"Finally, after many years of people asking for this, Linux can
now properly support all known Samsung laptop devices. This means
we can now handle backlight control, wifi button issues,and the
weird "performance mode" keys as well as some of the other function
keys.
"If you have a Samsung laptop, I suggest looking at the driver
in this post on the linux-kernel mailing list, and letting me know
if you have any problems with it or not."