Same problem here DV6183ea Intel core 2 duo with Nvidia geforce go 7400 when press Fn+F7 or Fn+F8 gdm crash & restarts
Feisty herd 4 -- HP Laptops crash when adjusting brightness https://launchpad.net/bugs/80512 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
