English Community

ThinkPad NotebooksThinkPad T400 / T500 and newer T series Laptops Knowledge Base

T420 / T520 / W520 - No audio when using DisplayPort -> HDTV


On my T420 I can't get any audio through the Display port. The picture is fine, but the computer does not find any audio devices linked to DP.


  • Ensure you have the latest GPU driver installed
  • Check HDMI audio is setup properly here
  • Ensure the DP -> HDMI converter (dongle) is compatible to stream Audio and Video

Lenovo recommended DP -> HDMI Converter here


Customer recommended DP -> HDMI Converter here


Please note that customer recommended DP -> HDMI converter is not supported by Lenovo if it does not work and is used at your own risk.


Was this information helpful?

Yes No


Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop