Public bug reported:
LG X110 netbook.
Every time when I press the ACPI brightness key up/down, the brightness
is changed two steps at time. It turns out that along xfce4-power-
manager, something else (kernel, BIOS?) also reacts to the button press,
thus resulting to this kind of undesired behavior.
I hacked common/xfpm-brightness.c to always have a step of 0 for the
change and, to show a notification despite the brightness level not
being changed. Also killing xfce4-power-manager completely, gets rid of
the problem. Applying either one of these fixes makes the brightness
control work normally, one step at time.
** Affects: xfce4-power-manager (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1083140
Title:
Brightness is always changed twice
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