[Bug 111202] Intel_backlight fails to change eDP1 brightness on Dell Precision 5540 (Coffeelake)
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Wed Jul 31 09:48:41 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=111202
Jani Nikula <jani.nikula at intel.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |NOTABUG
--- Comment #10 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to Arcadiy Ivanov from comment #8)
> I can confirm that removing `i915.enable_dpcd_backlight=1` fixes the
> brightness issue.
Not a bug then. Displays have different ways of controlling the brightness, and
you can't assume they are all the same.
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