[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 #5 from Arcadiy Ivanov <arcadiy at ivanov.biz> ---
I put a "regression" in the title, because I took an SSD from Dell Precision
7510, put it in Dell Precision 5540 and observed that backlight stopped working
- i.e. something that was working stopped. There is nothing to bisect, because
the loss of functionality occurred with device upgrade, not kernel version
upgrade.

Also, this is Fedora 30, not Ubuntu.

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