8
www.cablematters.com
Thunderbolt™ 3 Multiport Adapter with Dual DisplayPort™
3.7 Troubleshooting Tips for Windows
• 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
• Look for the Thunderbolt icon in the notification area
Cabling
• Check that all cable and adapter connections are secure
• Test any connected cables with different equipment
• 4K DisplayPort video resolution requires a 4K cable
Computer Source
• Alternate mode (video over USB) must be supported by your computer for video
• Try different video resolution and refresh rates supported by the monitor
• Check the DisplayPort audio output from the Playback Devices on the taskbar
• Verify that the DisplayPort audio is not muted
• Disconnect all cables, reboot the computer, and reconnect the cables and Adapter
Check for updated BIOS, firmware and software drivers from the computer manufacturer
Computers with Thunderbolt 3 ports can check for driver information at:
http://kb.cablematters.com
Connected Monitor
• Select the DisplayPort input from the monitor menu
• Adjust the audio level from the monitor menu
• Test with an HD (not 4K) monitor, if possible
• 4K DisplayPort video resolution requires a 4K capable monitor
• Configure dual 4K monitors from the Intel HD Graphics Control Panel (page 5)
configuration and your computer OS