Cannot dim display with Fn keys
Hello,
I've just noticed that on my fresh Fedora 19 install, I cannot use the Function keys to dim/brighten my display. All the other function keys work, except for these two.
I'm running F19 x64 on a HP ProBook 4540s with Intel HD4000 and AMD Radeon HD 7650m graphics.
The HP website doesn't seem to offer any Linux drivers and I'm a bit stumped.
Any ideas? Thank you.