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www.cablematters.com
USB-C™ Multiport Video Adapter with Card Reader and PD
3.7 Troubleshooting Tips
• When using Power Delivery to charge a laptop, first connect all cables and
the USB-C charger BEFORE connecting the Adapter
• Check that your computer recognizes the Adapter - Blue LED should be lit
• Windows: Search Device Manager > Click on: Universal Serial Bus
devices > Cable Matters USB-C Multiport Adapter
• Mac: Search: Apple Menu > System Preferences > Network > USB
10/100/1000 LAN
Cabling
• Check that all cable and Adapter connections are secure
• Test any connected cables with different equipment
• 4K HDMI video resolution requires a 4K-rated cable
Computer/Host Source
• Test with a fully charged computer and the PD port connected to power
• Try a different USB-C port on the computer
• Try different video resolution and refresh rates supported by the display
• Check the HDMI audio output from the Playback Devices on the taskbar
• Verify that the HDMI audio is not muted
• Disconnect all cables, reboot the computer, and reconnect everything
Windows computers should check for updated BIOS, firmware and software
drivers from the computer manufacturer. Check for driver information at:
http://kb.cablematters.com
Mac computers should check for updated OS software patches from Apple.
Connected Display
• Select the HDMI input from the display menu
• Adjust the audio level from the display menu
• Test with an HD (not 4K) display, if possible
• 4K HDMI video resolution requires a 4K-rated display
description of your hardware configuration.