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Hi I have created two custom keyboard short cuts as my brightness settings have disappeared since installing Nvidia Driver.

These two short cuts are as follows:

name: brightness_up
command: xbacklight -inc 10
binding: Monitor Brightness Up Key

name: brightness_down
command: xbacklight -dec 10
binding: Monitor Brightness Down Key

However nothing happens when I reboot and attempt to use these commands. I have xbacklight installed as each of these commands work perfectly fine when typed into the terminal.

I have enabled the brightness control on my Nvdia drivers by adding a script: /usr/share/X11/xorg.conf.d/10-nvidia-brightness.conf the contents of which is

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 9400M"
    Option         "RegistryDwords" "EnableBrightnessControl=1"
EndSection

However when I try and use the keyboard shortcuts nothing happens. I thought this may be because they are already mapped in the system so I tried mapping them to shift++ and shift+_ but those bindings also did not work.

Any ideas on how:

A) I can get the system brightness controls to work again.

B) how I can get the custom short cuts to work using xbacklight.

I am running Ubuntu 13.04 on a Late 2009 MacBook 6,1 (Yes I know..., however I am solely using Ubuntu on this device no OS X can be found :D)

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