pemmican-mon
Synopsis
usage: pemmican-mon [-h] [--help-all] [--help-gapplication]
[--gapplication-service]
Options
- -h, --help
show the help message and exit
- --help-all
show all available help options and exit
- --help-gapplication
show help options specific to GLib.Application and exit
- --gapplication-service
run the application in GApplication service mode (for DBus service files)
Usage
pemmican-mon is intended to be a background service, launched as a user-slice systemd service by the “graphical-session” target. It monitors udev for power supply related events, reporting those of interest via the freedesktop notification service.
Power supply undervolt (typically reported in the event the supply drops below
4.8V) is likely the most important event the application warns about. If you
wish to suppress this warning for your user, touch the file
~/.config/pemmican/undervolt.inhibit
. If you wish to suppress this warning system-wide,
touch the file /etc/xdg/pemmican/undervolt.inhibit
.
Warning
It is strongly recommended that any such notice is heeded, as brownout is very likely to lead to any manner of other (hard to predict or replicate) issues up to and including data corruption.
Put simply, suppressing this warning is probably a very bad idea!
USB over-current is the other event the application will warn about. This occurs when peripherals attached to the USB ports attempt to draw more current that permitted. If the Pi 5 is being supplied by a PSU that did not negotiate a 5A feed at boot time, the USB ports will be limited in their supply and this warning is more likely.
If you wish to suppress this warning for your individual user, touch the file
~/.config/pemmican/overcurrent.inhibit
. To suppress this warning system-wide, touch
/etc/xdg/pemmican/overcurrent.inhibit
.
Environment
Because the notifications generated by this application are capable of
launching a web-browser (via the “More Information” action), the script will
also bail with an error in the event that DISPLAY
or WAYLAND_DISPLAY
are not found in the environment at startup.
See Also
The freedesktop notifications specification.
Bugs
Please report bugs at: https://github.com/waveform80/pemmican/issues