Bug 308649 - kwin_gles compositing is broken with Qt 4.8.3
Summary: kwin_gles compositing is broken with Qt 4.8.3
Status: RESOLVED DUPLICATE of bug 308385
Alias: None
Product: kwin
Classification: Plasma
Component: compositing (show other bugs)
Version: 4.9.2
Platform: Ubuntu Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL: http://i.imgur.com/m297B.jpg
Keywords:
Depends on:
Blocks:
 
Reported: 2012-10-19 11:06 UTC by Rohan Garg
Modified: 2012-10-19 11:55 UTC (History)
1 user (show)

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Description Rohan Garg 2012-10-19 11:06:52 UTC 
When using Qt 4.8.3 with kwin_gles all hell breaks loose. When typing into text boxes in a IRC client I get no feedback, however, pressing carriage return sends the text to the IRC channel

I see alot of tearing and artifacts on the screen as demonstrated by the screenshot linked.

Reproducible: Always

Steps to Reproduce:
1. Install kwin_gles
2. Use kwin_gles with Qt 4.8.3

Actual Results:  
Artifacts on screen, screen tearing, etc etc

Expected Results:  
Would have expected things to just work

This seems to be a regression since kwin_gles works just fine with Qt 4.8.2
Comment 1 Martin Flöser 2012-10-19 11:30:54 UTC 
Sure that it is related to Qt and not related to Mesa 9 like all the other reports we have here about the huge breakage which happened in Kubuntu 12.10 with Mesa 9?
Comment 2 Rohan Garg 2012-10-19 11:37:00 UTC 
Now that you mention it, I think it could be mesa 9 since it seems to have upgraded along with Qt on 12.04.

Downgrading to mesa 8 to check right now
Comment 3 Rohan Garg 2012-10-19 11:45:27 UTC 
Sigh, seems to be an issue due to the mesa 9 upgrade that happened this morning for me.
Goes away once I downgrade to mesa 8.
Comment 4 Thomas Lübking 2012-10-19 11:55:42 UTC 
welcome to the club

*** This bug has been marked as a duplicate of bug 308385 ***