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Re: Macintosh LCD brightness control



On Wed, Nov 14, 2012 at 10:03:55PM +1000, adam wolter wrote:
>    Release 6.0.6 (squeeze)
>    i have the PowerPC version installed on a lampShade iMac G4.
>    LCD monitor brightness is controlled by function keys F1 and F2 which have
>    brightness markings.
>    it all works well.
>    i just want to know HOW so i can make similar support in ubuntu.
>    Volume controls work well also and i can find XF86 Keyboard Shortcuts.
>    "xdotool key XF86MonBrightnessDown"  works also but there is no Keyboard
>    Shortcut for it !
>    Can someone tell me how the F1 key is bound to XF86MonBrightnessDown ????
>    please.

Run the following:

$ xev | grep -A2 --line-buffered '^KeyRelease' | sed -n '/keycode
/s/^.*keycode \([0-9]*\).* (.*, \(.*\)).*$/\1 \2/p'

(all one line. The initial $ is to show it's to be run as an ordinary
user).

That should pop up a little window, press Fn+F1 and then FN+F2 and see
what codes you get out. You should get a pair of "Number Function" for
each key.

Next, add the following lines to "~/.Xmodmap":

keycode 123 = XF86MonBrightnessUp
keycode 124 = XF86MonBrightnessDown

(replacing 123 and 124 with the appropriate numbers obtained above). Log
out and restart X (or just reboot) and see if that works.

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