https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #26 from kb@spatium.org --- (In reply to Christian König from comment #25)
You could try to artificially limit ref_div_max or fb_div_max until you get a stable signal once more. Maybe this will yield some more light on the root cause of the issue.
Can you give me some details - how to do this?
Do you think change of graphics card would resolve the issue?
Well, most likely yes.
But the new kernel seems to work better for some people, but has regressed for you. So I would really like to create a solution that works for everybody.
Right now I switched to catalyst which seems to work and allows me to use new kernel. But since apparently my card is "legacy" I had to downgrade to xorg server 1.12 :-|