Display port - cannot see BIOS

[hornetstinger]

I've had two Samsung display port monitors, if I try to go into BIOS I can't see anything, nor can I see the post loading screens.

What's going on?

ATI 480
Samsung 24" 1080p 144hz
Samsung 27" 1440p 144hz

 

[Heisenberg]

Do you have any other monitors/tv plugged in at same time. I have a dizzy port monitor and HDMI tv setup and the bios only displays on the HDMI tv.

 

[hornetstinger]

Two computers plugged into the one monitor.
Works fine when I had a older monitor.

Dunno what I'm gonna do if I need to go into BIOS. :-/