i just came here knowing that somebody who can do really help solve this unknown problem...
i have the slidebar at power options but it does not effect brigtness.
changed all power plans does not effect brigtness.
updated driver chipset from hp website does not effect brigtness.
fn hotkeys does not effect brigtness.
model no hp1502tu.windows 7 home edition (32-bit)
is there anybody out there.my father just had CATARACT operation and i need to CHANGE THIS .HELP ME
anku