2nd monitor not working

[ntw]

Hi

I have upgraded laptop from windows to Mac book M3. I have USB Docking station from pluggable UD-ULTCDL.
I got 2 monitors (1 new & 1 old)
Samsung LU28R55 – New one
Philips 2263VL – Old one
With windows everything used to works fine but with Macbook my old monitor neither connects with either DVI nor with HDMI.
Can you please help. Let me know if you need more details.

[SamR]

Hi Nitin,

Thank you for contacting Plugable! I’m sorry the UD-ULTCDL isn’t working as expected with your Mac, and I’ll be happy to assist.

The three video output ports on the UD-ULTCDL (labelled in the image below) each work using different technologies.

The “4K HDMI” port uses DP Alt mode from the connected computer to produce video, whereas the “HDMI” and “DVI” ports use DisplayLink Technology. From your message, I believe the ports not working are “HDMI” and “DVI”, is that correct?

The most common reason these ports would not work on a Mac is that the DisplayLink Manager is either not installed or isn’t currently running on your Mac.

In case you haven’t installed the DisplayLink Manager yet, you can find a download link with installation instructions here: https://plugable.com/products/ud-ultcdl#nav-get-started

However, if you have installed the DisplayLink Manager and these ports are still not working correctly, it’s possible that the DisplayLink Manager isn’t currently running. This software is responsible for allowing the “HDMI” and “DVI” ports to output video.

You can see that the DisplayLink Manager is running by checking if its icon is present in the macOS menu bar at the top of your screen. When the icon isn’t present the DisplayLink Manager is not running.

If the DisplayLink Manager isn’t running, you can start it by following these steps:

1. Open Finder
2. Navigate to the Applications folder on the left side of the Finder window
3. Within the Applications folder, locate the DisplayLink Manager
4. Double-click on the icon for DisplayLink Manager to open it
5. Verify that the DisplayLink Manager icon appears in the macOS menu bar, indicating it’s running

Please let me know how these steps work out, and feel free to ask if you have any questions.

My apologies for the frustration, and thank you for giving us the chance to help.

Sam
Plugable Technologies

[ntw]

Thanks You

It has resolved my issue

[leannakellerman]

Hello, I followed the steps and it worked to resolve my second external monitor not working, however everytime my computer goes into standby or turns off I have to repeat the process. Is there something I need to do to have this be the default.
Thank you
Leanna

[SamR]

Hi Leanna,

Thanks for reaching out. I’m sorry to hear you have to keep repeating those steps!

In case you haven’t already done so, it’s recommended to set the DisplayLink Manager to launch automatically after login. This will help ensure the DisplayLink Manager starts automatically if your Mac is rebooted, although in some instances, it may still be necessary to launch the DisplayLink Manager manually.

This can be set by clicking on the DisplayLink Manager’s icon when it’s running, and checking the box next to Launch automatically after login as shown below

Please let me know if you have any more questions and I’ll be happy to help!

Sam
Plugable Technologies

[gecki]

Hi
I have the same problem but with Windows 11

[SamR]

Hi George,

Sorry to hear the UD-ULTCDL isn’t working as expected!

From the screenshot provided it appears that one of your displays is currently set as disabled within Windows, so we may need to set it to “Extend” to get it working. Here are the steps to do so:

1. Right-click on an empty area of your desktop and select Display settings from the context menu.
2. In the Display section, locate the visual layout of your connected monitors near the top of the window. If the disabled monitor is connected but not active, it will appear grayed out or not highlighted.
3. Click on the grayed-out monitor in the visual layout to select it.
4. Locate the dropdown menu at the bottom-right of the monitor layout section (it may currently say Disconnect this display), and select Extend desktop to this display…
5. Click the Apply button to activate the changes, and the monitor should now be enabled and display an image.
6. If necessary, drag and rearrange the monitor icons in the display layout to match your physical setup.

Please let us know how this works out, and feel free to ask if you have any questions.

Sam
Plugable Technologies

[gecki]

Hi again

Sometimes it’s ok but other times the second screen is black

If I change the tow inputs behind the docking the black monitor Begams active and the other black

[gecki]

Hi again

Sometimes it’s ok but other times the second screen is black

If I change the tow inputs behind the docking the black monitor Begams active and the other black

(attachments)

[SamR]

Hi again,

Based on your description of the behavior, our next step is to get some additional information.

Can you please send an email to our direct support email address (support@plugable.com) with “For ticket # 434356” in the subject line? In the email, please include the following information:

1. The Amazon Order ID number for your docking station purchase
2. While the docking station is connected to your PC (even if not working as expected), the output of our diagnostic utility PlugDebug: https://plugable.com/pages/plugdebug

This information will help us to determine the next steps.

** Please do not post the above information here in our public forum (it contains personally identifiable information) **

Apologies for the frustration, and thank you for giving us the chance to help!

Sam
Plugable Technologies