[Bug 54781] graphic driver doesn't support brightness changes and can't resume from suspend

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=54781





--- Comment #3 from Petr Bena <benapetr at gmail.com>  2013-03-04 21:20:04 ---
I figured out that submitting a different value to one of drivers actually
change the brightness:

root at petrbena:/home/petanb# echo 3882 >
/sys/class/backlight/intel_backlight/brightness 

there are two of them

lrwxrwxrwx 1 root root 0 Mar  4 22:13 asus-nb-wmi ->
../../devices/platform/asus-nb-wmi/backlight/asus-nb-wmi
lrwxrwxrwx 1 root root 0 Mar  4 22:15 intel_backlight ->
../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-LVDS-1/intel_backlight

for some reason my system is likely using the other one, might be a conflict
with asus-nb-wmi driver?

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