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Display port not recognized and stuck in 640x480 res

Question asked by planterspeanut on Jan 8, 2016
Latest reply on Jan 8, 2016 by planterspeanut

I have a amd radeon r9 270 running matching 24in monitors. Occasionally the monitor running off the display port becomes unrecognizable. It still works but  stuck in 640x480 res. I'm not a computer guy, but anythought on what to do? I have changed cable and updated drivers but same thing. Trying drivers again as we speak, but anyone have any thoughts? I have fixed it in the past, but cant remeber what combination it took to work.. Dont make me look too stupid. I work on airplanes, not computers.