| Previous | Next |
| STATUS_GRAPHICS_I2C_DEVICE_DOES_NOT_EXIST | STATUS_GRAPHICS_I2C_ERROR_RECEIVING_DATA |
STATUS_GRAPHICS_I2C_ERROR_TRANSMITTING_DATA
STATUS_GRAPHICS_I2C_ERROR_TRANSMITTING_DATA places the failure on the outgoing side of an I2C monitor-control transaction. It does not establish that the monitor returned malformed DDC/CI data; no valid reply is required for this status to occur.
Keep the failing stage explicit in diagnostics: a write failure, a receive failure, a malformed response, and an unsupported VCP feature lead to different investigations. The DDC/CI command and the particular physical-monitor handle are more useful than a generic “brightness control failed” message.
What to retain
- Record the target monitor, operation type, VCP command where applicable, and connector path.
- Compare the same operation on the same physical output after a deliberate re-enumeration, not through a cached handle after topology changes.
- Do not reinterpret this as a checksum failure; checksum applies to a received message that can be examined.
References
Looking for a different code? Search another status or error code.