I have a USBC-6950-HDMI with 2 x Dell monitors and the network cable plugged in. This is attached to a HP Envy laptop.
Every 20-30 mins the screens go blank, and all windows go to laptop screen, as if the unit has been disconnected from the USB-C socket.
The USB unrecognised message is displayed in the windows 10 alert tray and if the USB-C plug is disconnected, the laptop sometimes freezes and crashes (only a forced shutdown with power switch resolves this issue).
Sometimes the laptop will stay on but unplugging and pluggin back in the USB-C plug does not bring the screens back to life.
When I try and shutdown the laptop, the machine never switches off and the power button is then needed again to shutdown the laptop. Once the laptop is re-started the screens work again…until the next time.
I don’t believe it to be a hardware fault as I have another HP laptop for work and the screens work fine in this configuration for hours and hours.
I have tried using the displaylink cleaner and re-installed the drivers.
I have also disabled the USB suspend on sleep in the advanced power settings.
Please help…it’s driving me crazzzzzy!