As an example, the amount of upower events when connecting/disconnecting the usb cable (charger) on mako: root@ubuntu-phablet:/sys# upower -m Monitoring activity from the power daemon. Press Ctrl+C to cancel. [03:54:38.613] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:38.616] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:38.620] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:38.621] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:38.621] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:38.622] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:38.624] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:38.632] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:38.633] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:38.634] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:38.636] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:38.636] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.122] device changed: /org/freedesktop/UPower/devices/line_power_pm8921_dc [03:54:39.128] device changed: /org/freedesktop/UPower/devices/line_power_pm8921_dc [03:54:39.129] device changed: /org/freedesktop/UPower/devices/line_power_pm8921_dc [03:54:39.129] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.130] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.131] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.131] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.131] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.132] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.132] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.133] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.133] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.134] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.134] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.143] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.144] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.144] daemon changed: [03:54:39.427] device changed: /org/freedesktop/UPower/devices/line_power_pm8921_dc [03:54:39.427] device changed: /org/freedesktop/UPower/devices/line_power_pm8921_dc [03:54:39.428] device changed: /org/freedesktop/UPower/devices/line_power_pm8921_dc [03:54:39.430] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.431] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.432] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.432] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.433] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.433] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.434] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.434] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.436] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.436] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.437] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:39.437] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:40.357] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:40.358] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:40.358] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:40.358] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:40.359] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:40.359] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:40.359] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:40.360] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:40.360] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:40.360] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:40.361] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:40.361] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:41.140] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:41.141] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:41.142] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:41.142] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:41.143] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:41.144] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:41.145] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:41.145] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:41.146] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:41.146] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:41.147] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:41.148] device changed: /org/freedesktop/UPower/devices/battery_battery -> Disconnect [03:54:45.456] device changed: /org/freedesktop/UPower/devices/line_power_pm8921_dc [03:54:45.456] device changed: /org/freedesktop/UPower/devices/line_power_pm8921_dc [03:54:45.457] device changed: /org/freedesktop/UPower/devices/line_power_pm8921_dc [03:54:45.457] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:45.458] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:45.458] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:45.458] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:45.459] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:45.459] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:45.459] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:45.459] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:45.460] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:45.460] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:45.460] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:45.460] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:45.461] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:45.461] daemon changed: [03:54:46.154] device changed: /org/freedesktop/UPower/devices/line_power_pm8921_dc [03:54:46.155] device changed: /org/freedesktop/UPower/devices/line_power_pm8921_dc [03:54:46.155] device changed: /org/freedesktop/UPower/devices/line_power_pm8921_dc [03:54:46.156] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:46.156] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:46.157] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:46.157] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:46.157] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:46.158] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:46.158] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:46.158] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:46.159] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:46.159] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:46.159] device changed: /org/freedesktop/UPower/devices/battery_battery [03:54:46.159] device changed: /org/freedesktop/UPower/devices/battery_battery