[Bug 95176] LCD flickering on Thinkpad T440p (Haswell) with kernel 4.6-rc4 (PSR enabled)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95176

--- Comment #37 from Calvin Walton <calvin.walton at kepstin.ca> ---
I've confirmed (with watch cat /sys/kernel/debug/dri/0/i915_edp_psr_status)
that PSR is still being activated on my T440p with
https://patchwork.freedesktop.org/series/8046/ applied.

I'd like to give it another day or so of testing to make sure, but it seems
like the flicker on the internal screen is gone.

I'm presently using this system docked ("Ultra" dock with internal DP hub) with
multiple external DP & HDMI monitors, and the internal screen disabled, and I'm
not seeing any issues on the external screens like Dmitry has. I'll give it a
try with the internal display enabled to see if I hit the same thing. I would
imagine the corrupted display on external monitor is probably unrelated to this
eDP PSR issue, though.

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