Ubuntu – Battery not detected


As the title say my laptop battery is not detected in maverick.
I'm using ubuntu since ever and I've never come across this problem.
I have a msi ms-171f vr705 series and everything is working fine except for the battery.

cat: /proc/acpi/battery/BAT1/info: No such device

Best Answer

Usually the Laptop battery is labelled BAT0. Have you tried running:

cat /proc/acpi/battery/BAT0/info

Also have you tried adding acpi=force onto your GRUB command line?

Open a terminal and run the following commands:

  1. sudo gedit /etc/default/grub
  2. Go to the line GRUB_CMDLINE_LINUX_DEFAULT=""
  3. Replace it with GRUB_CMDLINE_LINUX_DEFAULT="acpi=force"
  4. Save your changes.
  5. Run sudo update-grub and reboot.

(If there is something already within the "" at Step 2 just add a space after it and add acpi=force)

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