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[ubuntu] Lower fps in GLXgears. Problem with animations in gnome. [ATI 4250]

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http://ubuntuforums.org – Hi, I'm having an issue with animations sometimes stuttering in Gnome Shell and also stuttering animations in KDE. Hardware is AMD Phenom 965BE at stock clock of 3.4ghz 4 cores, 4GB RAM, ATI IGP 4250 (512mb shared) on GA-880GM-d2h. Linux Ubuntu 13.04 beta 2 running Gnome 3.8. I noticed that a lot of the time, animations like switching windows from the Overview would be smooth. But some of the times, they would stutter a bit when choosing new window, but not all the time. So I ran glxgears without vertical sync and found that it would run at 1903 fps and lower but would drop down to 120 fps wit (Hardware)