kvm vt's dim

[Skunk Worx]

Hi,

I have several "Kontron" KVMs and if a system is booted into console 
mode all is well...the contrast is as expected.

Desktop machines seem ok too. Contrast is fine on the VTs.

However if I boot into runlevel 5, and use ctrl-alt-fx to switch to a 
virtual terminal, it works but the display is very dim and difficult to 
read.

One of our admins is colorblind and he is really struggling.

I've had various issues with these kvm's from FC4 up, but this 
dim/contrast issue for KVM vt's is new for F9.

Any comments or suggestions are welcome, esp. if you know a way to 
restore or set the brightness/contrast settings on the vt's.

TIA,
John