Hello,
Can you please describe how your monitors are connected - what monitor is connected to which video port?
And also if you could share what is the DisplayLink powered device that you have I would greatly appreciate it.
In addition to more details I will need logfiles to check the feedback from the driver. For instructions on how to gather the logfiles please navigate to the following article
How to report macOS issues to DisplayLink
And aslo for speedy support please send an email with the logfiles and detailed problem description to:
technical-enquiries@synaptics.com
Best regards,
Katarzyna