Enable global keys (hot-keys) in Ubuntu on Asus K53
On Asus K53 most of the hot-keys are not working with the default installation of Ubuntu 11.04 with kernel 2.6.38-8, however there is a package available that will enable them, here are instructions on how to perform that:
sudo apt-get install git (unless you already have git installed)
git clone git://git.iksaif.net/acpi4asus-dkms.git
sudo make install
sudo modprobe asus-nb-wmi (this command will load the newly installed module)
After every kernel update the above will be erased and you will need to re-do it every time until it is included in a kernel version at a later stage. To make it easier create a .deb package which will be easier to install.