Comment 0 for bug 647467

Using maverick on amd64, fully upgraded, KDE desktop-effects do not work since some time.

When trying to enable them via kwin config I get this information:

"Desktop effects are not available on this system due to the following technical issues:"

But no issue is listed.

Log when launching kwin manually:

kwin() KWin::Workspace::setupCompositing: Initializing OpenGL compositing
kwin() KWin::Workspace::setupCompositing: KWin has detected that your OpenGL library is unsafe to use, falling back to XRender.
kwin(): Failed to initialize compositing, compositing disabled

For debugging I tried to run glxgears, which work,s but only at 280 fps

Xorg log shows nothing suspicious.