Sorry to hear you are seeing issues with your Mac system and our dock with your displays blacking out.
We know some Macs have been having troubles with multi-display since about macOS 11.1 with various USB-C or Thunderbolt 3 devices. We’ve seen issues ranging from incorrect resolutions and/or refresh rates, flickering/black screens, or an inability to recognize more than one display after waking from sleep. We’re currently testing with 11.3 to see if there’s been any improvements and can confirm that some display issues are still present.
For Mac, there is not much that we can do at this time until underlying OS issues have been resolved, but I can recommend the following:
- Unplug the dock from the Mac
- Perform an SMC reset: https://support.apple.com/en-us/HT201295
- Perform an NVRAM/PRAM reset: https://support.apple.com/en-us/HT204063
- Plug the dock back in to the Mac and see if the behavior has improved
If that doesn’t help, feel free to email us at firstname.lastname@example.org and that will create a new ticket. Please include a brief description of the problem and in addition, we have a troubleshooting tool that helps us find out what is going on in situations like this. Please plug the dock with your devices attached to it into your computer, then go to this page and follow the instructions there:
@etha2 We had replied to you via the ticket you have open with us on 4/13 but have not heard back. We will be happy to assist you further, simply reply to our most recent email and it will automatically reopen the ticket.