I have installed Ubuntu 12.04 and I think everything is working except for the brightness controls of the laptop. Please answer.
I have a same problem and this is the only solution I know...that is to assign different combo for the brightness,as
2) Open Compiz
3) Go to commands and add these lines:
In commandLine1 and commandLine2 respectively.
Now click on Key Bindings Tab and Click on disabled button
On the pop-up box click Grab Key Combination and choose desired keys (I use Super(win)+f4, Super(win)+f3)
Don't forget to check Enable Commands on left hand panel
I hope it helps :-)
If you come across the keyboard layout for hp g62 please do post it...I too need it :-P