Acer Laptop Bightness and Volume Hotkeys not working!

Mike C. miguelmclara at
Sat Jul 6 22:30:09 UTC 2013

On 07/03/13 01:30, Mike C. wrote:
> On 06/23/13 23:57, CeDeROM wrote:
>> Hey :-) For my Dell laptop the backlight is controlled by hardware,
>> unlike sound keys where you can assign them to use
>> xf86audiovolumeup/down (or similar) to interact with mixer. I would
>> search for automatic backlight hothey that would block manual control,
>> or BIOS settings (like automatic backlight) or maybe new BIOS would
>> fix that problem..?
>> Best regards,
>> Tomek
>> --
> I don't hae any BIOS settings for this... I have the most recent version
> of my bios but this Ultrabooks don't really have many options :)

I tried the xbrightness port, but no luck however I don't really
understand the error:

xbrightness 1.0                                                            
xbrightness:  unable to open default display.

Could this be related to the fact that I've built Xorg with:


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