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List:       kde-bugs-dist
Subject:    [kwin] [Bug 323688] Slide effect flicker after change to OpenGL 2.0 in desktop effects.
From:       Thomas Lübking <thomas.luebking () gmail ! com>
Date:       2013-08-19 12:08:08
Message-ID: bug-323688-17878-lPRIwb43us () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=323688

--- Comment #4 from Thomas Lübking <thomas.luebking@gmail.com> ---
(In reply to comment #3)

> 1) The issue has survived multiple logout / logins and reboots.
Just to leave absolutely no misunderstanding about this:
Once you encountered the issue, not even rebooting resolved it (ie. it was
there despite you didn't try to reselect GL3 again)?

> 2) The issue is there when selecting [...] Xrender
Do you use "one activity per virtual desktop"?
(Plasma setting to eg. have different wallpapers on different VDs)

Otherwise I'd rather suspect another effect to kick in here.
Please  deactivate all other effect plugins (translucency, fade, desktop grid,
...) and see whether the flicker still happens.

> Selecting GL3 causes Kwin to crash and desktop effects [...]
> If I simply select GL2 AFTER the crashes with GL3.1 occur then Kwin will crash when \
> activating desktop effects again with GL2.

Please attach the respective backtraces, eventually error messages in
Xorg.0.log or dmesg after this.

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