Screen Resolution Changes When the Monitor Sleeps Using Intel® UHD Graphics 750
Content Type: Troubleshooting | Article ID: 000089932 | Last Reviewed: 08/11/2022
When the monitor is turned off (e.g.: after 10 minutes by Power Setting when it goes to sleep) a "USB/Device change sound" is heard. This goes back and forth (pairs of sounds 3 seconds apart - "plugged"/"unplugged") every ~20-40 or so seconds.
After the "unplugged" sound, when the monitor wakes up (e.g.: by moving the mouse), the screen resolution is changed and incorrect with black bars at top/bottom of the screen, illegible font, etc.
Follow these steps to rule out hardware issues: