Kwin effect blur causes instability problems, especially with docky programs.

[JC]

Binary package hint: kdebase-workspace

Kubuntu 10.10 64bit
Kde effects
The blur itself works well, but my desktop gets VERY laggy and I narrowed it down to the blur effect.
The dock program I use (Docky) gets extremely buggy (as does the desktop in general) with blur.
KPackagekit and Clementine suffer very much from blur.
Specifically, blur causes lagginess, browser glitching, etc.

[JC (nothingness)]

Kde 4.6.2
kernel 2.6.38
opengl 2.1 mesa 7.9-devel
X-server 11.0

[JC (nothingness)]

When I disable Blur and re-enable it, the programs run just fine. After a restart things go back to buggy though.

[Harald Sitter (apachelogger)]

The issue comes from a crappy driver. In more recent versions Kwin should simply refuse to use blur on those drivers.