On Saturday 19 March 2011 17:34:05 you wrote:
> I don't often launch the full KDE DE, so was surprised when I just tried it
> and a pop up said:
> 
> "Compositing was too slow and has been suspended.
> If this was only a temporary problem, you can  "
> 
> I can't see the rest of the message (it's hidden at the bottom of the
> screen).
> 
> How can I troubleshoot this?

Some digging around helped a bit - I switched in SystemSettings/Desktop 
Effects, the Compositing Type from OpenGL to XRender and now it does not 
suspend (although 'wobbly windows' and 'Desktop Cube Animation' are disabled.

In E17 which I use daily the compositing works fine, until I select OpenGL as 
the rendering engine and then it crashes horribly (won't even boot).

I have set up mesa to use gallium (if that makes any odds).  Is there anything 
else I need to configure to improve OpenGL performance (at least to stop it 
crashing)?
-- 
Regards,
Mick