Bug 98369

Summary: gnome shell slows down after boot
Product: DRI Reporter: Sasan <sasy360>
Component: DRM/AMDgpuAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: medium CC: sasy360
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg output
none
session log none

Description Sasan 2016-10-21 05:50:38 UTC 
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.
Comment 1 Ernst Sjöstrand 2016-10-21 06:59:26 UTC 
dmesg! Xorg log!
journalctl -b _SYSTEMD_UNIT=session-${XDG_SESSION_ID}.scope
Comment 2 Sasan 2016-10-23 00:12:06 UTC 
Created attachment 127489 [details]
dmesg output
Comment 3 Sasan 2016-10-23 00:12:36 UTC 
Created attachment 127490 [details]
session log
Comment 4 Ernst Sjöstrand 2016-10-23 16:30:42 UTC 
Have you manually disabled DRI3? Could you try to enable it as a workaround?
Comment 5 Sasan 2016-10-24 02:29:58 UTC 
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.
Comment 6 Michel Dänzer 2016-10-25 03:52:06 UTC 
(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.
Comment 7 Michel Dänzer 2018-10-04 16:13:15 UTC 
Is this still an issue with current kernel & Mesa?
Comment 8 Michel Dänzer 2019-07-18 09:30:05 UTC 
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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