Dual monitors using DVI / VGA ports on motherboard

[Chris G]

On Mon, Mar 21, 2011 at 06:10:23PM +0200, Dotan Cohen wrote:
> Hi all, I have this motherboard in my computer:
> Asus M3A78-EMH HDMI
> http://www.asus.com/Product.aspx?P_ID=khuIilXQjwItSrPi
> 
> I wonder if I could attach two monitors to the system, one to DVI and
> one to VGA, and have the computer recognise them as separate outputs.
> I'd simply try but I don't yet have an additional monitor to test on
> at the moment (everything I own is VGA). Does this sound reasonable?
> 
That page says:-

    Dual VGA Output
    The interface of this motherboard supports dual VGA output both HDMI/DVI
    and RGB and is HDCP compliant allowing playback of HD DVD, Blu-ray Disc.

That suggests to me that you can use both at the same time but I must
admit it's ambiguous.

> Failing that, if I were to add a discrete PCIe graphics card would I
> be able to use both the onboard VGA output and the card's VGA output
> as separate monitors? Or would I need a graphics card with two
> outputs?
> 

I'm pretty certain that to have two monitors (know as double headed) you
need a graphics card that has two outputs, a separate graphics card
won't 'play nicely' with the built-in graphics.

-- 
Chris Green