Originally posted by suokko
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ATI Radeon KMS vs. UMS With Ubuntu 10.04
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Originally posted by agd5f View PostThe radeon driver side for the pageflipping stuff has not been done yet.
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Originally posted by xeros View PostIs there any progress in pageflipping in KMS for radeons? Any kernel parameter to disable vsync or sth? I would better have some FPS in games between 30 and 60 when my hardware/software could not handle full 60 FPS rather than immediately dropping to 30 instead.
Is there any progress in making a switch/paramter for disabling vsync in KMS for r300g?
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Originally posted by xeros View PostIs there any progress in pageflipping in KMS for radeons? Any kernel parameter to disable vsync or sth? I would better have some FPS in games between 30 and 60 when my hardware/software could not handle full 60 FPS rather than immediately dropping to 30 instead.
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Originally posted by nanonyme View Postvblank_mode environment variable seems to control it for r600g, dunno about r300g. 0 for no vsync, I don't know what the other numbers mean. You might have occasional tearing without it though.
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Yeah, the vblank_mode environment variable doesn't seem to work very well with games. So you're either capped at 60 or 30 fps most of the times. As pointed out before you'll have to modify the ddx to get uncapped fps, but if you do that then you lose your tear-free Xv.
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This works for sure. But after trying it I finally was convinced that the medicine is worse than the illness X D
http://www.phoronix.com/forums/showp...&postcount=122
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Originally posted by agd5f View Postvsync != anti-tearing
As I've said before, the GLX vsync extensions provide tokens for applications to synchronize with. The ddx also does vline waits for updates to the front buffer to avoid tearing. They are not the same.
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