A script that reacts to acpid events and does the following
- Set backlight brightness to the battery level - decreasing brightness is a good battery-level indicator and a really dim screen means you ought to plug in sometime soon.
- Invokes
tlpandpm-powersavepowersave configurations when battery is discharging or to optimized otherwise. - Hibernates the laptop on a critically low battery level.
sudo -E ./INIT
See /etc/default/laptop-battery-actions for options.
After changes to the defaults file, make sure to reload the acpid service.
service acpid restart
- React to lid events and suspend to disk (as opposed to RAM) if under some threshold.