I have a new Dell Pro Max 14 Premium laptop (TB5 compatible) and the UDT3 hub attempting to drive an Innocn 40C1U in landscape and a S2721QS in portrait. My daily routine is to fire up the laptop and close the lid during boot up, then use the computer off and on all day without issue.
CURRENT ISSUE: Coming back from a week away with my laptop operating with no external monitors, the laptop does not see either external monitor, even after rebooting the laptop and then unplugging the hub and plugging it back in.
Issues that have been occurring very rarely:
- When waking from sleep state, the portrait monitor only recognized as generic FHD capable. To date only fixable by rebooting the laptop.
- When starting the laptop, it does not see the portrait monitor at all.
Fluff background: I happily used a TBT3-UDZ for several years driving two 27” (3840 res) monitors and only upgraded to this hub because I got the 40” Innocn. Unfortunately, I then chose to also upgrade my laptop for the TB5 capability, so I have 3 relatively new points of failure to troubleshoot. My gut says its the hub, as the Innocn has been flawless when I take the hub out of the equation and go to single-monitor and the laptop also flawless when disconnected or directly attached to only one monitor.
I have previously unplugged the hub and everything connected to it for over a minute then reconnected everything.
Every port is used in the back (webcam, USB light, both monitors TB5, ethernet and power) and speakers are plugged into the front, as is a USD keyboard/mouse dongle.
Thanks in advance for any troubleshooting assistance!