The reverted radeon patchset didn't help for long. Actually I don't know why it worked at all, but probably the HW was just breaking down slowly. What finally helped was replacing my DisplayPort to DVI adapter for a new one. This doesn't seem to be a software problem, as the latest kernel works again without a patch.
The reverted radeon patchset didn't help for long. Actually I don't know why it worked at all, but probably the HW was just breaking down slowly. What finally helped was replacing my DisplayPort to DVI adapter for a new one. This doesn't seem to be a software problem, as the latest kernel works again without a patch.