I had the same problems with my MSI (ATI) Radeon HD2600 Pro AGP. I read some place that the 2.6.31 kernel causes the problem and that it'll be fixed in 2.6.32. Since I bought this card, I have been spending an awful lot of time getting it to work, sometimes with success and sometimes without. I have done this under Suse 11.0, 11.1 and 11.2 and Kubuntu 9.04 and 9.10, the latter being totally useless for me so I fell back to 9.04. So I decided to abandon Radeon. Btw, I think the proper driver for this (my) card is the fglrx driver.
Regards,
Tugger
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