Displaying Green via DisplayLink

[BigD6699]

Got this output from a Z-Book, other laptops work fine using the same cabling (tried 3) and the Z-book is fine on the HDMI out - any thoughts?

[AlbanRampon]

Hello,
You are duplicating, which would select the highest common resolution. It looks like a timing issue.
It could be why other laptops work fine and a direct connection works fine too.
Please use the last link in my signature to gather log files and send them to tech support email in that FAQ.
Kind regards, Alban