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Useful especially to save your battery. First off download this program:
http://code.google.com/p/vaio-f11-linux/issues/detail?id=6#c10
extract and compile it
make && sudo make install
This will install kbd_lit in /usr/local/sbin, which has two options:
- -d Disable backlight
- -e Enable backlight
this command must be run with root privileges (sudo).
Since it’s inconvenient to open a terminal every time, I associated this program to the magnify function keys (F9 and F10), which on my laptop look like this:
if you want this shortcut too, paste this into a terminal:
sudo -s cd /etc/acpi wget -c http://dl.dropbox.com/u/737114/vpcs11e7e/keyboard-backlight.tar.gz tar -xzvf keyboard-backlight.tar.gz rm keyboard-backlight.tar.gz service acpid restart
This way Fn+F9 will shut the light off and Fn+F10 will turn it on again.
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Source: http://code.google.com/p/vaio-f11-linux/issues/detail?id=6
