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#1 2014-12-29 10:02:27
- kiarash
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- Registered: 2014-12-29
- Posts: 2
[SOLVED] Brightness keys not being detected
I am running Arch Linux on an Asus UX32LN.
Setting display brightness by echoing to /sys/class/backlight/intel_backlight/brightness works, but when I tried to bind it to FN+F5/F6 keys I realized those keys don't trigger any actions.
I checked generated scan codes using xev and showkey but when I press Fn+F5/F6 nothing is logged. Other Fn keys like multimedia keys are working quite well.
Also installing/reinstalling xf86-input-keyboard didn't help, if that's somehow related.
Last edited by kiarash (2014-12-30 12:57:26)
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#2 2014-12-29 11:31:18
- toz
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- Registered: 2011-10-28
- Posts: 513
Re: [SOLVED] Brightness keys not being detected
Try the "acpi_osi=" kernel parameter.
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#3 2014-12-29 14:21:47
- Head_on_a_Stick
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- From: The Wirral
- Registered: 2014-02-20
- Posts: 8,999
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Re: [SOLVED] Brightness keys not being detected
More options here:
https://wiki.archlinux.org/index.php/Backlight
Jin, Jîyan, Azadî
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#4 2014-12-30 02:37:55
- TheSaint
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- From: my computer
- Registered: 2007-08-19
- Posts: 1,536
Re: [SOLVED] Brightness keys not being detected
Dual video card, see bumblebee troubleshooting whether it's of any help.
do it good first, it will be faster than do it twice the saint 
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#5 2014-12-30 12:56:49
- kiarash
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- Registered: 2014-12-29
- Posts: 2
Re: [SOLVED] Brightness keys not being detected
Thanks! "acpi_osi=" parameter solved the problem, though I only have 10 levels of brightness now. Marking as solved.
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#6 2014-12-30 13:59:39
- TheSaint
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- From: my computer
- Registered: 2007-08-19
- Posts: 1,536
Re: [SOLVED] Brightness keys not being detected
Be clearer.
Which one?
Somebody out there will find it useful.
do it good first, it will be faster than do it twice the saint
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