Ubuntu 18.04: No USB, WLAN, HDMI after upgrading kernelUbuntu Freezes since kernel 4.8.0-36 when USB wifi drive plugged inOnly one of external monitors works (Lenovo T480 on Ubuntu 18.04)Ubuntu 18.10 with kernel 4.18 stops workingAcer laptop fails to boot with new kernels 5.0.0-23 and 5.0.0-25
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Ubuntu 18.04: No USB, WLAN, HDMI after upgrading kernel
Ubuntu Freezes since kernel 4.8.0-36 when USB wifi drive plugged inOnly one of external monitors works (Lenovo T480 on Ubuntu 18.04)Ubuntu 18.10 with kernel 4.18 stops workingAcer laptop fails to boot with new kernels 5.0.0-23 and 5.0.0-25
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My situation:
I upgraded the firmware of my Lenovo T480 (via Ubuntu's "application store") and everything went fine except that I was running 4.18 kernel before and now it did not boot anymore due to some signature problem (Secure Boot is enabled). No problem, I just selected 4.15 from boot menu and it still worked (why?).
So, I installed the newest 5.0.0. However, after reboot I noticed that USB didn't work, WLAN didn't work and even the external display didn't work anymore. Then I installed 4.17. Same problem. It seems that only the default 4.15 now works.
Any ideas what has happened?
There are no errors when installing the other kernels. It's just after reboot I'm lacking USB, WLAN and HDMI. Otherwise the kernels seem to work.
boot 18.04 usb kernel hdmi
asked Sep 24 at 13:24
user205301user205301
9731 gold badge7 silver badges16 bronze badges
add a comment
|
My situation:
I upgraded the firmware of my Lenovo T480 (via Ubuntu's "application store") and everything went fine except that I was running 4.18 kernel before and now it did not boot anymore due to some signature problem (Secure Boot is enabled). No problem, I just selected 4.15 from boot menu and it still worked (why?).
So, I installed the newest 5.0.0. However, after reboot I noticed that USB didn't work, WLAN didn't work and even the external display didn't work anymore. Then I installed 4.17. Same problem. It seems that only the default 4.15 now works.
Any ideas what has happened?
There are no errors when installing the other kernels. It's just after reboot I'm lacking USB, WLAN and HDMI. Otherwise the kernels seem to work.
boot 18.04 usb kernel hdmi
asked Sep 24 at 13:24
user205301user205301
9731 gold badge7 silver badges16 bronze badges
add a comment
|
My situation:
I upgraded the firmware of my Lenovo T480 (via Ubuntu's "application store") and everything went fine except that I was running 4.18 kernel before and now it did not boot anymore due to some signature problem (Secure Boot is enabled). No problem, I just selected 4.15 from boot menu and it still worked (why?).
So, I installed the newest 5.0.0. However, after reboot I noticed that USB didn't work, WLAN didn't work and even the external display didn't work anymore. Then I installed 4.17. Same problem. It seems that only the default 4.15 now works.
Any ideas what has happened?
There are no errors when installing the other kernels. It's just after reboot I'm lacking USB, WLAN and HDMI. Otherwise the kernels seem to work.
boot 18.04 usb kernel hdmi
asked Sep 24 at 13:24
user205301user205301
9731 gold badge7 silver badges16 bronze badges
My situation:
I upgraded the firmware of my Lenovo T480 (via Ubuntu's "application store") and everything went fine except that I was running 4.18 kernel before and now it did not boot anymore due to some signature problem (Secure Boot is enabled). No problem, I just selected 4.15 from boot menu and it still worked (why?).
So, I installed the newest 5.0.0. However, after reboot I noticed that USB didn't work, WLAN didn't work and even the external display didn't work anymore. Then I installed 4.17. Same problem. It seems that only the default 4.15 now works.
Any ideas what has happened?
There are no errors when installing the other kernels. It's just after reboot I'm lacking USB, WLAN and HDMI. Otherwise the kernels seem to work.
boot 18.04 usb kernel hdmi
boot 18.04 usb kernel hdmi
asked Sep 24 at 13:24
user205301user205301
9731 gold badge7 silver badges16 bronze badges
asked Sep 24 at 13:24
user205301user205301
9731 gold badge7 silver badges16 bronze badges
edited Sep 27 at 11:11
user205301
asked Sep 24 at 13:24
user205301user205301
9731 gold badge7 silver badges16 bronze badges
asked Sep 24 at 13:24
user205301user205301
9731 gold badge7 silver badges16 bronze badges
asked Sep 24 at 13:24
user205301user205301
9731 gold badge7 silver badges16 bronze badges
9731 gold badge7 silver badges16 bronze badges
add a comment
|
add a comment
|
1 Answer
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Do you have the newest HWE stack?
Perhaps
sudo apt install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04
helps.
Before executing you should read here: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
answered Sep 27 at 6:36
ubuntuuserubuntuuser
454 bronze badges
add a comment
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Do you have the newest HWE stack?
Perhaps
sudo apt install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04
helps.
Before executing you should read here: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
answered Sep 27 at 6:36
ubuntuuserubuntuuser
454 bronze badges
add a comment
|
Do you have the newest HWE stack?
Perhaps
sudo apt install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04
helps.
Before executing you should read here: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
answered Sep 27 at 6:36
ubuntuuserubuntuuser
454 bronze badges
add a comment
|
Do you have the newest HWE stack?
Perhaps
sudo apt install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04
helps.
Before executing you should read here: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
answered Sep 27 at 6:36
ubuntuuserubuntuuser
454 bronze badges
Do you have the newest HWE stack?
Perhaps
sudo apt install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04
helps.
Before executing you should read here: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
answered Sep 27 at 6:36
ubuntuuserubuntuuser
454 bronze badges
answered Sep 27 at 6:36
ubuntuuserubuntuuser
454 bronze badges
answered Sep 27 at 6:36
ubuntuuserubuntuuser
454 bronze badges
answered Sep 27 at 6:36
ubuntuuserubuntuuser
454 bronze badges
454 bronze badges
add a comment
|
add a comment
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