Works fine with my DVI screen (don't have HDMI to try though, and I never tried VGA for that matter either). I did have to make sure radeon was loading before kdm, otherwise I would get no signal.
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Try to Plugin you Display on the other Output. If i connect my display at DVI-0 i have no signal but if i use DVI-1 all is fine.
Originally posted by salose View PostI can confirm this as well. With KMS enabled there's essentially no output on DVI after grub (as soon as the drive loads I assume).
With radeon.modeset=0 everything works.
This sucks, as I've understood that KMS is required for vsync to work with xv (to get tear free video)?
As I?m a linux noob, please point me to where I should report this, and what I need to include in the bug report.
What is weird is that if I SSH to the box the X logs look fine, i.e correct EDID data is read from the projector etc and there are no errors.
I tried various radeon driver options without success.
I'm running 2.6.33 and latest from xorg-edgers ppa.
Should I just go out and buy a Nvidia to get my Mythbox running?
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I have KMS enabled for months now (9550 Radeon card), and I have to say I'm quite satisfied: desktop effects are working almost perfect, watching videos is excellent, my brother even plays Counter Strike, smaller memory footprint is also a benefit... Of course, I compile xf86-video-ati driver and mesa stack every once in a while from git.
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The 9550 is quite an old card (I hasten to add I ran one happily using radeonhd across multiple installed distros until quite recently, because it simply can't cut the mustard for modern pc gaming)
The question is, what does this new driver do for more recent ati products? If anything...
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Originally posted by pejakm View PostI have KMS enabled for months now (9550 Radeon card), and I have to say I'm quite satisfied: desktop effects are working almost perfect, watching videos is excellent, my brother even plays Counter Strike, smaller memory footprint is also a benefit... Of course, I compile xf86-video-ati driver and mesa stack every once in a while from git.
I don't use 3D softs so I don't know if there's any difference, probably a hit from DRI2 as far as I understood.
For all uses apart from 3D games and software, it's perfectly usable.
But I suppose this has to do with the version of libdrm and mesa shipped by the distros.
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Originally posted by rvdboom View PostSame here. I have 4 systems using self-compiled 2.6.33 kernels, xf86-video-ati, mesa and libdrm from git on Slackware systems and everything works fine with RS780 and RS420 chips, compositing desktop and video work quite well.
I don't use 3D softs so I don't know if there's any difference, probably a hit from DRI2 as far as I understood.
For all uses apart from 3D games and software, it's perfectly usable.
But I suppose this has to do with the version of libdrm and mesa shipped by the distros.
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KMS kills 2D performance all across the board. However, it's not that bad with older chips (my 9800pro and 200m for example, and I would guess any pre r5xx chip as well); with those it remains rather usable. With my hd4850 KMS really screws things up (I will assume it's the same for any r6/7xx chip) as it is much much slower than UMS and certain applications are just unusable (Firefox being one).
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