I am running Xubuntu 11.10 and only my brightness function keys (Fn + up/down) work. The sound functionality (Fn + left/right) doesn't do anything. The function keys work perfectly on Ubuntu 11.10 and Linux Mint 12. Can anyone tell me what I could do to fix this? What package is used to drive this Fn key functionality (perhaps I could reinstall it).
I am using a Lenovoo E-350 laptop. Thanks in advance.