I also have this problem on my X60s. Fn +F7 works in Grub-menu, during Windows startup and in Windows but as soon as the Ubuntu kernel has booted it stops work. I can get it to work in Clone-mode.
I also have this problem on my X60s. Fn +F7 works in Grub-menu, during Windows startup and in Windows but as soon as the Ubuntu kernel has booted it stops work. I can get it to work in Clone-mode.