I have a laptop with a busted backlight, so the screen doesn't work.
After loading up Ubuntu (first time on this computer), I try doing the function+F5(my video output key), and it doesn't switch over.

Does it work differently in Ubuntu? I can tell that Ubuntu's loaded up and ready to go by the taskbar in the upper portion of the screen and all (the backlight is broken but I can very faintly see what's on the screen).

Anyway, if anyone has any suggestions that'd be sweet.