Score:0

Since last kernel update (5.15.0-52-generic), screen resolution is broken, and network not working

um flag

Other kernel modules are probably not working either. Haven't confirmed but I wouldn't be surprised if e.g. USB didn't work either.

Going into the GRUB menu and loading the previous version (5.15.0-47-generic) works fine. I've had riffs on this issue ever since I dist-upgraded to 22.04.1 LTS. When first asking in #ubuntu in IRC I got asked to uninstall linux-generic-hwe-20.04 that was left dangling from the previous release, one thing I notice is that I don't have a corresponding 22.04 package, but since it works fine with the older kernel version I think that might not be the issue?

Also, possibly unrelated but I had a mess of nvidia drivers, installed nvidia-515 and got rid of everything else and ever since I've been having video glitches.

Here's some checks I made. I see no obvious issues, but I don't know much to be honest.

 ❯ apt list --installed | grep '^linux' | less
linux-base/jammy,jammy,now 4.5ubuntu9 all [installed,automatic]
linux-firmware/jammy-updates,jammy-updates,now 20220329.git681281e4-0ubuntu3.6 all [installed,automatic]
linux-headers-5.11.0-40-generic/now 5.11.0-40.44 amd64 [installed,local]
linux-headers-5.11.0-40/now 5.11.0-40.44 all [installed,local]
linux-headers-5.15.0-47-generic/jammy-updates,jammy-security,jammy-security,now 5.15.0-47.51 amd64 [installed,automatic]
linux-headers-5.15.0-47/jammy-updates,jammy-updates,jammy-security,jammy-security,jammy-security,jammy-security,now 5.15.0-47.51 all [installed,automatic]
linux-image-5.11.0-40-generic/now 5.11.0-40.44 amd64 [installed,local]
linux-image-5.15.0-47-generic/jammy-updates,jammy-security,jammy-security,now 5.15.0-47.51 amd64 [installed,automatic]
linux-image-5.15.0-52-generic/jammy-updates,jammy-security,jammy-security,now 5.15.0-52.58 amd64 [installed,automatic]
linux-libc-dev/jammy-updates,jammy-security,jammy-security,now 5.15.0-52.58 amd64 [installed]
linux-modules-5.11.0-40-generic/now 5.11.0-40.44 amd64 [installed,local]
linux-modules-5.15.0-47-generic/jammy-updates,jammy-security,jammy-security,now 5.15.0-47.51 amd64 [installed,automatic]
linux-modules-5.15.0-52-generic/jammy-updates,jammy-security,jammy-security,now 5.15.0-52.58 amd64 [installed,automatic]
linux-modules-extra-5.11.0-40-generic/now 5.11.0-40.44 amd64 [installed,local]
linux-modules-extra-5.15.0-47-generic/jammy-updates,jammy-security,jammy-security,now 5.15.0-47.51 amd64 [installed,automatic]
linux-objects-nvidia-470-5.11.0-40-generic/now 5.11.0-40.44+1 amd64 [installed,local]
linux-objects-nvidia-470-5.15.0-47-generic/jammy-updates,jammy-security,jammy-security,now 5.15.0-47.51 amd64 [installed,automatic]
linux-objects-nvidia-470-5.15.0-52-generic/jammy-updates,jammy-security,jammy-security,now 5.15.0-52.58+1 amd64 [installed,automatic]
linux-signatures-nvidia-5.11.0-40-generic/now 5.11.0-40.44+1 amd64 [installed,local]
linux-signatures-nvidia-5.15.0-47-generic/jammy-updates,jammy-security,jammy-security,now 5.15.0-47.51 amd64 [installed,automatic]
linux-signatures-nvidia-5.15.0-52-generic/jammy-updates,jammy-security,jammy-security,now 5.15.0-52.58+1 amd64 [installed,automatic]
linux-sound-base/jammy,jammy,now 1.0.25+dfsg-0ubuntu7 all [installed,automatic]
❯ cat /etc/os-release 
PRETTY_NAME="Ubuntu 22.04.1 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.1 LTS (Jammy Jellyfish)"
VERSION_CODENAME=jammy
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=jammy

dkms status output with the non-working kernel running:

$ dkms status
nvidia/510.85.02, 5.15.0-47-generic, x86_64: installed

with the older, working kernel, it's exactly the same:

$ dkms status
nvidia/510.85.02, 5.15.0-47-generic, x86_64: installed

obviously that older kernel version on the newer kernel run looks suspect

Terrance avatar
id flag
What is the output of `dkms status`? Please add that to your question. Thank you!
Lacrymology avatar
um flag
@Terrance there it is, sorry about how long this took. Indeed that looks weird
Terrance avatar
id flag
I see the driver never carried over into your new kernel update. I don't see the network driver though. Strange. Anyways, you can install the driver into the newer Kernel by running `sudo dkms install -m nvidia -v 510.85.02 -k 5.15.0-52-generic` where I am assuming from your output that you have the Kernel version of `5.15.0-52-generic` installed.
Lacrymology avatar
um flag
thanks, @Terrance. The kernel headers were missing, that might be why dkms didn't upgrade the drivers, I guess. IDK.
Terrance avatar
id flag
Did you install the Kernel headers? If not, they are installed by doing `sudo apt install linux-headers-5.15.0-52-generic`
Lacrymology avatar
um flag
Still no go. dkms status now shows The 52 version installed but I'm still running in low resolution. IDK if this helps, but I have my HDD encrypted, and the difference is already there on the password input prompt
Lacrymology avatar
um flag
Sorry the back and forth takes so long, but this is my work box and I don't quite find the time to take off and try things out, it's very annoying
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