GRL is the leading contributing lab for DP compliance test development and works with all key players in the DP standard.

DP 1.4 and DP over USB Type-C (DP Alt Mode) logo Certification, pre-compliance and debugging services for Sources, Sinks, Cables, Adapters, & Hubs:


  • Electricals at all rates (RBR, HBR, HBR2, HBR3)
  • Link Layer & EDID
  • Interoperability
  • Multi-Stream (MST) and other optional DP features
DisplayPort DP40 / DP 80 UHBR Cable logo certification service and Early DP 2.0 test services for Source and Sink are also available. 

Contact GRL for details.