[Bug 83497] [BDW IPS] Pipe A FIFO underrun errors with a 4k display

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83497

--- Comment #5 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
Created attachment 105813
  --> https://bugs.freedesktop.org/attachment.cgi?id=105813&action=edit
[PATCH] drm/i915: Don't enable IPS when pixel rate exceeds 95% of cdclk

This patch should implement the appropriate logic to disable IPS when the pixel
rate is too high. Please test and report back.

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