Rx 480 card, running on Linux 4.8.3. Gnome 3.22.1, Mesa 12.0.3. When I first boot up the machine, everything runs great, gnome shell animations are smooth, scrolling in most programs is fast and stutter free. But after a few minutes everything goes downhill, gnome shell animations and scrolling in chrome becomes so slow. Stutter everywhere. I think card goes into a very low clock speed and never goes up. Let me know if I can provide more information in form of logs or back traces. Thanks.
dmesg! Xorg log! journalctl -b _SYSTEMD_UNIT=session-${XDG_SESSION_ID}.scope
Created attachment 127489 [details] dmesg output
Created attachment 127490 [details] session log
Have you manually disabled DRI3? Could you try to enable it as a workaround?
This was Archlinux default configuration. I did enable DRI3 but it did not had any diffrence on Gnome shell performance. But I noticed scrolling lag on applications are gone. I was also able to play CS:GO with very playable framerates. (Don't know if it was DRI3 or recent Archlinux kernel updates) I'll open up a bug for gnome-shell to see what they have to say.
(In reply to Sasan from comment #0) > But after a few minutes everything goes downhill, gnome shell animations and > scrolling in chrome becomes so slow. Stutter everywhere. I think card goes > into a very low clock speed and never goes up. If that is the case, it should be evident from watching the contents of /sys/kernel/debug/dri/0/amdgpu_pm_info before and after the problem occurs.
Is this still an issue with current kernel & Mesa?
Assuming this was more likely a kernel issue, and is no longer an issue with current gnome-shell & drivers. Feel free to reopen otherwise.
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