Bug#620858: xserver-xorg-video-radeon: slow overall performance upon wake-up from suspend
daenzer at debian.org
Tue Apr 5 07:32:10 PDT 2011
On Die, 2011-04-05 at 10:02 -0400, Andres Cimmarusti wrote:
> >>> [ 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?
> > I've just checked this. Yes, it's slow when the number is reported as
> > 1 (which happens both waking up from suspend, and when using
> > vblank_mod=0).
The latter can't really be true like that, as the number of pipe quads
is only probed and printed at initialization and resume time.
> So, this is rather strange. With a vanilla 126.96.36.199 kernel (using
> debian config file to compile + two cpu customizations) the quad
> number is generally reported as 3, but goes to 1 upon resuming from
> With kernel 2.6.38-2 from debian main, quad seems to be 1, but after
> resuming it goes to 3.
So in the latter case, is it slow initially but becomes fast after
Earthling Michel Dänzer | http://www.vmware.com
Libre software enthusiast | Debian, X and DRI developer
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