Comment 37 for bug 935778

jowi: I've got one more thing I'd like for you to test, if possible. It's a bit of a guess based off of an observation, but I'd like to know if it makes a difference.

Please remove toshiba-acpi-dkms and install the kernel from the link below. Then reboot and see if there's any change in the backlight behavior following suspend. Thanks!

http://people.canonical.com/~sforshee/lp935778/linux-3.2.0-22.35~lp935778v201204041419/