[Bug 101619] [SKL] DPCD backlight causes black screen on ThinkPad X1 Carbon 4th Gen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101619

--- Comment #8 from Puthikorn Voravootivat <puthik at chromium.org> ---
Maybe the driver has wrong initial brightness level.

Can you try the patch above?

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