[Dima]

I have 4 external displays connected using USB DisplayLink adapter. The other two are connected directly to mac-mini. Once in 2-3 days all 4 USB connected displays just freeze. I have to reboot the machine to get them live again. Other two displays function OK and machine is fine overall.

MacOS 1.8.5.
DisplayLink driver 2.2.

Any idea what can be wrong?

D.