I’m working with a brand new HP Spectre x360 connected to a USB-C 4k dock that worked well for a few hours today. It’s connected to a logitech mouse/keyboard dongle, ethernet cable and two displayport cables connected to two older Dell monitors.
Later this evening I found that the laptop, while responsive to the logitech mouse and keyboard no longer saw the monitors or ethernet cables.
I’ve disconnected the dock and it’s power, uninstalled the Displaylink software, ran the cleanup tool, rebooted, reinstalled the Displaylink software, reconnected the dock and slowly reconnected the devices one-by-one
The Logitech dongle is seen without issue and the ethernet cable pushes through without issue. When I connect a single Displayport cable it’s duplicated without issue long enough for me to open the display settings. it will show and identify the Dell monitor for a minute or so until the laptop display blinks and no longer sees the additional display. The ethernet connection is also lost, however the Logitech mouse & keyboard still works just fine. Internesting as well, the Displayport monitor will continue to display the last version of the laptop screen is was showing when connection was lost included the date/time frozen at the point of disconnection.
I have to unplug the USB-C cord, power off the dock, remove the attached devices and start the process again. I’ve tried this through both USB-C ports on the laptop and uninstalled/reinstalled the Displayport software twice. Looking for any other suggestions of what I should try.