[Bug 65757] [snb pch eDP regression] Screen sometimes remains black after mode change - old fast & narrow link is more stable

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=65757

--- Comment #8 from Daniel Vetter <daniel at ffwll.ch> ---
Just to clarify: The magic to make this work is to run the edp panel power
sequencing calls?

If that's the case I'd vote to quirk this to be an eDP port: In 3.11 we've
refactored all the checks to clearly separate sink-related eDP stuff
(backlight, panel power sequencing) from the differences in the eDP source
ports. So we can freely adjust this without changing anything else.

For the quirk itself there's hopefully a bit in the DPCD telling is it's an eDP
sink, otherwise I guess we'd a dmi new quirk table.

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