After insisting up and down that the monitor was plugged in correctly, after 20 minutes on the phone, we discovered that the monitor was not plugged in correctly.

After insisting up and down that she knew the difference between HDMI and displayport, I told her to unplug the displayport cable from her old monitor, and she unplugged the HDMI cable.

After she unplugged the HDMI cable, she discovered that the monitor was not plugged in to the computer.

It took us 20 minutes of talking to discover that the monitor was not plugged in to the computer.

These are the people who decide our elections and pass constitutional amendments.