Arch Linux

RezwanArefin01

Member

Registered: 2023-08-06

Posts: 4

[SOLVED] KDE pixels are shuffled after update

After a full system update, all the pixels in the screen are shuffled like https://imgur.com/a/Ug2Mnhu

After turning compositor off with the following, I could run some apps correctly (Konsole, Firefox, Brave, Dolphin), while most other apps still open up with shuffled pixels.

qbus org.kde.Kwin /Compositor suspend

journalctl: https://0x0.st/H_8U.txt

Last edited by RezwanArefin01 (2023-08-06 15:39:59)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 76,119

Re: [SOLVED] KDE pixels are shuffled after update

Those look like invalid texure memory.

Looks like a hybrid system and you're running on the amdgpu chip, please post your Xorg log, https://wiki.archlinux.org/title/Xorg#General

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RezwanArefin01

Member

Registered: 2023-08-06

Posts: 4

Re: [SOLVED] KDE pixels are shuffled after update

Here is the log file: Xorg.0.log.

To enable the AMDGPU, I followed the instructions in https://wiki.archlinux.org/title/AMDGPU. Which was to modify mkinitcpio MODULES=(amdgpu radeon) and add two kernel parameters (kernel parameters seems to be shown in the above log files as well).

The above log seems to say that it failed to load the amdgpu module! But before the update the gpu was working, i.e. I could run apps that only run on the gpu. Also I get:

$ lspci -nnk | grep amdgpu
Kernel driver in use: amdgpu
Kernel modules: radeon, amdgpu

Last edited by RezwanArefin01 (2023-08-06 15:16:23)

RezwanArefin01

Member

Registered: 2023-08-06

Posts: 4

Re: [SOLVED] KDE pixels are shuffled after update

Sorry it looks like I didn't have xf86-video-amdgpu installed (I had removed it after facing this issue, trying to disable amdgpu).

Here is the new log after installing the package: Xorg.0.log. The problem still persists, but the log doesn't have the amdgpu load failed message.

Currently the only error in the log is this:

(EE) AIGLX error: dlopen of /usr/lib/dri/i965_dri.so failed (/usr/lib/dri/i965_dri.so: cannot open shared object file: No such file or directory)
(EE) AIGLX error: unable to load driver i965

Last edited by RezwanArefin01 (2023-08-06 15:25:43)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 76,119

Re: [SOLVED] KDE pixels are shuffled after update

You're actually running the X11 server on the intel chip and xf86-video-intel
Step one: remove all xf86-video-* pacakges.
Then report back.

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RezwanArefin01

Member

Registered: 2023-08-06

Posts: 4

Re: [SOLVED] KDE pixels are shuffled after update

Thanks! The problem got fixed by removing all xf86-video-* packages!

To my surprise, the app that need the GPU is also working!

Here is the current Xorg.0.log

Do I need to do anything to get back to previous state (or am I already there?).

Last edited by RezwanArefin01 (2023-08-06 15:38:17)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 76,119

Re: [SOLVED] KDE pixels are shuffled after update

No, you should be fine w/ a regular prime setup (you're running on the intel chip, where the only output is attached, and have the amdgpu chip available for DRI_PRIME=1)

Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

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