The second monitor is no longer recognized

Szymon · 05-13-2026, 07:36 AM

Thanks for the report - I confirm it is visible in the system and a support engineer will pick it up.

> What could have happened?
Some monitors can be very timing sensitive and such initialization inconsistency is one of the possible results.

Regards
Szymon

AFri · 05-19-2026, 09:28 AM

I have the same problem. Pls post the solution here if found.

xitation · 05-19-2026, 11:20 PM

I've got the same issue since upgrading to Tahoe, running v16 of Displaylink Manager.

Primary screen is detected and works fine, secondary screen sort of shows as being there but won't output anything.

This worked fine before upgrading macOS, and as the screen is used by other devices I know that the screen and cables are fine.

Seems specifically related to macOS version change and Displaylink driver.

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05-13-2026, 07:36 AM	#1
Szymon DisplayLink Tech Support Join Date: Feb 2010 Posts: 332	Thanks for the report - I confirm it is visible in the system and a support engineer will pick it up. > What could have happened? Some monitors can be very timing sensitive and such initialization inconsistency is one of the possible results. Regards Szymon

05-19-2026, 09:28 AM	#2
AFri Junior Member Join Date: May 2026 Posts: 1	I have the same problem. Pls post the solution here if found.

05-19-2026, 11:20 PM	#3
xitation Junior Member Join Date: May 2026 Posts: 1	I've got the same issue since upgrading to Tahoe, running v16 of Displaylink Manager. Primary screen is detected and works fine, secondary screen sort of shows as being there but won't output anything. This worked fine before upgrading macOS, and as the screen is used by other devices I know that the screen and cables are fine. Seems specifically related to macOS version change and Displaylink driver.