Triple Monitor Problems...

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So I have three different 4:3 monitors. Two with VGA, and one with DVI-D and VGA.
My video card has a VGA, a DVI-D, and an HDMI.
I hooked up the first two, no problem at all. I then ordered an active adapter from HDMI to VGA, and hooked up the third. When I turned on my computer, all of my displays started flashing and the one with the HDMI wouldn't show anything. I unplugged it and restarted my computer and enabled 1280x720 under CCC, and retried it. Nothing... So I plugged it back in, and restarted my computer. All three showed my BIOS or POST or w/e. It continued displaying right until the windows loading symbol went away. Then darkness and flashing...
What could be happening? Any fixes?
 
Solution
mauller07


it is most likely that the dvi and hdmi port are shared, if you try them individually they will most likely work.
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mauller07

mauller07

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Mar 28, 2010
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what graphics card do you have by the way? all newer non multi monitor AMD cards only support 2 legacy connections at a time and a third output using a display port output (you need an active adapter if you do not have a display port input on monitor).

legacy being DVI/HDMI or VGA
 
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G

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I have a AMD Radeon HD 6450 with one VGA, one DVI-D and one HDMI.

 
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I've tried disconnecting the VGA so its just the HDMI and the DVI, and there is still nothing... What about that?
 
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G

Guest

Guest
I've tried disconnecting the VGA so its just the HDMI and the DVI, and there is still nothing... What about that?
 
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mauller07

mauller07

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Mar 28, 2010
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it is most likely that the dvi and hdmi port are shared, if you try them individually they will most likely work.
 
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Solution
G

Guest

Guest


Yep, you're right. Thank you for helping me :ange:

 
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mauller07

mauller07

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Mar 28, 2010
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no worried bud.

if your motherboard has a built in graphics card and your using all the monitors for desktop work you could go into the bios and stop the motherboards graphics being disabled and using the third monitor on the motherboard.
 
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Unfortunately it doesn't. I'm probably going to upgrade anyways
 
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