Bug 378679 - Intel modeseting drive intense tear with Skylake CPUs
Summary: Intel modeseting drive intense tear with Skylake CPUs
Status: RESOLVED NOT A BUG
Alias: None
Product: kwin
Classification: Plasma
Component: compositing (show other bugs)
Version: 5.9.4
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-04-12 02:51 UTC by romuluspb
Modified: 2017-05-09 09:48 UTC (History)
0 users

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Description romuluspb 2017-04-12 02:51:21 UTC 
Apparently modeseting did not implement a tearfree mode and particularly Skylake nee page_flip or buffer-age:

https://whirm.eu/posts/fix-for-xorgs-modesetting-driver-tearing/

I've tried KWIN_TRIPLE_BUFFER=1 but no effect to. Actualy I'm using arch but can confirm it happens at neon too.
Comment 1 Martin Flöser 2017-04-12 05:10:33 UTC 
Please provide the output of:
qdbus org.kde.KWin /KWin supportInformation
Comment 2 Christoph Feck 2017-04-25 17:38:24 UTC 
If you can provide the information requested in comment #1, please add it.
Comment 3 Christoph Feck 2017-05-03 16:27:16 UTC 
To further investigate this issue, KDE developers need the information requested in comment #1. If you can provide it, or need help with finding that information, please add a comment.
Comment 4 Christoph Feck 2017-05-09 09:48:59 UTC 
No response, changing status. If you have new information, please add it.