Miscellaneous options in config.txt

avoid_warnings

The warning symbols can be disabled using this option, although this is not advised.

avoid_warnings=1 disables the warning overlays. avoid_warnings=2 disables the warning overlays, but additionally allows turbo mode even when low-voltage is present.

logging_level

Sets the Videocore logging level. The value is a Videocore-specific bitmask.

arm_64bit

If set, this forces the kernel loading system to assume a 64-bit kernel.

include

Causes the content of the specified file to be inserted into the current file.

For example, adding the line include extraconfig.txt to config.txt will include the content of extraconfig.txt file in the config.txt file.