What is the line on the monitor?

Question

Monitors

Here is a strip on the monitor, it is not in the BIOS, but only in Windows, and if you connect another monitor to your computer, then this strip is not there. It looks like the cable is leaving the monitor, but it should also be in the BIOS then.

Answer 1

Wangyu that if you change the resolution, the bar will disappear (on the grounds that it is not in the BIOS; scaling for non-native resolution and all that). Some rare malfunction in the monitor.