[Bug 93917] [BXT-P /APL] Corruption is seen on eDP with 3 pipes

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93917

--- Comment #3 from Jim Bride <jim.bride at linux.intel.com> ---
[ 2767.011766] [drm:intel_update_cdclk] Current CD clock rate: 288000 kHz

I wonder if we're running into the following (from the B-Spec SKL+ CDCLK_CTL
register description):

Do not use DisplayPort with CDCLK less than 432 MHz, audio enabled, port width
x4, and link rate HBR2 (5.4 GHz), or else there may be audio corruption or
screen corruption.

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