Pnp0ca0 Jun 2026

External monitors connected via USB-C or Thunderbolt docks suddenly stop displaying video.

Specifically, PNP0CA0 is the Hardware ID for a . pnp0ca0

Run the installer and ensure your laptop remains plugged into a wall outlet during the firmware flash. Step 3: Reinstall the UCSI Core Drivers via Device Manager External monitors connected via USB-C or Thunderbolt docks

Right-click on and choose Uninstall device . Step 3: Reinstall the UCSI Core Drivers via

Are you seeing this ID as an in your Device Manager right now, or are you just auditing hardware logs ?

If you connect two laptops together, or connect a laptop to a powered dock, the machines must dynamically decide which device acts as the host and which acts as the power supplier. The PNP0CA0 interface negotiates these live changes on the fly. Common Errors: Code 10 and Code 43