Created attachment 17258 [details] Xorg.log Hi, I have display output problems with a r520 card. I have several problems, but let's start with the first one: I have attached a NEC LCD panel with 1600x1200 pixels at the DVI-1 output. The monitor flickers every few seconds as if it will loose sync for one frame. Also there are many coloured horizontal distortions on the screen. These are horizontal often strippled lines about 10 to 50 pixels (I guess) in length, coloured red or blue. Attached is the current Xorg.0.log. What else do you need to help? Thanks in advance. Mathias Fröhlich
I've just committed some adjustments to the pll selection function. Can you test again with ati from git master?
Thanks Alex, That RADEON: PLL tweaks commit helps a lot. The display no longer looses sync. Now the driver is at least usable. What is still there are, now shorter horizontal and now mostly green stripled lines that appear on the screen. So this effect has improved too. It would be good if we can get rid of them too. Also, apart from the sync problems on DVI-1, I do not see any picture on DVI-0. Shall I open a new bugid for that, or shall I add more detailed comments to the current one? Greetings and Thanks Mathias
(In reply to comment #2) > Thanks Alex, > > That RADEON: PLL tweaks commit helps a lot. > The display no longer looses sync. > Now the driver is at least usable. > great! > What is still there are, now shorter horizontal and now mostly green stripled > lines that appear on the screen. So this effect has improved too. It would be > good if we can get rid of them too. > yes. > Also, apart from the sync problems on DVI-1, I do not see any picture on DVI-0. > Shall I open a new bugid for that, or shall I add more detailed comments to the > current one? yes, please file that as a separate bug.
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