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[Bug 531372] Re: [Radeon 9200 PRO] desktop environment is slow when KMS is enabled

 

I just found out some interesting things: I installed new kernel from
here:http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-next/2010-03-02/
and added xorg-edgers to repositories(and updated system). I tested
graphics with new kernel and old kernel(2.6.32-16). When KMS was
enabled, glxgears always showed about 510 FPS(with new and old kernel).
But when I disabled KMS I got 1200 FPS with new kernel, but gears did
not show, just black window-strange. With old kernel nothing changed(720
FPS).

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[Radeon 9200 PRO] desktop environment is slow when KMS is enabled 
https://bugs.launchpad.net/bugs/531372
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