I was messing around with the settings and I guess I changed the display adapter? As I did, my monitor shut off and went into power saving mode. I tried to reboot the system. The system rebooted but the monitor went into power saving mode again. I used an HDMI cable to hook my tower up to my tv to try and fix the setting. Im pretty sure I did. The desktop monitor works, but as soon as I unplug the HDMI cable, it goes back into power saving mode