[SOLVED] Moved second monitor (dvi) made main (display port) go blank

[Heel0232]

I have a dual monitor setup main monitor is display port and second monitor is dvi.... I physically picked up the dvi monitor to move it and bothe displays went black for a few seconds...I tightened the doc cable on the back of the dvi monitor (it was a bit loose) you think that was the problem? Thank in advance 👍

 

[Fran2005]

Go to display settings. It should tell you there if it sees the monitor at all. If it doesn't, click the detect button. If it can see the monitor you may want to check that it's set to "extend these displays" and not "only display on X".