Runtime Warnings¶

Klipper can display runtime warnings during operation when it detects potential issues with your configuration or firmware. Unlike deprecated options, these warnings typically indicate a mismatch between your configuration and the actual hardware state.

Below you can find a list of commonly encountered runtime warnings along with instructions on how to resolve them.

MCU '<mcu name>' configured for <X>Mhz but running at <Y>Mhz!¶

This can happen with a few MCUs if incorrect settings have been made in make menuconfig. To fix this warning, check your firmware settings again and then reflash the specified MCU with the new firmware.