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Old 01-26-2024, 03:25 AM   #1
NokiaMulse
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Join Date: Jan 2024
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Default DisplayLink Manager App not working on macOS Big Sur 11.2.3

Hello, I have a problem with the DisplayLink Manager App on my MacBook Pro (M1, 2020) running macOS Big Sur 11.2.3. I have installed the latest version of the app (1.3.0) from the DisplayLink website, and I have connected my external monitor (Dell U2414H) via a USB-C to HDMI adapter (Anker PowerExpand+). However, the app does not detect the monitor, and the monitor shows a "No Signal" message. I have tried the following steps, but none of them worked: Restarting the app and the computer

Reconnecting the adapter and the monitor

Changing the HDMI cable and the HDMI port on the monitor

Allowing the app to access the Screen Recording permission in System Preferences > Security & Privacy > Privacy

Disabling the SIP (System Integrity Protection) and the AMFI (Apple Mobile File Integrity) on the computer

I have also checked the app's log file, and I found some error messages like:

[ERROR] Failed to create IOUSBHostDevice for service 0x1000004a5
[ERROR] Failed to find device handle for service 0x1000004a5
[ERROR] Failed to open IOUSBHostInterface for service 0x1000004a7, err = e00002c5

I have attached the full log file and a screenshot of the app's window for your reference. Can you please help me to solve this issue? Thank you.

Last edited by NokiaMulse; 01-30-2024 at 02:14 AM.
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