Bug 87443 - Synchronization (?) Artifacts with intel/radeonsi PRIME and compositing in glxgears and zetrix (wine)
Summary: Synchronization (?) Artifacts with intel/radeonsi PRIME and compositing in gl...
Status: RESOLVED DUPLICATE of bug 76367
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Gallium/radeonsi (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Default DRI bug account
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Reported: 2014-12-18 12:58 UTC by Christoph Haag
Modified: 2014-12-18 14:33 UTC (History)
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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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