[Bug 96419] [SKL/APL] vblank not available on crtc 0, ret=-22 (makes X freeze)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96419

--- Comment #7 from Patrik Jakobsson <patrik.r.jakobsson at gmail.com> ---
I can reproduce this on a SKL NUC with DP + HDMI when running the kms_plane
tests on -nightly from today (2016-06-23). About half of the tests fail
consistently. Running with just DP or HDMI works fine, which I find a bit odd
if it's just a matter of waiting for vblank before the pipe is fully on. I'll
look into this some more.

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