Toshiba L505D S5983, downgraded to XP for a friend. I understand Toshiba should support this problem, or maybe not, but have read everything I can get my hands on with no avail. I'm just hoping someone has heard of this problem before.
Installing Win 7 and installing the display drivers the Fn F6/F7 adjusts the brillance perfectly.
Installing Win XP SP3 and installing the display drivers from Toshiba (tried both US and Europe drivers) am unable to adjust the brillance level using Fn F6/F7 or any other method.
Can anyone shine any light on this subject.