Device: /org/freedesktop/UPower/devices/DisplayDevice power supply: no updated: 2020年05月15日 星期五 14时56分10秒 (4505 seconds ago) has history: no has statistics: no unknown warning-level: none icon-name: '' Daemon: daemon-version: 0.99.4 on-battery: no lid-is-closed: no lid-is-present: no critical-action: PowerOff