[Bug 55161] Backlight Software control is acting wrong

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=55161





--- Comment #9 from Jani Nikula <jani.nikula at intel.com>  2013-03-25 12:54:34 ---
(In reply to comment #7)
> the patch had no effect :(

FWIW the patches shouldn't have much effect on how your backlight actually
works. They should merely report more consistent results from the sysfs files.

Note that you're cating the cached "brightness" value. You might get more
interesting information by including the "actual_brightness" sysfs file too,
which is supposed to be the value queried from the hardware. (Which it
currently isn't in intel_backlight, but the second patch suggested by Daniel
fixes that.)

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