So I was just using my PC as normal, took a bathroom break, and when I got back my CRT monitor was black.
It's still powered on, the light isn't blinking like it's disconnected.
When navigating my multi-monitor setup my mouse still crosses over the CRT like its still there.
I can go into display settings and see it there, change the resolution (which does nothing) and do everything I could normally do.
The computer didn't restart or update anything, at least as far as I know, I didn't witness it happen but I was only gone a minute.
I've tried updating my display driver.
I have another vga monitor connected via a display port adapter just as the problem CRT is and that's still working fine.
I plugged the problem CRT into the other working display port adapter, and the working vga monitor into the CRT's adapter, working vga monitor is still working, problem CRT is still a problem.
Disconnected all monitors but problem CRT and rebooted, didn't see a POST screen so the problem does not appear to be with Windows.
I even went so far as to change out my graphics card.
Unable to change vga cable as one end is permanently attached to the CRT.
Full system stats below.
Any help would be greatly appreciated. I'll write off the CRT if I have to but I really don't want to.