Bug#568111: xserver-xorg-video-radeon: no KDE4 compositing/desktop effects after suspend-to-disk

[Brice Goglin]

On Tue, Feb 02, 2010 at 04:05:13PM +0100, Marc Haber wrote:
> Package: xserver-xorg-video-radeon
> Version: 1:6.12.4-3
> Severity: normal
> 
> Hi,
> 
> first the good news: My Notebook now supports KDE4 compositing and
> desktop effects. Most of the effects work just fine.
> 
> Now the bad news: Compositing disables itself after suspend-to-disk
> and resume and it does not seem to be possible to re-enable it (it
> immediately flicks back to "disabled"). Logging out and re-starting
> the X server seems to solve the issue; this bug report was written
> after such a restart with compositing enabled again.

Can you try 6.12.191 from experimental with KMS enabled?
http://bgoglin.livejournal.com/19346.html

Brice