Unable to detect monitor

[JasonC]

Hello,

I'm currently running two other external monitors natively (using the igpu), but am trying to run a 3rd using a display link adapter.

I initially managed to get my 3rd external monitor (running from a displaylink adapter) working once after installing the beta drivers from https://www.displaylink.com/downloads/file?id=1552 however after trying restarts, unplugging and replugging, and reinstalling the monitor is no longer detected. Restarting displaylink manager doesn't seem to to anything either.


I can confirm that the product id is recognised (as a hexcode) under system report>usb and that screen recording permissions is enabled am on a MBP 2018 13" running Mac 10.15.4 .

I've attached the logs from the displaylink information utility tool.

Any ideas why it worked initially?

Thanks

[KatarzynaCzaja]

Hello Jason,

Thank you for reaching out to us!

It will be difficult to say why it worked for a moment and stopped.
Please tell me, does the monitor work correctly when connected directly into the PC?

Thank you,
Katarzyna

[JasonC]

Hi Katarzyna,

Your suggestion has lead me to fix my problem!

After directly plugging directly into my laptop via usbc to DVI adapter it wasn't detecting the display. Then when I double checked the connection between the monitor and DVI cable it was loose!

After replugging and tightening the screws on the DVI cable it worked directly. Then I tried with the displaylink adapter instead of direct and it works!

Thanks for helping me resolve my issue! (Am slightly embarrassed that I had overlooked this)

[NBurns2020]

The old Hyundai L72D monitor with both DVI & VGA input's has worked quite happily as a monitor on my system.
And it worked perfectly well when I was mirroring my MacBook Pro (2011) output to this monitor running High Sierra 10.13.6.
My other external monitor an Acer AL1916W monitor with just a VGA input I've been using perfectly well as my other external monitor extended to the right of my laptop.

Initially when I looked for 'extended display' it would not show in the software.
Now, the monitor is not working at all.
Help please?
If you need any information and log files I can supply them if you tell me where to look.

Background was in Telecomms engineering but this has foxed me today when my DisplayLink just arrived.

[NBurns2020]

Update @19:01-->
The monitor is now working via the DVI input however for some strange reason my mouse does not show itself within that monitor screen,.....Weird!!!!