What is USB-C Display Port Alt Mode?

DisplayPort Alt Mode (DP Alt Mode) is a feature of the USB-C specification that allows a USB-C port to output DisplayPort video signals directly. It enables you to connect a display, like the Looking Glass Go, to a compatible USB-C port without needing a separate video cable.

Using DP Alt Mode, the Looking Glass Go can connect to a computer through a single USB-C cable.


Checking Your Computer's Compatibility


Windows Laptops

  • Look for the Thunderbolt (lightning bolt) or DisplayPort (DP) logo next to your laptop's USB-C ports. If present, the port supports DP Alt Mode.
  • If there are no logos, find your laptop's model number in Settings > System > About. Search for the model online and check the manufacturer's specifications to confirm if the USB-C ports support DP Alt Mode or DisplayPort output.

MacBooks

  • MacBooks don't have port capability logos. Find your MacBook's model identifier by clicking the Apple menu > About This Mac.
  • Check the specifications for your model on Apple's website. Look for "Native DisplayPort output over USB-C" under Display Support to confirm DP Alt Mode compatibility.

Desktop PCs

  • Check if your PC's motherboard has a USB-C port that supports DP Alt Mode. Refer to the motherboard manual or manufacturer's website for specifications.
  • If your graphics card has a USB-C port, check the card's specifications to see if it supports DP Alt Mode.

Using an Adapter for Computers without DP Alt Mode

If your computer doesn't have a USB-C port with DP Alt Mode, you can use an adapter cable to connect its HDMI or DisplayPort output to the Looking Glass Go's USB-C input. Currently, you can purchase a HDMI adapter directly from Looking Glass.

Still need help? Contact Us Contact Us