Just now, my monitor froze.

It was in power-save mode, as the computer was off, but when I turned the computer on, the monitor did not wake up.

The power LED was amber, and the selected-input 1 LED was green. But none of the buttons on it did anything. Including the power button. (I pressed the power button and the monitor stayed on.)

I unplugged the monitor and plugged it back in to restore normal operation.

And I thought it was weird enough when I had to reboot printers to get them to work again…