Bug#390271: Resizing and scrolling very slow with r200
On Tue, 2006-10-03 at 20:15 -0400, David Nusinow wrote:
> On Tue, Oct 03, 2006 at 02:23:33PM +0200, Xavier Bestel wrote:
> > On Tue, 2006-10-03 at 13:53 +0200, Michel Dänzer wrote:
> > > Assuming you're using XAA with Option "XaaNoOffscreenPixmaps", that
> > > effectively disables acceleration for anything but the actual
> > > compositing done by compiz.
> >
> > Yet Another Option I have to remember to prune when it's no more
> > useful...
>
> Unfortunately, this is an issue with the ati driver, but one best solved
> upstream. It's really an issue with all drivers, but the ati one has a ton
> of options. It'd be nice if it was more clever about using those options
> when necessary. I currently have no idea how feasible this is in reality
> though.
Note that this is an XAA option, not a driver option. The driver doesn't
have the information to decide when to disable offscreen pixmaps with
XAA.
In general, there are only driver options for things that can't be
determined automatically in all cases, and even then the default value
should work in the majority of cases. If you're aware of radeon driver
options that violate these principles and have ideas how to improve
them, your upstream bug reports will be much appreciated.
--
Earthling Michel Dänzer | http://tungstengraphics.com
Libre software enthusiast | Debian, X and DRI developer
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