Bug#620858: xserver-xorg-video-radeon: slow overall performance upon wake-up from suspend

[Michel Dänzer]

On Mon, 2011-04-04 at 13:45 -0400, Andres Cimmarusti wrote: 
> Package: xserver-xorg-video-radeon
> Version: 1:6.14.0-1
> Severity: normal
> 
> Upon resuming from suspend, overall performance and responsiveness of my 
> desktop is incredibly degraded. I'm not sure what is causing this, but 
> restarting X brings things back to normal. I'm using Mesa 7.10 which now 
> locks glxgears to the refresh rate of the monitor, normally I get a 
> value very near 60 FPS(Hz), but upon resuming I get 30 FPS. It's like 
> the refresh rate of my monitor gets messed up after resuming. I'm using 
> a vanilla kernel 2.6.37.6. But have seen this behaviour with 2.6.38 in 
> main.

[...]

> [    6.394262] [drm] radeon: 3 quad pipes, 1 z pipes initialized.

[...]

> [ 1558.717663] [drm] radeon: 3 quad pipes, 1 z pipes initialized.

[...]

> [ 2183.658014] [drm] radeon: 1 quad pipes, 1 z pipes initialized.

The kernel radeon driver isn't consistently reporting the number of quad
pipes. Does the slowness correspond to the number being reported as 1?


-- 
Earthling Michel Dänzer           |                http://www.vmware.com
Libre software enthusiast         |          Debian, X and DRI developer