[Bug 72321] 8086:0412 [HP ENVY TouchSmart 23se-d494 All-in-One Desktop PC] No backlight interface

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Tue Mar 25 08:14:16 PDT 2014


https://bugzilla.kernel.org/show_bug.cgi?id=72321

--- Comment #15 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to lee.joshwa from comment #14)
> After searching further into what you've just posted I've found that I can
> control backlight manually using:
> 
> 'xrandr --output HDMI1 --brightness 1.0'

Confirmed with Chris, this just modifies the gamma curves. If it works for you,
great, but it doesn't actually modify the backlight brightness.

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