Comment 69 for bug 1826125

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In , Ville-syrjala-e (ville-syrjala-e) wrote :

[ 4.550517] [drm:intel_dp_hpd_pulse [i915]] ESI: 41 00 00 00 00 00 00 00 00 00 00 00 81 01

According to that the sink thinks everything is fine, so no idea why generates short hpds.

Could be some kind of PSR fail. Please try passing i915.enable_psr=0 to the kernel cmdline.