Bsrgvty

I recently got a new laptop with an integrated AMD gpu and a dedicated Nvidia GTX gpu, I decided to make it a Windows/Ubuntu dual boot. I'm doing a bit of GPU programming so I would like to get at least one of the cards working with OpenCL/OpenGL, if possible the Nvidia card, and it would be even better if I could have both working.

When I installed Ubuntu, I had a few problems with the Nvidia driver causing freezes and login loops, but I fixed it with prime-select intel (I don't understand what "intel" means in the command since I don't have an intel gpu).
At this moment, I think my amd gpu was detected, since I could login into gnome without a problem, but it wasn't detected by OpenCl, so I decided to install the amdgpu-pro driver.

After reboot, I would get stuck on a blank screen just after the grub menu. I fiddled around a bit in recovery mode (since I hadn't touched kernel modules before it's possible I broke a few things at that point, though I'm 99% sure I didn't affect things other then the gpu drivers) and after a bit a added nomodeset to the kernel command line, this allowed me to continue boot up to the login screen. I'm now stuck on a login loop for my Ubuntu desktop environment, ecen when I uninstall amdgpu-pro, but I can login into i3wm just fine.

From what I understand I have an error in my drivers, creating the blank screen when booting with mode settings, and crashing Xorg, which is why I get a login loop when trying to login into Ubuntu. I also get an error when trying to launch failsafeX in recovery mode.

My GPUs :

$ sudo lshw -c video 
 *-display UNCLAIMED 
 description: 3D controller
 product: GP107M [GeForce GTX 1050 Mobile]
 vendor: NVIDIA Corporation
 physical id: 0
 bus info: pci@0000:01:00.0
 version: a1
 width: 64 bits
 clock: 33MHz
 capabilities: pm msi pciexpress bus_master cap_list
 configuration: latency=0
 resources: memory:f6000000-f6ffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:f000(size=128) memory:f7000000-f707ffff
 *-display UNCLAIMED
 description: VGA compatible controller
 product: Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series]
 vendor: Advanced Micro Devices, Inc. [AMD/ATI]
 physical id: 0
 bus info: pci@0000:04:00.0
 version: c4
 width: 64 bits
 clock: 33MHz
 capabilities: pm pciexpress msi msix vga_controller bus_master cap_list
 configuration: latency=0
 resources: memory:e0000000-efffffff memory:f0000000-f01fffff ioport:d000(size=256) memory:f7700000-f777ffff

Errors in Xorg.0.log after I try to login into Ubuntu :

[ 364.970] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[ 364.970] (II) FBDEV: driver for framebuffer: fbdev
[ 364.970] (II) VESA: driver for VESA chipsets: vesa
[ 364.970] xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted)
[ 364.970] (EE) open /dev/dri/card0: No such file or directory
[ 364.970] (WW) Falling back to old probe method for modesetting
[ 364.970] (EE) open /dev/dri/card0: No such file or directory
[ 364.970] (II) Loading sub module "fbdevhw"
[ 364.970] (II) LoadModule: "fbdevhw"
[ 364.970] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 364.970] (II) Module fbdevhw: vendor="X.Org Foundation"
[ 364.970] compiled for 1.19.6, module version = 0.0.2
[ 364.970] ABI class: X.Org Video Driver, version 23.0
[ 364.970] (**) FBDEV(1): claimed PCI slot 4@0:0:0
[ 364.970] (II) FBDEV(1): using default device
[ 364.970] (WW) Falling back to old probe method for vesa
[ 364.970] (EE) Screen 0 deleted because of no matching config section.
[ 364.970] (II) UnloadModule: "modesetting"
[ 364.970] (II) FBDEV(0): Creating default Display subsection in Screen section
 "Default Screen Section" for depth/fbbpp 24/32
[ 364.970] (==) FBDEV(0): Depth 24, (==) framebuffer bpp 32
[ 364.970] (==) FBDEV(0): RGB weight 888
--
[ 364.971] (==) FBDEV(0): Backing store enabled
[ 364.971] (==) FBDEV(0): DPMS enabled
[ 364.972] (==) RandR enabled
[ 364.976] (II) SELinux: Disabled on system
[ 364.976] (II) AIGLX: Screen 0 is not DRI2 capable
[ 364.976] (EE) AIGLX: reverting to software rendering
[ 364.988] (EE) AIGLX error: amdgpu does not export required DRI extension
[ 364.988] (EE) GLX: could not load software renderer
[ 364.988] (II) GLX: no usable GL providers found for screen 0
[ 365.030] (II) config/udev: Adding input device Power Button (/dev/input/event3)
[ 365.030] (**) Power Button: Applying InputClass "libinput keyboard catchall"
[ 365.030] (II) LoadModule: "libinput"
[ 365.030] (II) Loading /usr/lib/xorg/modules/input/libinput_drv.so

Errors in Xorg.failsafe.log:

[ 18.074] (II) Loading /usr/lib/xorg/modules/libint10.so
[ 18.074] (II) Module int10: vendor="X.Org Foundation"
[ 18.074] compiled for 1.19.6, module version = 1.0.0
[ 18.074] ABI class: X.Org Video Driver, version 23.0
[ 18.074] (II) VESA(0): initializing int10
[ 18.075] (EE) VESA(0): Cannot read int vect
[ 18.075] (II) UnloadModule: "vesa"
[ 18.075] (II) UnloadSubModule: "int10"
[ 18.075] (II) Unloading int10
[ 18.075] (II) UnloadSubModule: "vbe"
[ 18.075] (II) Unloading vbe
[ 18.075] (EE) Screen(s) found, but none have a usable configuration.
[ 18.075] (EE) 
Fatal server error:
[ 18.075] (EE) no screens found(EE) 
[ 18.075] (EE) 
Please consult the The X.Org Foundation support 
 at http://wiki.x.org
 for help. 
[ 18.075] (EE) Please also check the log file at "/var/log/Xorg.failsafe.log" for additional information.
[ 18.075] (EE) 
[ 18.086] (EE) Server terminated with error (1). Closing log file.

I also found a few errors related to gpu in syslog and dmesg, but I'm not sure which ones are relevant and which ones aren't.

Anyone has an idea what I should do next? I'm a little bit stuck.

Thanks in advance.