[Bug 96229] [IGT] [BXT-P] some kms_flip subtest fail due to [i915]] *ERROR* too many voltage retries, give up

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96229

--- Comment #4 from Maarten Lankhorst <bugs at mblankhorst.nl> ---
I've seen this happen a lot.

On my broadwell with DP-MST:

[  118.613058] kms_flip: starting subtest render-flip-vs-modeset-interruptible
[  124.607774] [drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* too
many voltage retries, give up
[  124.642633] [drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* too
many voltage retries, give up
[  124.678285] [drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* too
many voltage retries, give up
[  124.714072] [drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* too
many voltage retries, give up
[  129.865518] [drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* too
many voltage retries, give up
[  144.650761] [drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* too
many voltage retries, give up
[  191.758122] kms_flip: exiting, ret=0

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