Dual monitor one monitor random on & off

[denovic]

Originally Posted by Geir

My dual monitors shuts off and on again several times during the day. I've restarted my computer and docking station. I've cleaned and uninstalled the old DisplayLink driver and installed the new latest program. Problem is still not resolved.. Getting a bit frustrated. My Mac Pro M1 is starting to get a little old (from 2022) - is this a problem?

I have the same problem (using MacBook Air M3) since a long time ago. Nothing works:
I have already tested:

different monitors (BenQ + Samsung)
different HDMI/DP cables
different USB‑C cable
different USB‑C ports on the Mac
MacBook powered by its own charger
latest DisplayLink Manager
full reinstall + macOS permissions
swapped setup with colleague (same MacBook, same dock) → only my Mac has the issue


Does anyone know this issue or possible fixes?