Not sure if this will help anyone, but I have identified another problem very similar to the 4870x2 or 4850x2 problems that other people have had. Not sure if it is related or not.
Actually I have the following:
a 4850x2
a single 4850
The motherboard has an ATI 3300 on it.
I can NOT get LINUX 9.5 or 9.4 to work using the 3 4850 GPUs in crossfire; I have the same lockups shown in the screenshots on page one of this thread. I don't remember the last version that worked... it was either 9.3 or 9.2. Windows Catalyst hasn't had problems for awhile and works fine.
Anyway... I've tried everything. Manual install, auto install. Ubuntu repository install. aticonfig this aticonfig that aticonfig the other thing.
I finally took out BOTH the 4850x2 and the 4850 cards and booted from the onboard video card: ATI 3300. The linux Catlyst 9.5 driver boots right up works just fine with no problems as long as the onboard 3300 is the only card in the system.
THEN I installed the a single 4850 card. BOOM. Weird screen and lockup whether I had the DFI-D plugged into the motherboard's 3300 DVI plug OR the 4850's plug. (Obviously changing the BIOS to tell it where to display.) I also disabled the 3300 onboard video in the bios and it still would not work on the single 4850.
This is the same weird screen lock thing that people have seen with 4870x2 and 4850x2 cards; just like xakep posted screen shots of on the first page of this thread.
This happens whether the on board 3300 was enabled or disabled in bios. It might have something to do with me not using the onboard plug; but it DEFINITELY has something to do with plugging in a second video card. (and probably is directly related to the "x2" problem since that is basically the exact same thing as having two cards.)
I'm sure this isn't a lot of new info... but I thought I'd post my results.


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