Bug 111816

Summary: TearFree breaks after entering fullcreen in pretty much every program
Product: xorg Reporter: tempel.julian
Component: Driver/intelAssignee: Chris Wilson <chris>
Status: RESOLVED MOVED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: not set    
Version: git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
i915 platform: i915 features:
Description Flags
dmesg log
xorg log none

Description tempel.julian 2019-09-25 14:05:49 UTC
TearFree works in general, scrolling in Firefox is free of tearing with it without compositor.
But as soon as I enter fullscreen mode, it is broken afterwards.

This is on Gemini Lake and
recent xorg-server-git master, xf86-video-intel-git master

Attaching dmesg.log and xorg.log.

I reported a similar issue for xf86-video-amdgpu which got fixed:
Comment 1 tempel.julian 2019-09-25 14:06:17 UTC
Created attachment 145512 [details]
dmesg log
Comment 2 tempel.julian 2019-09-25 14:06:33 UTC
Created attachment 145513 [details]
xorg log
Comment 3 Chris Wilson 2019-09-25 15:28:45 UTC
I suggest bisecting Xorg...
Comment 4 Chris Wilson 2019-09-25 15:30:13 UTC
Probably the fallout from 

commit 87491ced98705a14be2bb5a3ce7e41cb5ffc11d0
Author: Michel Dänzer <michel.daenzer@amd.com>
Date:   Mon Mar 25 12:32:48 2019 +0100

    present/scmd: Check that the flip and screen pixmap pitches match
Comment 5 tempel.julian 2019-09-25 15:55:24 UTC
Thanks for your response.
This commit already has been reverted in master/1.20 branch, it is not at fault in this case.
Comment 6 Martin Peres 2019-11-27 13:51:11 UTC
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