Bug 293385 - glsl should be disabled for the 945G because it's slow and broken
Summary: glsl should be disabled for the 945G because it's slow and broken
Alias: None
Product: kwin
Classification: Plasma
Component: compositing (show other bugs)
Version: 0.2
Platform: Ubuntu Linux
: NOR normal
Target Milestone: 4.10
Assignee: KWin default assignee
Depends on:
Reported: 2012-02-05 19:08 UTC by shani
Modified: 2013-01-07 14:39 UTC (History)
0 users

See Also:
Latest Commit:
Version Fixed In: 4.10

pic of effect (981.27 KB, image/png)
2012-02-05 19:16 UTC, shani
pic 2 of effect (162.98 KB, image/png)
2012-02-05 19:17 UTC, shani
output of kwin --replace & (844 bytes, text/plain)
2012-02-06 17:33 UTC, shani

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Description shani 2012-02-05 19:08:00 UTC
Version:           0.2
OS:                Linux

mainlly window flip switch and cover switch and desktop cube 

Reproducible: Always

Steps to Reproduce:
enable desktop effect with openGL rendering

Actual Results:  
in the attachment

Expected Results:  
crisp transition and rendering

OS: Linux (i686) release 3.2.0-14-generic
Compiler: gcc

Intel Corporation Mobile 945GM - video card
xserver-xorg-video-intel version 2:2.17.0-1ubuntu3 (driver)
Comment 1 shani 2012-02-05 19:16:40 UTC
Created attachment 68536 [details]
pic of effect
Comment 2 shani 2012-02-05 19:17:42 UTC
Created attachment 68537 [details]
pic 2 of effect
Comment 3 Thomas Lübking 2012-02-05 19:49:06 UTC
looks like a driver issue (wrong texture transformation)
please open konsole, run "kwin --replace &" and post the output and also your kde version
Comment 4 shani 2012-02-06 17:33:51 UTC
Created attachment 68566 [details]
output of kwin --replace &
Comment 5 shani 2012-02-06 17:34:43 UTC
i fiddled with system settings ... disabled openGL 2 shaders and it went away.

thanks anyway
Comment 6 Thomas Lübking 2012-04-14 14:56:57 UTC
seeing this as well, also glsl blurring is HORRIBLY slow (compared to the ARB variant) on a 945G - maybe disable it in glplatform?
Comment 7 Thomas Lübking 2013-01-03 20:25:04 UTC
This should be fixed by e1d7bfa55663e3fb017bd088c9292e134327d9ce