The debug configuration option controls the amount of logs produced by the modem-manager snap. It is useful for collecting information required to either report a bug or investigate a modem-manager failure.

It is disabled by default and has to be explicitly turned on for usage.

Note that the debug logs may contain sensitive information.

Enable Debug

The modem-manager snap provides a single configuration option which can be used to turn the debug feature either on or off:

  • debug.enable

The option takes a boolean value. The meaning of the possible values are:

  • true: Enable logging debug information
  • false (default): Disable logging debug information

Changing the debug configuration option has immediate effect and also affects future executions of the MM daemon.

Example: Enable debug feature

$ snap set modem-manager debug.enable=true

Example: Disable debug feature.

$ snap set modem-manager debug.enable=false

Viewing logs

The debug information, when enabled, will be available in the journal and can be viewed with:

$ journalctl --no-pager -u snap.modem-manager.modemmanager.service