[Bug 90043] [BDW DP] 4k at 60Hz pipe underruns -> corruption & hangs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90043

--- Comment #12 from Marat Bakeev <hawara at gmail.com> ---
(In reply to Ander Conselvan de Oliveira from comment #11)
> The following two patches were merged to drm-intel-nightly after that above
> comment was made. Could you check if you can remove the i915.enable_ips=0
> flag with those?
> 

With linux-drm-intel-nightly 20150810 (Linux 4.2.0-1-drm-intel-nightly) it is
possible to boot and use the monitor without the i915.enable_ips=0 flag.
But the monitor now defaults to 30 hz refresh rate, although it is still
possible to switch it to 60hz through xrandr (but it's a small annoyance).

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