Tuesday, September 23, 2025

External screen on a Lenovo laptop goes black for a few seconds repeateadly

 That's what Google LLM suggests:

The keyboard shortcut Ctrl + Shift + Win + B (sometimes written as Ctrl + Win + Shift + B) in Windows is used to restart the graphics driver and can resolve issues like a black screen, screen freezing, or graphical glitches. Pressing this combination will cause your screen to flash black and you may hear a brief beep, indicating the driver has been reset without losing your open applications.

I tried multiple times after it occurred. After that it seems to have stabilized. We'll see... 

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