Pnp0ca0 -

. In Linux and other modern operating systems, this interface allows the OS to communicate with the hardware to manage USB-C features like power delivery, data roles, and alternate modes (like DisplayPort). Framework Community Below is a guide on how to identify and troubleshoot on your system. 1. Identify the Device

If you are experiencing issues with charging or USB-C docking stations, use the following methods to resolve the error. Method 1: Perform a Hard System Reset (EC Reset) pnp0ca0

To understand what PNP0CA0 does , one must observe its absence. When a Linux system boots, the kernel’s ACPI driver parses the Differentiated System Description Table (DSDT) provided by the BIOS. If the DSDT contains a Device entry with _HID (Hardware ID) equal to PNP0CA0 , the kernel will load a specific driver, typically acpi_processor or a dedicated platform driver, to manage that container. When a Linux system boots, the kernel’s ACPI

When your computer is running on battery power or when the system is idle, PNP0CA0 helps to: Operating System Support

pnp0ca0: Unable to evaluate _STA - No such method

If the operating system cannot properly identify the ACPI Root Bus, it might be because the BIOS is outdated and not communicating correctly with the OS. Updating your BIOS can resolve underlying ACPI table errors. 4. Virtualization Environments

Ensuring the cable works correctly regardless of which way it is plugged in. Operating System Support