Screen goes black when HDMI and VGA are both plugged in on Radeon HD 6450

Jayden82

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Apr 6, 2015
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Earlier this was working fine, but I came home from work and it wouldn't work. If I have my VGA just plugged in it's fine, but as soon as I plug the HDMI in both screens go black and won't turn on until I unplug the HDMI.
 

Jayden82

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Apr 6, 2015
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The power supply is new so that shouldn't be a problem. When plugging in another HDMI cable it doesn't seem to go black, but this one I need to use is an HDMI to VGA, which I just bought. I'm not sure why both displays go off when I plug this one in, though. Also, what settings should I set to default?
 

Jayden82

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Apr 6, 2015
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Do you mean the VGA? The converter I have is exactly the one in that first picture, and the VGA i have is 6 foot long. If I plug in the converter with no VGA plugged into it the screens still go black.

 

Jayden82

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Apr 6, 2015
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How can I change the resolution on the other monitor if both screens are black? Also, why would it work earlier and not now?