Broadcast RGB" "Full"


      which doesn't work on my system, since the parameters are not applicable:



      output HDMI1 not found; ignoring X Error of failed request: 
      BadRROutput (invalid Output parameter) Major opcode of failed
      request: 140 (RANDR) Minor opcode of failed request: 15
      (RRGetOutputProperty) Serial number of failed request: 28 Current
      serial number in output stream: 28


      I ran:



      xrandr -q


      and the output:



      [...]
      HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 160mm x 90mm
      1920x1080 60.00*+ 50.00 59.94 30.00 25.00 24.00 29.97 23.98
      1920x1080i 60.00 50.00 59.94
      1600x1200 60.00
      1680x1050 59.88
      1280x1024 75.02 60.02
      1440x900 59.90
      1280x960 60.00
      1280x800 59.91
      1152x864 75.00
      1280x720 60.00 50.00 59.94
      1024x768 75.08 70.07 60.00
      832x624 74.55
      800x600 72.19 75.00 60.32 56.25
      720x576 50.00
      720x480 60.00 59.94
      640x480 75.00 72.81 66.67 60.00 59.94
      720x400 70.08
      VGA-0 disconnected (normal left inverted right x axis y axis)


      provided me with the correct --output parameter, HDMI-0. However, I am unsure how to find a list of parameters and values applicable on my system when using the --set flag, so I can work out what to use in place of "Broadcast RGB" "Full". At the moment the command:



      xrandr --output HDMI-0 --set "Broadcast RGB" "Full"


      outputs:



      X Error of failed request: BadName (named color or font does not exist)
      Major opcode of failed request: 140 (RANDR)
      Minor opcode of failed request: 11 (RRQueryOutputProperty)
      Serial number of failed request: 29
      Current serial number in output stream: 29


      I also ran sudo lshw -c video:



      *-display 
      description: VGA compatible controller
      product: Mullins [Radeon R4/R5 Graphics]
      vendor: Advanced Micro Devices, Inc. [AMD/ATI]
      physical id: 1
      bus info: pci@0000:00:01.0
      version: 45
      width: 64 bits
      clock: 33MHz
      capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
      configuration: driver=radeon latency=0
      resources: irq:35 memory:e0000000-efffffff memory:f0000000-f07fffff ioport:3000(size=256) memory:f0d00000-f0d3ffff memory:f0d80000-f0d9ffff


      But could not find anything which seemed immediately useful in the resulting information.



      I also ran xrandr --verbose which outputs:



      HDMI-0 connected primary 1920x1080+0+0 (0x60) normal (normal left inverted right x axis y axis) 160mm x 90mm
      Identifier: 0x52
      Timestamp: 36995480
      Subpixel: horizontal rgb
      Gamma: 1.0:1.0:1.0
      Brightness: 1.0
      Clones:
      CRTC: 0
      CRTCs: 0 1
      Transform: 1.000000 0.000000 0.000000
      0.000000 1.000000 0.000000
      0.000000 0.000000 1.000000
      filter:
      EDID:
      00ffffffffffff004c2d860400000000
      06130103801009780aee91a3544c9926
      0f5054bfef80714f81408180a9408100
      b30095000101023a801871382d40582c
      4500a05a0000001e011d00bc52d01e20
      b8285540a05a0000001e000000fd0018
      4b1a5117000a202020202020000000fc
      0053796e634d61737465720a202001a5
      020323f14b930405140312101f202122
      2309070783010000e2000f67030c0010
      00b82d011d80d0721c1620102c2580a0
      5a0000009e011d8018711c1620582c25
      00a05a0000009e011d007251d01e206e
      285500a05a0000001e8c0ad090204031
      200c405500a05a000000180000000000
      0000000000000000000000000000007a
      output_csc: bypass
      supported: bypass, tvrgb, ycbcr601, ycbcr709
      audio: auto
      supported: off, on, auto
      scaling mode: None
      supported: None, Full, Center, Full aspect
      dither: off
      supported: off, on
      underscan vborder: 0
      range: (0, 128)
      underscan hborder: 0
      range: (0, 128)
      underscan: off
      supported: off, on, auto
      coherent: 1
      range: (0, 1)
      1920x1080 (0x60) 148.500MHz +HSync +VSync *current +preferred
      h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
      1920x1080 (0x61) 148.500MHz +HSync +VSync
      h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 56.25KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 50.00Hz
      1920x1080 (0x62) 148.352MHz +HSync +VSync
      h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.43KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 59.94Hz
      1920x1080i (0x63) 74.250MHz +HSync +VSync Interlace
      h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.75KHz
      v: height 1080 start 1084 end 1094 total 1125 clock 60.00Hz
      1920x1080i (0x64) 74.250MHz +HSync +VSync Interlace
      h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
      v: height 1080 start 1084 end 1094 total 1125 clock 50.00Hz
      1920x1080 (0x65) 74.250MHz +HSync +VSync
      h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.75KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 30.00Hz
      1920x1080 (0x66) 74.250MHz +HSync +VSync
      h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 25.00Hz
      1920x1080 (0x67) 74.250MHz +HSync +VSync
      h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 27.00KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 24.00Hz
      1920x1080i (0x68) 74.176MHz +HSync +VSync Interlace
      h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
      v: height 1080 start 1084 end 1094 total 1125 clock 59.94Hz
      1920x1080 (0x69) 74.176MHz +HSync +VSync
      h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 29.97Hz
      1920x1080 (0x6a) 74.176MHz +HSync +VSync
      h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 26.97KHz
      v: height 1080 start 1084 end 1089 total 1125 clock 23.98Hz
      1600x1200 (0x6b) 162.000MHz +HSync +VSync
      h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 75.00KHz
      v: height 1200 start 1201 end 1204 total 1250 clock 60.00Hz
      1680x1050 (0x6c) 119.000MHz +HSync -VSync
      h: width 1680 start 1728 end 1760 total 1840 skew 0 clock 64.67KHz
      v: height 1050 start 1053 end 1059 total 1080 clock 59.88Hz
      1280x1024 (0x6d) 135.000MHz +HSync +VSync
      h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
      v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
      1280x1024 (0x6e) 108.000MHz +HSync +VSync
      h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
      v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
      1440x900 (0x6f) 88.750MHz +HSync -VSync
      h: width 1440 start 1488 end 1520 total 1600 skew 0 clock 55.47KHz
      v: height 900 start 903 end 909 total 926 clock 59.90Hz
      1280x960 (0x70) 108.000MHz +HSync +VSync
      h: width 1280 start 1376 end 1488 total 1800 skew 0 clock 60.00KHz
      v: height 960 start 961 end 964 total 1000 clock 60.00Hz
      1280x800 (0x71) 71.000MHz +HSync -VSync
      h: width 1280 start 1328 end 1360 total 1440 skew 0 clock 49.31KHz
      v: height 800 start 803 end 809 total 823 clock 59.91Hz
      1152x864 (0x72) 108.000MHz +HSync +VSync
      h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
      v: height 864 start 865 end 868 total 900 clock 75.00Hz
      1280x720 (0x73) 74.250MHz +HSync +VSync
      h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.00KHz
      v: height 720 start 725 end 730 total 750 clock 60.00Hz
      1280x720 (0x74) 74.250MHz +HSync +VSync
      h: width 1280 start 1720 end 1760 total 1980 skew 0 clock 37.50KHz
      v: height 720 start 725 end 730 total 750 clock 50.00Hz
      1280x720 (0x75) 74.176MHz +HSync +VSync
      h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 44.96KHz
      v: height 720 start 725 end 730 total 750 clock 59.94Hz
      1024x768 (0x76) 78.800MHz +HSync +VSync
      h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.06KHz
      v: height 768 start 769 end 772 total 800 clock 75.08Hz
      1024x768 (0x77) 75.000MHz -HSync -VSync
      h: width 1024 start 1048 end 1184 total 1328 skew 0 clock 56.48KHz
      v: height 768 start 771 end 777 total 806 clock 70.07Hz
      1024x768 (0x78) 65.000MHz -HSync -VSync
      h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
      v: height 768 start 771 end 777 total 806 clock 60.00Hz
      832x624 (0x79) 57.284MHz -HSync -VSync
      h: width 832 start 864 end 928 total 1152 skew 0 clock 49.73KHz
      v: height 624 start 625 end 628 total 667 clock 74.55Hz
      800x600 (0x7a) 50.000MHz +HSync +VSync
      h: width 800 start 856 end 976 total 1040 skew 0 clock 48.08KHz
      v: height 600 start 637 end 643 total 666 clock 72.19Hz
      800x600 (0x7b) 49.500MHz +HSync +VSync
      h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
      v: height 600 start 601 end 604 total 625 clock 75.00Hz
      800x600 (0x7c) 40.000MHz +HSync +VSync
      h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
      v: height 600 start 601 end 605 total 628 clock 60.32Hz
      800x600 (0x7d) 36.000MHz +HSync +VSync
      h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
      v: height 600 start 601 end 603 total 625 clock 56.25Hz
      720x576 (0x7e) 27.000MHz -HSync -VSync
      h: width 720 start 732 end 796 total 864 skew 0 clock 31.25KHz
      v: height 576 start 581 end 586 total 625 clock 50.00Hz
      720x480 (0x7f) 27.027MHz -HSync -VSync
      h: width 720 start 736 end 798 total 858 skew 0 clock 31.50KHz
      v: height 480 start 489 end 495 total 525 clock 60.00Hz
      720x480 (0x80) 27.000MHz -HSync -VSync
      h: width 720 start 736 end 798 total 858 skew 0 clock 31.47KHz
      v: height 480 start 489 end 495 total 525 clock 59.94Hz
      640x480 (0x81) 31.500MHz -HSync -VSync
      h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
      v: height 480 start 481 end 484 total 500 clock 75.00Hz
      640x480 (0x82) 31.500MHz -HSync -VSync
      h: width 640 start 664 end 704 total 832 skew 0 clock 37.86KHz
      v: height 480 start 489 end 491 total 520 clock 72.81Hz
      640x480 (0x83) 30.240MHz -HSync -VSync
      h: width 640 start 704 end 768 total 864 skew 0 clock 35.00KHz
      v: height 480 start 483 end 486 total 525 clock 66.67Hz
      640x480 (0x84) 25.200MHz -HSync -VSync
      h: width 640 start 656 end 752 total 800 skew 0 clock 31.50KHz
      v: height 480 start 490 end 492 total 525 clock 60.00Hz
      640x480 (0x85) 25.175MHz -HSync -VSync
      h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
      v: height 480 start 490 end 492 total 525 clock 59.94Hz
      720x400 (0x86) 28.320MHz -HSync +VSync
      h: width 720 start 738 end 846 total 900 skew 0 clock 31.47KHz
      v: height 400 start 412 end 414 total 449 clock 70.08Hz
      VGA-0 disconnected (normal left inverted right x axis y axis)
      Identifier: 0x53
      Timestamp: 36995480
      Subpixel: no subpixels
      Clones:
      CRTCs: 0 1
      Transform: 1.000000 0.000000 0.000000
      0.000000 1.000000 0.000000
      0.000000 0.000000 1.000000
      filter:
      output_csc: bypass
      supported: bypass, tvrgb, ycbcr601, ycbcr709
      scaling mode: None
      supported: None, Full, Center, Full aspect
      load detection: 1
      range: (0, 1)


      For the relevant monitor/connection.



      If this were not possible with xrandr I would also be willing to accept any answer telling me how to retrieve data from and manipulate output of RandR/X11 via a different method.







      16.04 display hdmi amd-graphics xrandr






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Oct 2 at 7:40









      Ethan T

      1557 bronze badges




      1557 bronze badges










      asked Feb 16 '17 at 12:19









      Just In Time BerlakeJust In Time Berlake

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          2 Answers
          2






          active

          oldest

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          3



















          The Broadcast RGB property is for Intel graphics cards. output_csc appears to be the AMD variant of the same thing.



          output_csc is set to bypass in what you posted, which should be equivalent to the Full range (0-255).



          You can try setting output_csc to other valid options, notably tvrgb (16-235).



          xrandr --output HDMI-0 --set "output_csc" "bypass"
          xrandr --output HDMI-0 --set "output_csc" "tvrgb"
          xrandr --output HDMI-0 --set "output_csc" "ycbcr601"
          xrandr --output HDMI-0 --set "output_csc" "ycbcr709"


          It's also possible that some of your monitor's settings need fiddling with.






          share|improve this answer
































            1



















            You just missed a dash "-" between HDMI and 1. The corrected command is:



            xrandr --output HDMI-1 --set "Broadcast RGB" "Full"





            share|improve this answer




























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              2 Answers
              2






              active

              oldest

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              2 Answers
              2






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              3



















              The Broadcast RGB property is for Intel graphics cards. output_csc appears to be the AMD variant of the same thing.



              output_csc is set to bypass in what you posted, which should be equivalent to the Full range (0-255).



              You can try setting output_csc to other valid options, notably tvrgb (16-235).



              xrandr --output HDMI-0 --set "output_csc" "bypass"
              xrandr --output HDMI-0 --set "output_csc" "tvrgb"
              xrandr --output HDMI-0 --set "output_csc" "ycbcr601"
              xrandr --output HDMI-0 --set "output_csc" "ycbcr709"


              It's also possible that some of your monitor's settings need fiddling with.






              share|improve this answer





























                3



















                The Broadcast RGB property is for Intel graphics cards. output_csc appears to be the AMD variant of the same thing.



                output_csc is set to bypass in what you posted, which should be equivalent to the Full range (0-255).



                You can try setting output_csc to other valid options, notably tvrgb (16-235).



                xrandr --output HDMI-0 --set "output_csc" "bypass"
                xrandr --output HDMI-0 --set "output_csc" "tvrgb"
                xrandr --output HDMI-0 --set "output_csc" "ycbcr601"
                xrandr --output HDMI-0 --set "output_csc" "ycbcr709"


                It's also possible that some of your monitor's settings need fiddling with.






                share|improve this answer



























                  3















                  3











                  3









                  The Broadcast RGB property is for Intel graphics cards. output_csc appears to be the AMD variant of the same thing.



                  output_csc is set to bypass in what you posted, which should be equivalent to the Full range (0-255).



                  You can try setting output_csc to other valid options, notably tvrgb (16-235).



                  xrandr --output HDMI-0 --set "output_csc" "bypass"
                  xrandr --output HDMI-0 --set "output_csc" "tvrgb"
                  xrandr --output HDMI-0 --set "output_csc" "ycbcr601"
                  xrandr --output HDMI-0 --set "output_csc" "ycbcr709"


                  It's also possible that some of your monitor's settings need fiddling with.






                  share|improve this answer














                  The Broadcast RGB property is for Intel graphics cards. output_csc appears to be the AMD variant of the same thing.



                  output_csc is set to bypass in what you posted, which should be equivalent to the Full range (0-255).



                  You can try setting output_csc to other valid options, notably tvrgb (16-235).



                  xrandr --output HDMI-0 --set "output_csc" "bypass"
                  xrandr --output HDMI-0 --set "output_csc" "tvrgb"
                  xrandr --output HDMI-0 --set "output_csc" "ycbcr601"
                  xrandr --output HDMI-0 --set "output_csc" "ycbcr709"


                  It's also possible that some of your monitor's settings need fiddling with.







                  share|improve this answer













                  share|improve this answer




                  share|improve this answer










                  answered Mar 6 '17 at 20:54









                  GeorgeGeorge

                  413 bronze badges




                  413 bronze badges


























                      1



















                      You just missed a dash "-" between HDMI and 1. The corrected command is:



                      xrandr --output HDMI-1 --set "Broadcast RGB" "Full"





                      share|improve this answer































                        1



















                        You just missed a dash "-" between HDMI and 1. The corrected command is:



                        xrandr --output HDMI-1 --set "Broadcast RGB" "Full"





                        share|improve this answer





























                          1















                          1











                          1









                          You just missed a dash "-" between HDMI and 1. The corrected command is:



                          xrandr --output HDMI-1 --set "Broadcast RGB" "Full"





                          share|improve this answer
















                          You just missed a dash "-" between HDMI and 1. The corrected command is:



                          xrandr --output HDMI-1 --set "Broadcast RGB" "Full"






                          share|improve this answer















                          share|improve this answer




                          share|improve this answer








                          edited Oct 2 at 9:55









                          user3140225

                          2,7104 gold badges12 silver badges24 bronze badges




                          2,7104 gold badges12 silver badges24 bronze badges










                          answered Mar 8 '18 at 10:45









                          Aleksandr MaksimovicAleksandr Maksimovic

                          112 bronze badges




                          112 bronze badges































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