[Bug 91269] [SKL] Bisected - Black screen when booting

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91269

--- Comment #9 from Gavin Hindman <gavin.hindman at intel.com> ---
Have you tried to pass either i915.edp_vswing=1 or =2 as a boot option?  This
is a driver workaround for incompatible panel vswing values in the default uEFI
VBT.  This seems to be bouncing in and out randomly per uEFI release.

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