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Old 06-16-2021, 07:39 PM   #1
Dan C
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Join Date: Jun 2016
Posts: 3
Default Display Link Manager reports No monitor detected

Environment: M1 MacBook Air OSX version 11.4
Installer package used: [displaylink] Mac usb display adapter for OS 10.15,11
Installed software: Display Link Manager 1.4.0
Connection status: No monitor detected
Login screen extension status: Available to download and install
Automatic startup - checked
USB 2.0 Hub
USB C Video Adapter (there is an HDMI device connected to a USB-C dock)
USBVGA
Product ID 0x5100
Vendor ID: 0x0711 (Magic Control Technology Corp)
Version 0.01
Speed: Up to 480 Mb/s
Manufacturer: MCT CORP
Location ID: 0x00120000 / 5

Physical Device: SIIG USB 2.0 to VGA, v2.0 02-1071B

Install did not mention Rosetta, however an earlier install of software had asked and used it.

System Preferences: Security & Privacy | Privacy | Screen Recording does NOT show the app.

System Preferences: Display | Arrangement Does not show the monitor connected to the DisplayPort device
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Old 06-16-2021, 08:50 PM   #2
tommiy
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Displaylink Drivers work in conjunction with the DisplayLink chipsets in the adapters. The no monitor detected typically implies that the adapter being used does not use the Displaylink chipsets. The endorsed products are present here but typically you will see the "DisplayLink" logo on endorsed adapters. It would appear you are potentially using a standard non-DisplayLink USB adapter.
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Old 06-17-2021, 11:15 AM   #3
rboerner
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Quote:
Originally Posted by tommiy View Post
Displaylink Drivers work in conjunction with the DisplayLink chipsets in the adapters. The no monitor detected typically implies that the adapter being used does not use the Displaylink chipsets. The endorsed products are present here but typically you will see the "DisplayLink" logo on endorsed adapters. It would appear you are potentially using a standard non-DisplayLink USB adapter.
tomminy is correct.

The information in the original post has the key detail:

"Vendor ID: 0x0711 (Magic Control Technology Corp)"

The adapter being used by the original poster is using Magic Control Trigger technology. It is NOT using DisplayLink technology.

Since the product being used is not using DisplayLink technology, DisplayLink will not be able to help.

The original poster states that the device is:

"Physical Device: SIIG USB 2.0 to VGA, v2.0 02-1071B"

Which appears to be this device --> https://www.siig.com/usb-2-0-to-vga-1624.html

As a result, you should contact SIIG for assistance.
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Old 06-17-2021, 01:45 PM   #4
Dan C
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Join Date: Jun 2016
Posts: 3
Smile

Thank you both for your replies!
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