[Bug 94087] eDP panel exhibits sparse random noise and flickering (link issue), forcing DP DDI profile helps [Lenovo T450s]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94087

--- Comment #8 from Alexander Schremmer <alex at alexanderweb.de> ---
"You can always override the eDP voltage swing by setting a module parameter

i915.edp_vswing=2"

This was not working before the patch you attached for BDW. Now it should work.

I gathered a VBT of an older BIOS update for the same model (with a different
panel, maybe). How would I know that it also enforces normal vswing? To me,
block_27[0xec] seems all zero as well. Is not that used as a low_vswing
indicator?

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