Using a Display Dock with a 2017 MacBook Pro on Catalina.
I am using dual 32" 4k Monitors connected via thunderbolt 3 (usb-c cable "3" rated)
I get crystal clear audio but no video. I am streaming the content, it is not downloaded locally.
OS version 10.15.7
MacBook Pro
Hey clevefromcalgary,
We understand that you are not seeing any video when viewing the Apple TV app on your external monitors with your MacBook Pro running latest version of macOS Catalina.
We recommend following the steps below from the following article: Get help with video issues on external displays connected to your Mac
"You can resolve many display issues by updating the software on your Apple devices, cables, and adapters. If you can see an image on your screen, check for software updates using the Mac App Store:
If you're using a display, hub, extender, or adapter not made by Apple, check with the manufacturer for any updates that might be available."
Also, does this issue happen if you don't use any external displays with your MacBook Pro? You can also test in a new user to see if the issue is happening with any users on your MacBook Pro or only yours: Set up users, guests, and groups on Mac Safe mode is also a great troubleshooting step as well: How to use safe mode on your Mac
Take care!
Hey clevefromcalgary,
We understand that you are not seeing any video when viewing the Apple TV app on your external monitors with your MacBook Pro running latest version of macOS Catalina.
We recommend following the steps below from the following article: Get help with video issues on external displays connected to your Mac
"You can resolve many display issues by updating the software on your Apple devices, cables, and adapters. If you can see an image on your screen, check for software updates using the Mac App Store:
If you're using a display, hub, extender, or adapter not made by Apple, check with the manufacturer for any updates that might be available."
Also, does this issue happen if you don't use any external displays with your MacBook Pro? You can also test in a new user to see if the issue is happening with any users on your MacBook Pro or only yours: Set up users, guests, and groups on Mac Safe mode is also a great troubleshooting step as well: How to use safe mode on your Mac
Take care!
Thank you for the input. I do have an external Wavlink Dual 4K hub. It is the issue.
If I want to watch on the MacBook screen, I have to unplug the hub and reboot. It works after that.
clevefromcalgary,
Thanks for letting us know you've found the issue causing no video. As mentioned previously, you can see if there could be any updates from the manufacturer for the hub which might help. Let us know if you need any further questions.
Have a great week.
Apple TV App - Audio but no video
