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Thunderbolt™ 3 Multiport Adapter with Dual DisplayPort™
3.8 Troubleshooting Notes for Mac
•
Check for the Thunderbolt logo on the computer port. This adapter is NOT compatible
with a USB-C port that is not Thunderbolt 3 compatible.
•
The Thunderbolt 3 port must be wired for 40 Gbps to support dual 4K monitors
Cabling
•
Check that all cable and adapter connections are secure
•
Test any connected device cables with different equipment
•
4K DisplayPort video resolution requires a 4K cable
Computer Source
•
Check for updated OS software patches from Apple
•
Try different video resolution settings supported by the monitor
•
Check the DisplayPort audio output from the
Sound
menu in
System Preferences
•
Verify that the DisplayPort audio is not muted
•
Disconnect all cables, reboot the computer, and reconnect the cables and Adapter
Connected Monitor
•
Select the DisplayPort input from the monitor menu
•
Adjust the audio level from the monitor menu or remote
•
Test with an HD (not 4K) monitor, if possible
•
4K DisplayPort video resolution requires a 4K capable monitor
Contact
with a description of your hardware
configuration and your computer OS
