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drcouzelis

Member

From: Connecticut, USA

Registered: 2009-11-09

Posts: 4,092

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Changing the order of precedence of video card ports

My video card, a Radeon HD 5450, has three outputs: HDMI, DVI, and D-SUB. I have my TV plugged in to my computer via HDMI and my monitor via DVI. I ignore the D-SUB port.

The HDMI port appears to take precedence. When I start my computer, the resolution is configured for my TV, which is then mirrored to my monitor. This isn't a problem, because I configured X to switch resolutions (so the monitor is correct, and the TV disabled) as soon as X starts. But this doen't take into account the TTY screens and the other operating systems I have installed.

Is it possible to change the order of precedence of ports on my video card? Do any video cards support changing this?

alphaniner

Member

From: Ancapistan

Registered: 2010-07-12

Posts: 2,810

Re: Changing the order of precedence of video card ports

Have you tried doing it through Catalyst Control Center (or whatever it's called these days)?

Or maybe there's some jumpers/headers on the card itself.

The only [remotely] similar experience I have had was with an nVidia card. It had VGA, DVI and HDMI. The HDMI was inactive during POST, and there was nothing could be done about it.

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