[Bug 97244] [SKL] 5k tiled monitor DP sync issues

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97244

--- Comment #8 from David DeCarmine <hworld at holo-world.com> ---
Same issue here as well. Tried on Fedora 25 on a Dell XPS 15 (9550) laptop and
the Dell 5k monitor (up2715k). It looks exactly like the corruption image that
Tomas Bzatek posted.

It freaked me out at first because the flickering that happened sort of "burned
in" to the monitor. Even when I unplugged it from the laptop it was still
flickering the same image. If anyone else runs into this, just leave it running
at a 4k resolution (or any that doesn't have the corruption issues) and
eventually it fixes itself.

I'm using Skylake i915 CPU/GPU (HD Graphics 530). I confirmed it wasn't
hardware since it works on Windows. After years of Linux I had to revert back
to Windows so that I can use the monitor at its real resolution. =\

Will be watching this issue so I can hopefully bounce back to Linux again. I
can help test/debug as well.

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