Strangest display problem I've ever had

I came home one day to find that my monitor was no longer displaying my PC via HDMI. After a lot of testing, I've found that the monitor works with other PCs via HDMI, and my PC works with other monitors via HDMI, but they don't work together. All I get is a black screen. I know that my PC's resolution is set to one that my monitor can display. I've tried several different cables. I have absolutely no idea what the issue might be, and I'm pretty much at my wit's end here. Any ideas?
 

cliffordcooley

Posts: 12,384   +5,782
Have you tried different projection modes? Windows will remember set profiles for specific monitors. It is possible the the projection mode was turned off for the monitor, and will stay that way until the mode is changed.

For Windows 7 press "Windows Key + P" to bring up the projection menu.