CentOS - Jan 2016 - Radeon driver with HD 2600 pro and dual head

Hey list,

I got a problem with a Gigabyte radeon HD 2600 pro card regarding my multi head
setup with . This card has two DVI connectors. The second monitor has the state
of being disconnected after startup (xrandr -q). When I disconnect it and
reconnect sometimes the screen comes up and the second monitor shows up in
display settings.

It doesn't matter which port of the card I use first - the other one is
disconnected.

Any idea where I can take a look at?

Thanks in advance

Regards
Tim