Ubuntu
kde-workspace package

  1. Bug #862964
  2. Comment #46

Comment 46 for bug 862964

Revision history for this message
In , Thomas-luebking (thomas-luebking) wrote :

The setting is -if- encoded in Qt or set by a global environment variable.
While it actually can be a significant performance boost, this heavily relies on the GPU/driver/CPU combination and the application code (the more QPainter::drawImage() calls you find, the better are you done with the raster engine).

In return applications & widgets being rather tied to an X11 environment can even segfault on this graphicsssystem (the Qt event translator widget & it's usage seems prone to this)

The setting in kwin's advanced compositing setup is btw. not affected by this - XRender means XRender and OpenGL means OpenGL. Only the decoraion and plasma element (buttons, boxes) painting does really align to the graphicssystem.