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I've just installed Ubuntu 11.10 (but this problem also appears at 11.04), on my HP g62 laptop, and unfortunately none of the function keys work.

Volume, brightness etc, how can I made them work under Ubuntu?

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I found that the "special" keys worked better when you turned off Action Key mode in the BIOS (on a G72 - presume it's similar) - you have to use the fn key in conjunction, but the volume and media keys started to work. As the answer here explains, currently fn-F2 and fn-F3 don't seem to be registered by the kernel. –  Adrian Jan 4 '12 at 21:30

1 Answer 1

Fn Brightness Keys - Workaround Currently it is impossible to map the FN keys. Therefore, two utilities for mapping alternative keys are needed so that screen brightness can be adjusted. From terminal:

sudo apt-get install xbacklight Download Ubuntu Tweak from here and install it. Now open Ubuntu tweak (Application -> System tools) go to the appropriate section (Personal -> Shortcut) and set the combination that you want for example

Ctrl+UP with:

xbacklight -inc 10 and Ctrl+DOWN

xbacklight -dec 10 To increase and decrease the screen's brightness

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