iMac DisplayLink makes Kaleidescope patterns

[Lee525]

My iMac 10.14 OS runs two external monitors fine using a Dell D3100. Except when screen zooming with the Accessibility Zoom, it leaves crazy kaleidoscope trails behind. They go away when zoom back out to normal.

I also have a Dell D3100 on my MacBook air M1 and it works perfectly. Any ideas as to why my iMac does this?

[DanielS]

Originally Posted by Lee525

My iMac 10.14 OS runs two external monitors fine using a Dell D3100. Except when screen zooming with the Accessibility Zoom, it leaves crazy kaleidoscope trails behind. They go away when zoom back out to normal.

I also have a Dell D3100 on my MacBook air M1 and it works perfectly. Any ideas as to why my iMac does this?

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