Invert the logic? Perhaps just look for any /sys/class/power_supply/BAT?/current_now that is non-zero? If any found, it's running on battery. Else it must be on a mains-supply.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1980991 Title: /usr/sbin/on_ac_power incorrectly reporting ac power status To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/powermgmt-base/+bug/1980991/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
