[amdgpu] alienware aw3423dwf flickers at 165hz under linux only.
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
kwin (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
xorg-server (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
alienware aw3423dwf flickers when set to 165hz. Doesn't at 100hz. Works fine under windows. GPU is Radeon 6950XT. If I change refresh rate down to 100hz it's fine.
Happened on 22.04 LTS, and the amdgpu ppa made games not work, so I upgraded to 22.10 instead.
Description: Ubuntu 22.10
Release: 22.10
I expect the display not to flicker at 165hz. monitor doesn't lose sync, it's just like a few pixel wide bar that runs the width of the screen that shows up randomly for a fraction of a second. Happens when just using the desktop environment, not sure if it happens when playing a game.
filename: /lib/modules/
srcversion: BB7C61D4A8F6AFF
99% sure I should be under X11, not wayland.
ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: gnome-shell 43.1-0ubuntu1
ProcVersionSign
Uname: Linux 5.15.0-52-generic x86_64
NonfreeKernelMo
ApportVersion: 2.23.1-0ubuntu3
Architecture: amd64
CasperMD5CheckR
CurrentDesktop: KDE
Date: Mon Jan 23 18:38:03 2023
DisplayManager: sddm
InstallationDate: Installed on 2022-10-23 (92 days ago)
InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1)
RelatedPackageV
ShellJournal: -- No entries --
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to kinetic on 2022-11-06 (78 days ago)
affects: | gnome-shell (Ubuntu) → xorg-server (Ubuntu) |
This sounds like a bandwidth management issue, which I know Linux doesn't do as well as Windows (on Intel graphics either).
Firstly you seem to have the wrong (old) kernel still installed. It should be version 5.19 so please try fixing that with:
sudo apt install linux-generic
or
sudo apt install linux-generic- hwe-22. 04
and reboot.
If the problem persists after that then please run:
journalctl -b0 > journal.txt
lspci -k > lspci.txt
and attach the resulting text files here.