On Thu, 2006-10-05 at 19:33 -0400, David Nusinow wrote: > On Wed, Oct 04, 2006 at 10:30:43AM +0200, Michel Dänzer wrote: > > 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. > > I wonder if patching the server to automatically enable this when radeon is > loaded until we have a good fix is worthwhile...
It would be a big performance penalty for people using XAA but not a compositing manager, i.e. probably the majority for some time to come. -- Earthling Michel Dänzer | http://tungstengraphics.com Libre software enthusiast | Debian, X and DRI developer
