Ubuntu – Battery status is slow to update

16.04batterylaptop

I have a 2008 MacBook Air (model A1237) with Ubuntu 16.04 LTS installed on it.

I managed to solve some other problems, but I can't figure out how to find a solution to this one…

Basically the battery status does not update very quickly… This leads to shut downs of the computer when the shown battery percentage is still 50%…

Another thing that happens is that, when plugging in the power cord, it takes about 2 minutes to update, even though the laptop is charging. This means that when I'm working on stuff and the computer is running out of battery I can't tell that it's happening and the computer shuts down or goes to stand-by without warning.

Any solutions? Thanks a lot 🙂

Best Answer

I have this problem as well. This is not a solution but workarounds that work for me I have found:

acpi shows the correct battery state and charging status.

sudo service upower restart forces the battery status of upower to update. I would like this to happen every time I resume my computer from hibernation so after I charge my laptop I can actually see the progress. I've come up with the following script that runs on wake:

# Restart upower on wake (put in /lib/systemd/system-sleep/)
#!/bin/sh
case $1
  post)
    service upower restart ;;
esac

I would love a real solution to this problem. I'll update my answer if I can find one.

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Ubuntu – Battery Status In Panel Does Not Change Or Give Low Battery Warning (Ubuntu 12.04)

In the terminal window giving the command:

sudo aptitude reinstall gnome-power-manager

Worked for me on the same issue, give it a try.

Ubuntu – Battery indicator doesn’t change its status (but after reboot)

This might be a little weird better answer if your problem is still not solved. I wrote a small python script to show the battery status and its percentage. But the only problem is that you need to run the script every time you need to see the status.

from subprocess import Popen,PIPE
process=Popen(['upower','-i','/org/freedesktop/UPower/devices/battery_BAT0'],stdout=PIPE)
process1=Popen(['grep','-E','state|to\ full|percentage'],stdin=process.stdout,stdout=PIPE)

answer=process1.stdout.read().split('\n')
answer.pop()
final=[]
for i in range(len(answer)):
    temp=answer[i].split(':')
    final.append(temp[0].strip(' ')+' : '+temp[1].strip(' '))

string=''
for i in final:
    string+=i+'\n
string=string.strip('\n')

Popen(['notify-send',string])

Best Answer

Related Solutions

Ubuntu – Battery Status In Panel Does Not Change Or Give Low Battery Warning (Ubuntu 12.04)

Ubuntu – Battery indicator doesn’t change its status (but after reboot)

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