Bug 89893

Summary: Windows slow/stall/freeze when minimizing/restoring/etc in Unity 7
Product: xorg Reporter: d3vid <dseaward925>
Component: Driver/nouveauAssignee: Nouveau Project <nouveau>
Status: RESOLVED NOTOURBUG QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: 7.7 (2012.06)   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
i915 platform: i915 features:
Description Flags
Recent xorg log file none

Description d3vid 2015-04-03 16:05:11 UTC
Steps to reproduce:

 * Launch Unity desktop session
 * Minimize current window or alt-tab between windows
 * Reveal launcher to click on application
 * Click `Super` to bring up Dash
 * Hold `Super` to bring up Keyboard Shortcuts

What should happen:

Action completes smoothly and quickly.

What happens instead:

 * Action may be slow / animation jerky.
 * Action may stall (animation frozen on given frame, e.g. window partially minimized) - initiating another action cancels first action and second action may succeed (most often calling Guake with F12 seems to solve the issue)
 * Action may freeze - cursor no longer moves - a soft reboot (Alt+PrtScr+REISUB) usually works, otherwise a hard reboot


This occurs on Ubuntu 14.04 and 14.10. See https://bugs.launchpad.net/bugs/1314587 for a downstream bug report. It was suggested there that an upstream report would be helpful.

I'm not sure which X.org component this applies to, if there is any additional info I can provide please let me know (also see downstream bug, linked above).
Comment 1 Michel Dänzer 2015-04-14 07:24:02 UTC
Please attach the Xorg log file.
Comment 2 d3vid 2015-05-13 14:09:52 UTC
Created attachment 115741 [details]
Recent xorg log file
Comment 3 Ilia Mirkin 2015-10-22 07:03:09 UTC
There is no mention of nouveau anywhere in here, indications of the other bug are that nouveau vs nvidia doesn't matter, and I see no indication of DRI_PRIME ever getting set. I believe this is miscategorized, it's unclear to me why this is in the fd.o bugtracker at all, sounds like some ubuntu thing.

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