I'm having this infrequent but annoying issue with my desktop that I use as a HTPC. Basically I have a desktop hooked up to a normal TV, quite often I will turn off the monitor or switch to a different device (roku or smart TV), and occasionally when I try and switch back to the desktop there will be nothing there. As in the TV reports no signal from that input.
At first I thought it was a handshake issue for the video signal, but the computer also seems unresponsive. I've tried using win+X keystrokes to try and blindly get the computer to shutdown/restart and nothing happens. I've tried mapping specific hotkeys to initiate a restart and nothings happens. I have an IR receiver and a program that watches for IR inputs, which I've setup to restart when it sees a certain IR input, and again nothing happens. Inevitably the only thing that works is hitting the reset button on the case which does initiate a restart and everything comes back as normal.
There's never an event log associated with the issue, except for the unexpected shutdown when I hit the reset button. I also never have issues while I am actively using the pc. It's possible that it is a sleep issue (where usb ports are disabled so none of my external devices can wake the pc?), but at this point I've turned off every kind of hibernate/sleep/low power functionality I can find in the power settings and it still happens.
Computer is running windows 10, it is a nvidia 750ti video card, and I use an active DP to HDMI adapter from accell
. I've tried updating the graphics driver a few times and it doesn't seem to have any effect. I believe I tried removing the adapter at one point (using just hdmi) and I still had the issue, but I'm not 100% on that. I may try again.
Probably a long shot but if anyone has any other ideas I'm open to suggestions. My Wife Acceptance Factor is taking a hit with this problem.