[Bug 111202] [Regression]: intel_backlight fails to change eDP1 brightness on Dell Precision 5540 (Coffeelake)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111202

--- Comment #2 from Arcadiy Ivanov <arcadiy at ivanov.biz> ---
Related bugs are:

https://bugs.freedesktop.org/show_bug.cgi?id=111179
https://bugs.freedesktop.org/show_bug.cgi?id=111195

The SSD was was transferred from Skylake Dell Precision 7510 where backlight
worked properly.

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