Bug 81401 - [DRI3 kde] cursor duplication in gtk apps
Summary: [DRI3 kde] cursor duplication in gtk apps
Status: RESOLVED DUPLICATE of bug 81551
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/intel (show other bugs)
Version: git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Chris Wilson
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-07-15 23:50 UTC by Tobias Klausmann
Modified: 2014-07-23 16:17 UTC (History)
2 users (show)

See Also:
i915 platform:
i915 features:

Attachments
cursor duplication (7.20 KB, image/png)
2014-07-15 23:50 UTC, Tobias Klausmann 		no flags Details
Neuter explicit fencing (3.12 KB, patch)
2014-07-22 07:43 UTC, Chris Wilson 		no flags Details | Splinter Review
View All

Description Tobias Klausmann 2014-07-15 23:50:27 UTC 
Created attachment 102874 [details]
cursor duplication

Hey,
starting with DRI3 i have some render corruptions with gtk apps. My cursor gets duplicated every time it moves along a line.
Comment 1 Chris Wilson 2014-07-16 06:03:11 UTC 
Are you sure DRI3 is involved? Does the issue go away with

Section "Device"
  Identifier "Intel"
  Option "DRI" "2"
EndSection

If so, this is likely to be a BufferAge problem in mesa or mutter.
Comment 2 Tobias Klausmann 2014-07-16 14:05:24 UTC 
Yes this does make it go away (as disabling desktop effects with kwin), oops :/
Comment 3 Chris Wilson 2014-07-17 06:54:51 UTC 
Hmm, I wonder if it is possible to disable buffer-age...

You can export: KWIN_USE_BUFFER_AGE=0
Comment 4 Tobias Klausmann 2014-07-17 13:05:01 UTC 
(In reply to comment #3)
> Hmm, I wonder if it is possible to disable buffer-age...
> 
> You can export: KWIN_USE_BUFFER_AGE=0

I'm afraid, no, this has no effect.
Comment 5 Chris Wilson 2014-07-17 14:59:02 UTC 
Just to be sure, you did set that in kwin's environmnent?
Comment 6 Tobias Klausmann 2014-07-17 15:43:26 UTC 
Well, to be honest i'm not sure, just did

"KWIN_USE_BUFFER_AGE=0 kdm" hope this is sufficent...
Comment 7 Chris Wilson 2014-07-22 07:43:33 UTC 
Created attachment 103263 [details] [review]
Neuter explicit fencing
Comment 8 Tobias Klausmann 2014-07-23 02:00:50 UTC 
This indeed resolves the issue! (And another one i found in the meantime in Firefox). Please upstream if possible, thanks!
Comment 9 Chris Wilson 2014-07-23 08:05:18 UTC 

*** This bug has been marked as a duplicate of bug 81513 ***
Comment 10 Tobias Klausmann 2014-07-23 13:41:50 UTC 
You are sure this is 81513? More likely to be 81551 i guess :)

*** This bug has been marked as a duplicate of bug 81551 ***

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