(In reply to Harry Wentland from comment #7)
> If you didn't say you tried swapping monitors and cables I'd say it was a
> cable issue.
> 
> Are those high refresh rate displays (120Hz+)? If so you might want to give
> what's suggested in this comment a try:
> https://bugs.freedesktop.org/show_bug.cgi?id=102646#c41 It would help us
> diagnose the issue.

While I believe this was directed at Samuel Pitoiset (I don't have high refresh
rate displays), I tried it anyway. Same problem occurs.