Did you update the graphics driver before or after that failure?
I just today tried updating driver again, and the problem still persists.
When I go to Control Panel - Displays - Change Display Settings - Detect, it tells me "Another display not detected"
If I turn the Acer Display off, and then on it tells me no signal.
Try drivers from this list Downloads for Intel® HD Graphics 620
Select OS from right pulldown menu. Hit "show more".
If you encounter an error message about validation, then install driver via "have disk method" as described at:
(ignore prolog about MS surface)
I phrased that poorly. I went to Acer and updated the drivers, and I went to Intel and updated the drivers.
hey told me the drivers, or software (Intel) was up to date.
You can try older drivers to check if it is a regression.
To check the hardware:
-use another cable
-connect your Acer monitor to another PC
-connect another monitor or TV to your DELL
I have an appointment that I need to go to, I'll find the correct cords and try the hardware test this evening.