Bug 58249 - Scrolling artifacts in GTK2 applications [gen6, SNA]
Summary: Scrolling artifacts in GTK2 applications [gen6, SNA]
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/intel (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Chris Wilson
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-12-13 16:21 UTC by Clemens Eisserer
Modified: 2012-12-13 20:41 UTC (History)
0 users

See Also:
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Attachments
artifact while corruption was "in progress" (471.23 KB, image/jpeg)
2012-12-13 17:14 UTC, Clemens Eisserer 		no flags Details
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Description Clemens Eisserer 2012-12-13 16:21:55 UTC 
On my gen6 based notebook running 2.20.15, I sometimes experience artifacts when scrolling in GTK2 applications. It seems like something is wrong with CopyArea.
Although scrolling takes place immediately, some pixel lines are updated only after some delay, reminding me of some effects provided by openoffice impress when changing slides.
Its very visible in the Thunar file manager when scrolling through directories containing a large number of items, the pidgin chat application or the sysprof system wide profiler gui.

Unfourtunatly when running a screen-cast application, those effects do not happen, so a video created with my horrible old mobile phone is the best I can provide for now: http://youtu.be/q7_UaaGmvyw
Comment 1 Clemens Eisserer 2012-12-13 17:14:24 UTC 
Created attachment 71453 [details]
artifact while corruption was "in progress"
Comment 2 Chris Wilson 2012-12-13 20:41:54 UTC 
should be fixed by

commit b82bfcb54a6af0d1ee17806ef94d9da504cad606
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Tue Dec 4 17:26:47 2012 +0000

    sna/gen6+: Cache the scanout targets separately to avoid override PTE caching

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