Bug 87443

Summary: Synchronization (?) Artifacts with intel/radeonsi PRIME and compositing in glxgears and zetrix (wine)
Product: Mesa Reporter: Christoph Haag <haagch>
Component: Drivers/Gallium/radeonsiAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED DUPLICATE QA Contact:
Severity: normal    
Priority: medium    
Version: git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Christoph Haag 2014-12-18 12:58:27 UTC 
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Wimbledon XT [Radeon HD 7970M] (rev ff)

I'm on latest mesa git and xf86-video-intel-git and it has been happening for a while.

Here is a video: https://www.youtube.com/watch?v=al_gLzInYq0
sorry about the shaking and bad quality but as you can see in the video, the effect vanishes when a screen recording application is running.

It also only happens with compositing, (both xrender and opengl compositing) and vanishes when compositing is disabled.

I didn't think much about it, because it only affected glxgears and no other application, but then I tested zetrix in wine: http://www.download-central.ws/Win32/Tetris/ZetriX/ and I saw the same effect. It doesn't work right anyway, i.e. fonts don't show, but the background animation has these line artifacts too.

And then I have no idea if this is the correct place here at radeonsi.
Comment 1 Alex Deucher 2014-12-18 14:33:32 UTC 
This is a limitation of prime at the moment.  There is no cross device
synchronization support yet.

*** This bug has been marked as a duplicate of bug 76367 ***

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