Second monitor not recognised

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Jymjam13

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Jun 16, 2019
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so I just set up my computer with two monitors. Both monitors work connected direct to computer both on hdmi and vga but if I try to connect the second monitor to the first or even swapped the second monitor doesn’t exist to the computrr
 

cwwozniak

Chuck
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Nov 28, 2005
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Hello Jymjam13, and welcome to TSG.

When you say, "Both monitors work connected direct to computer both on hdmi and vga" do you mean that both monitors work correctly when both are connected at the same time to two different video output ports on the computer? If so, please clarify what is the problem.

In any case, please tell us the brands and model numbers of both monitors. Also, tell us the brand and full model number of the computer and/or the motherboard. If you have a video controller board plugged into the motherboard, please tell us the brand and exact model number of the controller board and NOT the brand and model number of the video controller IC on the video board.

EDIT: If you are using a plug-in video controller board in a computer that also has a video controller built into the motherboard, the motherboard video is usually disabled.
 
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