Detecting cable orientation and connection status for partners. Technical Implementation
your computer; the OS will automatically reinstall the driver. 3. Check for Firmware/BIOS Updates UCSI USB Connector Manager Driver for HP - DriverIdentifier
A specific case from the Microsoft Q&A forum highlighted a user with an HP Envy notebook who experienced a "smart adapter isn't powerful enough" error. The event log showed: "Device ACPI\PNP0C0A\1 was migrated." This is a closely related identifier (note the 0C0A vs 0CA0 ) associated with battery and power management. The user discovered that after discharging the motherboard by holding the power button and reseating the battery, the charging issue was temporarily resolved until the driver state failed again.
– pnp0ca0 is a PnP ID often associated with ambient light sensors (e.g., on some Dell laptops using hid: PNP0CA0 ). If so, content could include: pnp0ca0
Over the years, ACPI has evolved to accommodate new technologies and features. Today, ACPI is a critical component of modern computer systems, enabling advanced power management, device configuration, and thermal management.
is a standardized hardware ID used by the Windows operating system to identify the UCM-UCSI ACPI Device . It plays a critical role in managing modern USB Type-C ports , handling crucial hardware features such as USB Power Delivery (USB PD), Alternate Modes (like DisplayPort or HDMI output over USB-C), and dynamic power/data role swapping.
Windows uses the UcmUcsiCx.sys extension alongside client drivers to translate OS-level commands (e.g., "switch from charging to discharging") into firmware actions your hardware can execute. 🛠️ Typical Features Regulated by PNP0CA0 Check for Firmware/BIOS Updates UCSI USB Connector Manager
The driver cannot wake up the USB controller from sleep. How to Fix the PNP0CA0 Error (Step-by-Step)
Understanding these distinctions helps narrow down the problem. A charging error is more likely to be PNP0C0A (battery-related) or PNP0CA0 (negotiating power delivery over USB-C) than a generic PNP error.
: USB Connector Manager —the Windows framework that handles Type-C connection logic. – pnp0ca0 is a PnP ID often associated
Generic Windows drivers may not suffice. The most reliable drivers come from your computer manufacturer (e.g., Dell, HP, Lenovo, Asus, MSI). Visit the official support website for your specific laptop or motherboard model, download, and install the latest , BIOS , and Thunderbolt/USB-C drivers.
The hardware ID is the universal Plug and Play (PnP) identifier for the UCM-UCSI ACPI Device Go to product viewer dialog for this item.
If your external displays or Type-C chargers have stopped responding due to a PNP0CA0 error, work through these diagnostic procedures from easiest to most advanced. Step 1: Execute a Full Hardware Power Cycle