Ubuntu – Brightness and volume buttons don’t work

14.04brightnesskdetoshibavolume-control

I have a Toshiba Chromebook 2. I installed Ubuntu 14.04.02 few days ago and noticed that my function buttons don't work. I mostly care about the brightness and volume buttons. Is there any solution for this?

Best Answer

Go to the KDE settings ("configure desktop" or "system settings") -> Shortcuts and Gestures -> Global Keyboard Shorcuts.

For volume, go to KMix, click "Volume Down" next to "Decrease Volume", click the box next to "Custom", then hit "Volume Down" button on your chromebook. Do the same with "Mute" and "Volume Up".

For brightness, go to "KDE Daemon". Set "Decrease Screen Brightness" and "Increase Screen Brightness" in the same way.

If the buttons are not detected at all, then it is likely that X11 does not support the buttons.