[systemd-devel] [PATCH] backlight: do nothing if max_brightness is 0

[Tom Gundersen]

On Wed, Apr 2, 2014 at 8:20 PM, Thomas Bächler <thomas at archlinux.org> wrote:
> Am 27.03.2014 23:41, schrieb Thomas Bächler:
>> On virtually any newer Asus mainboard, the eeepc-wmi driver is loaded.
>> It exposes a backlight device despite the lack of any physical backlight
>> devices. This fake backlight device has max_brightness set to 0. Since
>> the introduction of the clamp_brightness function, systemd-backlight
>> tries to write '1' to brightness and fails.
>>
>> This patch changes systemd-backlight to exit gracefully when
>> max_brightness is 0 before performing any action. This affects
>> both the load and save actions.

Applied. Thanks!

Cheers,

Tom