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List:       kde-bugs-dist
Subject:    [kwin] [Bug 331599] Kwin malfunction with desktop effects
From:       Mateusz <mateusz.nowak () starnettelecom ! pl>
Date:       2014-02-28 13:45:12
Message-ID: bug-331599-17878-J3QxNaBQqd () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=331599

--- Comment #2 from Mateusz <mateusz.nowak@starnettelecom.pl> ---
W dniu 28.02.2014 11:40, Thomas Lübking pisze:
> https://bugs.kde.org/show_bug.cgi?id=331599
>
> --- Comment #1 from Thomas Lübking<thomas.luebking@gmail.com>  ---
> your chip(/driver combo) does not support OpenGL3 - the crash does only happen
> when trying to activate it and the black windows are a separate issue?

It seems that the problem is in OpenGL in general. Not working any of it 
(1.2, 2.0 or 3.1). Surprisingly XRender works just fine (of course it 
doesn't support 3D effects).

Regarding the "black windows" problem - it stopped to happen (at least 
for few hours now) after I moved ~/.kde directory (I've had config there 
since KDE 3.x). "Black windows" effect started to show itself - 
regardless of what I was doing (although switching between many windows 
and browser tabs seemed to accelerate this problem). When it happened I 
couldn't even open K-menu - I didn't see it panel - and any new opened 
window was pitch black.


Before updating, OpenGL works fine. My configuration was like that (from 
old kwinrc file):

[Compositing]
AnimationSpeed=3
Backend=OpenGL
Enabled=true
GLColorCorrection=false
GLCore=true
GLLegacy=false
GLPreferBufferSwap=a
GLTextureFilter=2
GraphicsSystem=raster
HiddenPreviews=5
OpenGLIsUnsafe=false
UnredirectFullscreen=false
XRenderSmoothScale=false


BTW I am using Intel i915 mainboard with integrated graphics.



> please run (in konsole)
>     kwriteconfig --file kwinrc --group Compositing --key GLCore false
> then reboot (really)

Done. OpenGL still doesn't work (2.0 or 1.2).

> If OpenGL compositing works afterwards, please
> - do not try to enable GL3
> - attach the output of "QT_SELECT=qt4 qdbus org.kde.kwin /KWin
> supportInformation"
>

How can I do this?

Regards,
Mateusz Nowak

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