Score:2

recent update broke video driver

sl flag

2 days ago I updated my system with apt update and apt upgrade. Afterwards I was able to boot, but the screens where just black. Enabling the tag nomodeset in grub, thus disabling my video drivers showed me my graphic interface again, but it didn't seem to detect my screens. It only showed a zoomed in picture on my one screen, but doesn't recognize my second display at all. My second display is still black even though working (tested it with another computer)

-Processor-
AMD Ryzen 3 2200G with Radeon Vega Graphics

-Version-
Kernel      : Linux 5.15.0-53-generic (x86_64)
Version     : #59-Ubuntu SMP Mon Oct 17 18:53:30 UTC 2022
C Library   : GNU C Library / (Ubuntu GLIBC 2.35-0ubuntu3.1) 2.35
Distribution: Ubuntu 22.04.1 LTS

I've tried installing AMD's drivers with apt install amdgpu or amdgpu-install but both ways had errors on errors with dependencies and similar stuff. After a day of work I resolved all errors, but it still didn't work. I've read that those are just the pro driver which have couple more features, but are for most cases not needed.

As far as I know drivers are baked in to the Kernel, including AMD's drivers. Thus this leads me to believe the Kernel doesn't support my particular video card yet.

So how can I resolve this? An option I have thought of are, to wait it out until the Kernel gets fixed. Can I rely on that and how long would it take? Another way could be to downgrade the Kernel. If this could work, how can I safely do so without completely damaging my system? Are there any better ways?

Score:3
cw flag

This is most likely a known bug, see

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1996740, https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1990920

I have the same problem. I have worked around it by loading the previous kernel 5.15.0-52 in the grub menu.

I'm waiting for the revert to be available in the apt repositories before upgrading again.

Best, Anders Søndergaard

Hellow2 avatar
sl flag
hey thank you very much. After restart with kernel 5.15.0-52 it didn't work. Do I have to do something afterwards like restarting any services? I am using X11.
Anders Søndergaard avatar
cw flag
If you removed the nomodeset flag from grub and reverted to the xserver-xorg-video-radeon drivers, then I don't know, it may be another problem. (?)
Hellow2 avatar
sl flag
I checked it. Xorg still uses amdgpu. I gotta find a way to switch to xserver-xorg-video-radeon. thanks leading me the right way
I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.