Question Random blank/black screen events, help diagnose please (Intel NUC w/USB Thunderbolt) ?

Fredvon4

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Oct 10, 2021
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I have a Intel NUC Intel(R) Core(TM) i5-7260U CPU @ 2.20GHz 2.21 GHz USB 3C thunderbolt problems.
Issue : random multiple Monitor goes blank/black for 3 or 5 seconds and then back to my current page. Very annoying

My set up has 3 Scepter Monitors, 2 are 24 wide and one 27 wide all HDMI fed from 1 native NUC HDMI port, and 2 via the USBC Thunderbolt port into a USBC dongle to 2 HDMI outputs.
I noticed the USB-C to HDMI x 2 out ran very hot so I added a external fan to control the heat of the dongle.

Daily when I am using all three monitors, one with news, one with my e-mail open, and one to surf the internet (FB/Forums/ you tube/ investments) 1, or 2, monitors go black for a few seconds. Oddly the one monitor I have with Netflix/Hulu etc never does this , just the other two.

Not a BIG problem, just annoying
Any Ideas?
 

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