Displayport and HDMI dual monitor locked resolution


Thread Starter
May 23, 2020
I have an rx580 and resently got a second screen i have the hdmi into on monitor then a displayport to hdmi adapter from the gpu into a hdmi cable to the second no matter what i try updating drivers and turning them off the resolution on the displayport is locked at 640x480 however if i only plug the displyport in then i get 1920x1080. However as soon as the other monitor is connected the resolution go back to 640x480 any ideas?
May 12, 2011
First Name
Hardware specs?

If this is a laptop, it may not support multiple monitors (some models are resolution limited).

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