On Thu, 2009-12-10 at 00:45 +0100, Ancoron Luciferis wrote: > > I have a machine with two user accounts under Kubuntu 9.10 and the > performance difference I am experiencing is measurable. The first user > account (set up during installation time) works good. Glxgears is around > 4000 FPS, video playback is fine, compositing is fine (especially the > desktop cube is fast as hell and really smooth). > > On the other hand there is a second user account (this one is not in the > admin group but basic setup is the same). In that user account I get > only around 2700 FPS, compositing works fine (the cube is still that > fast) but moving windows around is dead slow and video playback is NOT > "tear-free". The rather strange thing is that it doesn't depend on video > source frame size or codec or scaled frame size, the playback is just > dropping frames especially when there is a lot of movement. > > Turning off the compositing results in a fast user experience but since > it is fast with compositing for the first user I expected it to be the > same for the second one. > > CPU usage is not the problem as the quad-core machine is idling around > between 70% and 90% although Xorg is between 30 and 50% and mplayer > between 1% and 26% (peeks up to 47%) when watching a movie. > > System: > - - AMD Athlon II X4 620 > - - 4GB RAM > - - Radeon X1950XTX > - - Dell 3007WFP-HC 30" @ 2560x1600 > > This doesn't make sense for me at all. > > Can someone shed some light on this?
Have you tried comparing e.g. the glxinfo output between the two accounts? -- Earthling Michel Dänzer | http://www.vmware.com Libre software enthusiast | Debian, X and DRI developer _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
