我在 16.04 版中使用 Unity。出于某种原因,我没有收到电池电量不足的弹出通知。我必须依靠顶部面板中的电池图标来查看电池是否处于“电池电量不足”状态。这是 16.04 版中的默认行为吗?或者我没有收到电池电量不足的弹出窗口?
答案1
这不正常,我正在运行 16.04 并弹出窗口,但我正在使用 gnome shell。
您可以制作一个脚本来向您发送消息。
battery_level=`acpi -b | grep -P -o '[0-9]+(?=%)'`
if [ $battery_level -le 10 ]
then
notify-send "Battery low" "Battery level is ${battery_level}%!"
fi
然后创建一个 cron 作业并每隔几分钟运行一次。
答案2
尝试indicator-power
使用此命令重新安装:
sudo apt-get install --reinstall indicator-power
如果这不能解决问题,请考虑使用我之前的答案中提供的电池监控脚本:https://askubuntu.com/a/603322/295286
下面是一个 Python 脚本,它可以在电池电量超过一定百分比时通知您,并在电量低于 10% 时暂停系统。使用方法很简单:
python battery_monitor.py INT
其中 INT 是您应该收到通知的所需电池百分比的整数值,例如30
。
您还可以将上述命令添加到启动应用程序中,以便在每次登录 Unity 会话时启动此脚本
源代码
根据 OP 在聊天和评论中的请求,该脚本现在接受两个参数,第一个用于放电通知,第二个用于充电通知。
也可作为Github Git
#!/usr/bin/env python
from gi.repository import Notify
import subprocess
from time import sleep, time
from sys import argv
import dbus
def send_notification(title, text):
try:
if Notify.init(argv[0]):
n = Notify.Notification.new("Notify")
n.update(title, text)
n.set_urgency(2)
if not n.show():
raise SyntaxError("sending notification failed!")
else:
raise SyntaxError("can't initialize notification!")
except SyntaxError as error:
print(error)
if error == "sending notification failed!":
Notify.uninit()
else:
Notify.uninit()
def run_cmd(cmdlist):
try:
stdout = subprocess.check_output(cmdlist)
except subprocess.CalledProcessError:
pass
else:
if stdout:
return stdout
def run_dbus_method(bus_type, obj, path, interface, method, arg):
if bus_type == "session":
bus = dbus.SessionBus()
if bus_type == "system":
bus = dbus.SystemBus()
proxy = bus.get_object(obj, path)
method = proxy.get_dbus_method(method, interface)
if arg:
return method(arg)
else:
return method()
def suspend_system():
run_dbus_method('session',
'com.canonical.Unity',
'/com/canonical/Unity/Session',
'com.canonical.Unity.Session',
'Suspend', 'None')
def get_battery_percentage():
output = run_cmd(['upower', '--dump']).decode().split('\n')
found_battery = False
for line in output:
if 'BAT' in line:
found_battery = True
if found_battery and 'percentage' in line:
return line.split()[1].split('%')[0]
def main():
end = time()
battery_path = ""
for line in run_cmd(['upower', '-e']).decode().split('\n'):
if 'battery_BAT' in line:
battery_path = line
break
while True:
notified = False
while subprocess.call(['on_ac_power']) == 0:
sleep(0.25)
run_dbus_method('system', 'org.freedesktop.UPower',
battery_path, 'org.freedesktop.UPower.Device',
'Refresh', 'None')
battery_percentage = int(get_battery_percentage())
if battery_percentage == int(argv[2]) and not notified:
subprocess.call( ['zenity', '--info','--text', 'Battery reached' + argv[2] + '%' ] )
notified = True
while subprocess.call(['on_ac_power']) == 1:
sleep(0.25)
run_dbus_method('system', 'org.freedesktop.UPower',
battery_path, 'org.freedesktop.UPower.Device',
'Refresh', 'None')
battery_percentage = int(get_battery_percentage())
if battery_percentage <= int(argv[1]):
if battery_percentage <= 10:
send_notification('Low Battery',
'Will suspend in 60 seconds')
sleep(60)
suspend_system()
continue
if end < time():
end = time() + 600
send_notification('Low Battery', 'Plug in your charger')
if __name__ == '__main__':
main()
答案3
是的,这是正常的。我编写了一个简单的 bash 脚本来设置电池通知。
#!/usr/bin/env bash
# check if acpi is installed.
if [ `dpkg -l | grep acpi | grep -v acpi-support | grep -v acpid | grep -c acpi` -ne 1 ]; then
echo "run 'sudo apt install acpi' then run '$0' again."
exit
fi
if [ $# -eq 1 ] && [ "$1" == "--install" ]; then
echo "installing battery notifier..."
if [ ! -e "$HOME/bin" ]; then
mkdir $HOME/bin
fi
cp $0 $HOME/bin/bn.sh
(crontab -l 2>/dev/null; echo "*/2 * * * * $HOME/bin/bn.sh") | crontab -
else
# check if power adapter is plugged in, if not, check battery status.
if [ -z "`acpi -a | grep on-line`" ]; then
batlvl=`acpi -b | grep -P -o '[0-9]+(?=%)'`
if [ $batlvl -le 15 ] && [ $batlvl -ge 11 ]; then
notify-send "Battery is at $batlvl%. Please plug your computer in."
elif [ $batlvl -le 10 ] && [ $batlvl -ge 6 ]; then
notify-send "Battery is at $batlvl%. Computer will shutdown at 5%."
elif [ $batlvl -le 5 ]; then
notify-send "BATTERY CRITICALLY LOW, SHUTTING DOWN IN 3 SECONDS!"
sleep 3
shutdown -h now
fi
fi
fi
我的也有这个和说明Github 账户。我希望这对您有所帮助并让您更轻松。
答案4
我发现了一款出色的应用程序,可以解决电池电量低、电池电量满等问题。
读这个
http://www.omgubuntu.co.uk/2016/07/ubuntu-battery-monitor-notifications