The brightness keys don't work on the UX305 so I managed to bind Ctrl+F5/6 to execute

xdotool key --clearmodifiers XF86MonBrightness{Up/Down}

While this works fine and even shows the visual notification but the whole thing feels a little hacky. Is there a way to bind the shortcut to the actual Fn keys? Xev doesn't do anything when you press Fn+F5/6 so thats that....

  • mchid: No unfortunately Fn+F5 doesn't do anything at all. Even xev doesn't report anything when you press that combo. – tusharkant15 Aug 15 '15 at 8:18
  • so you tried to set this using ccsm? because the other user had the same response from xev but it worked for them using the grab key combo method. – mchid Aug 15 '15 at 8:19
  • 1
    possible duplicate of Asus UX303LA fn brightness keys not working – mchid Aug 15 '15 at 8:21
  • I fixed this on other model of UX303, on UX303UB. I now have your problem trying to use Fn+F7 to turn off screen with xset dpms force standby. – Pablo Bianchi Jan 18 '17 at 2:02

I'm myself a KDE user, so I won't tell you exactly how to change the global shortcuts in Ubuntu, but I think this is what you are actually trying to do. The global shortcut for brightness change is assigned to XF86MonBrightnessUp/Down and you should be able to change it to whatever else you want, e.g. Ctrl+F5/6.

This guide seems to be describing how to do this in Ubuntu: https://help.ubuntu.com/stable/ubuntu-help/keyboard-shortcuts-set.html

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