ERROR_MCA_INVALID_VCP_VERSION - 15201 (0x3B61)
The monitor's VCP Version (0xDF) VCP code returned an invalid version value.
Updated: Feb 21, 2026
Technical Meaning
This error code indicates that the Video Control Protocol (VCP) version returned by a monitor is invalid. The VCP is a protocol used for communication between a video card and a monitor, allowing for various settings such as resolution, refresh rate, and color depth.
Error Details
The specific error message states that the VCP code 0xDF returned an invalid version value. This suggests that either the monitor or the video driver is not correctly implementing the VCP protocol, leading to a version mismatch or incorrect version information being reported.
Usage Context
This error typically occurs during initialization of the display adapter and can be encountered when attempting to configure display settings or when the system attempts to negotiate communication with the monitor. It may also appear in scenarios where the video driver is trying to establish VCP-based communications with a monitor.
Developer Interpretation
Developers should interpret this error as an indication that there might be a mismatch between the expected and actual VCP version, which could lead to improper configuration or functionality of the display settings. This error can also indicate issues with the video driver or the monitor's firmware.
Related Errors
- ERROR_MCA_VCP_VERSION_MISMATCH: A more generic error indicating that the VCP versions do not match.
- ERROR_MCA_INVALID_VCP_COMMAND: An error related to an invalid command being sent over the VCP protocol.
FAQ
Q: What does this error mean?
A: This error indicates that the version of the Video Control Protocol (VCP) reported by the monitor is not valid, leading to potential issues with display configuration or communication between the video card and the monitor.
Q: How can I resolve this issue?
A: Ensure that both the video driver and the monitor's firmware are up-to-date. If the problem persists, check for any known compatibility issues between the specific versions of the video driver and the monitor.
Summary
The ERROR_MCA_INVALID_VCP_VERSION error code is a specific technical indicator that the VCP version reported by the monitor does not meet expectations. Developers should consider this as a sign of potential configuration or communication issues, requiring updates to drivers or firmware.