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If you have problems with fullscreen applications flickering when desktop effects are ON then you can try the following solution, which was suggested in [https://bugs.kde.org/show_bug.cgi?id=177495 KDE Bug 177495]:
If you have problems with fullscreen applications flickering when desktop effects are '''enabled''' then you can try the following solution, which was suggested in [https://bugs.kde.org/show_bug.cgi?id=177495 KDE Bug 177495]:
* Open ~/.kde/share/config/kwinrc in an editor (where ~ stands for your home directory).
* Press Alt+F2 and run:
* Go to the section [Compositing].
  kwriteconfig --file kwinrc --group Compositing --key UnredirectFullscreen --type bool false
* Add the following line:  
  UnredirectFullscreen=false
* Save the file.
* Apply the changes by pressing Alt+F2 and running:
* Apply the changes by pressing Alt+F2 and running:
  qdbus org.kde.kwin /KWin reconfigure
  qdbus org.kde.kwin /KWin reconfigure


This forces KWin not to use window unredirection but can affect performance of fullscreen OpenGL applications when desktop effects are enabled. Desktop effects can be suspended to prevent performance issues (press Alt+Shift+F12) when running such applications.
This forces KWin not to use window unredirection but can affect performance of fullscreen OpenGL applications when desktop effects are '''enabled'''. Desktop effects can be suspended to prevent performance issues (press Alt+Shift+F12) before running such applications.

Latest revision as of 14:17, 6 June 2010

If you have problems with fullscreen applications flickering when desktop effects are enabled then you can try the following solution, which was suggested in KDE Bug 177495:

  • Press Alt+F2 and run:
kwriteconfig --file kwinrc --group Compositing --key UnredirectFullscreen --type bool false
  • Apply the changes by pressing Alt+F2 and running:
qdbus org.kde.kwin /KWin reconfigure

This forces KWin not to use window unredirection but can affect performance of fullscreen OpenGL applications when desktop effects are enabled. Desktop effects can be suspended to prevent performance issues (press Alt+Shift+F12) before running such applications.