So I've been using my main (hdmi) screen for a while and realized I could plug in my older (dvi) one just to have more space. It worked for a while but whenever my pc went to sleep and I turned it back on again the second one says no signal. I didn't care much so I just rebooted when this happened and that solved the problem. However for some reason even that doesn't work now. I can't detect it in the control panel (w10). The curious thing though is that when my computer is booting up the windows loading icon is shown on the second screen.
(I used the exact same setup with the same two monitors a year ago and everything worked fine)
Any ideas what to do with this?