Using this with a Macbook Pro 16inch with the thunderbolt cable from Apple.
Setup
3 Monitors Connects
Each Monitor is running 2K resolution
Mac Big Sur 11.1
Display link 1.2 driver does not work
Display link 5.2.5 works
On Some occasions when connecting the Dock to the laptop it boots and in few occasions it does not. Behavior is not consistent
The Laptop when boots with HDMI display powering on.
The Dual Display ports will mostly not boot. I’d need to yank the Thunderbolt cable for display port to turn on.This will turn off HDMI. Then i need to yank HDMI to ensure all 3 display are turned on.
Thanks for the information. Strange behavior to be sure, it sounds like after booting the DisplayLink USB graphics aren’t able to start automatically until the dock is disconnected and reconnected and thus forcing a re-detect of the hardware.
Would it be possible to collect some diagnostics from your system when the dock is in the bad state with the DP ports not working?
We have a troubleshooting tool that helps us find out what is going on in situations like this. Please plug the device into your computer, then go to this page and follow the instructions there:
I apologize for my delayed reply over the long holiday weekend. I’ve had a chance to look at the various diagnostics that you’ve sent over and am seeing some interesting behavior. In one instance the DisplayLink drivers appear to be loaded correctly and the hardware is detected as expected, but the displays aren’t detected (and from what I can see, they definitely should be). Another instance the dock isn’t detected correctly at all. Given this intermittent detection of the hardware, and that the hardware isn’t always working correctly when it is detected, I suspect there may be something wrong with the dock itself.
I’ll reach out to you via email directly and we can arrange to send a pretested replacement and see if that helps. We can at least rule out the hardware this way.