DisplayLink Forum - View Single Post - Monitors show in 'Display' setting but screens don't display anything

bigred247 · 01-21-2023, 05:40 PM

Hi folks,

RE: MacBook Pro M1 14" 2021, Apple M1 Pro chip, 16GB RAM, OS Monterey 12.5

I installed the display link driver for my Wavlink WL-UG69PD24 hub and can see my 2 additional external monitors in the mac "displays" setting menu but neither seems to display anything on the screen. The first monitor i plugged in momentarily came on and then disappeared. I’m also getting random red vertical and horizontal lines. See *screesnshots* linked below.

I've tried the following:

- reseating all cables
- check the DisplayLink connection settings (enabled automatic startup) and installed login screen extension status
- powered the hub on and off
- restarted Mac
- switched the hub to Mac C cable across the 3 USB C sockets on the Mac

But none of the above has made a difference. I am using a display port to display port on both my external monitors. The monitors are in good working order and work if I directly connect them to my USB C ports directly on my Mac.

I downloaded my drivers from this location https://www.wavlink.com/en_us/driver...5a54b3faf.html

Any tips to resolve this?

PS. I have attached screenshots via the links below to illustrate the configurations.

#macOS version
https://drive.google.com/file/d/1jI9...usp=share_link

#display link manager settings
https://drive.google.com/file/d/1LFq...usp=share_link

#mac display 'settings'
https://drive.google.com/file/d/10bL...usp=share_link

#mac display options
https://drive.google.com/file/d/1tjP...usp=share_link

#random red lines appear across all screens
https://drive.google.com/file/d/1O3I...usp=share_link

Thanks.

01-21-2023, 05:40 PM	#1
bigred247 Junior Member Join Date: Jan 2023 Posts: 1	Monitors show in 'Display' setting but screens don't display anything Hi folks, RE: MacBook Pro M1 14" 2021, Apple M1 Pro chip, 16GB RAM, OS Monterey 12.5 I installed the display link driver for my Wavlink WL-UG69PD24 hub and can see my 2 additional external monitors in the mac "displays" setting menu but neither seems to display anything on the screen. The first monitor i plugged in momentarily came on and then disappeared. I’m also getting random red vertical and horizontal lines. See screesnshots linked below. I've tried the following: - reseating all cables - check the DisplayLink connection settings (enabled automatic startup) and installed login screen extension status - powered the hub on and off - restarted Mac - switched the hub to Mac C cable across the 3 USB C sockets on the Mac But none of the above has made a difference. I am using a display port to display port on both my external monitors. The monitors are in good working order and work if I directly connect them to my USB C ports directly on my Mac. I downloaded my drivers from this location https://www.wavlink.com/en_us/driver...5a54b3faf.html Any tips to resolve this? PS. I have attached screenshots via the links below to illustrate the configurations. #macOS version https://drive.google.com/file/d/1jI9...usp=share_link #display link manager settings https://drive.google.com/file/d/1LFq...usp=share_link #mac display 'settings' https://drive.google.com/file/d/10bL...usp=share_link #mac display options https://drive.google.com/file/d/1tjP...usp=share_link #random red lines appear across all screens https://drive.google.com/file/d/1O3I...usp=share_link Thanks. Last edited by bigred247; 01-21-2023 at 07:43 PM.