Public bug reported: On 11.10 a few minutes after reboot on this notebook the battery symbol in the panel turns to no battery available, normal values in the sys interface turn to 'No such device' messages and 'voltage_now' gives a wrong number.
Here is a recent thread http://ubuntuforums.org/showthread.php?t=1865832 and 'BAT1/current_now' gives 'No such device' on post #7 This: ----------- user@box:~$ cat /proc/acpi/battery/BAT1/state present: yes capacity state: ok charging state: charged present rate: 0 mA remaining capacity: 4182 mAh present voltage: 16586 mV user@box:~$ cat /proc/acpi/battery/BAT1/info present: yes design capacity: 4800 mAh last full capacity: 4397 mAh battery technology: rechargeable design voltage: 14800 mV design capacity warning: 0 mAh design capacity low: 0 mAh cycle count: 0 capacity granularity 1: 1 mAh capacity granularity 2: 1 mAh model number: MS-1058 serial number: battery type: LION OEM info: MSI Corp. user@box:~$ cat /sys/class/power_supply/BAT1/ alarm manufacturer technology charge_full model_name type charge_full_design power/ uevent charge_now present voltage_min_design current_now serial_number voltage_now cycle_count status device/ subsystem/ user@box:~$ cat /sys/class/power_supply/BAT1/alarm 0 user@box:~$ cat /sys/class/power_supply/BAT1/charge_full 4397000 user@box:~$ cat /sys/class/power_supply/BAT1/charge_full_design 4800000 user@box:~$ cat /sys/class/power_supply/BAT1/charge_now 4182000 user@box:~$ cat /sys/class/power_supply/BAT1/current_now 0 user@box:~$ cat /sys/class/power_supply/BAT1/cycle_count 0 user@box:~$ cat /sys/class/power_supply/BAT1/manufacturer MSI Corp. user@box:~$ cat /sys/class/power_supply/BAT1/model_name MS-1058 user@box:~$ cat /sys/class/power_supply/BAT1/present 1 user@box:~$ cat /sys/class/power_supply/BAT1/serial_number user@box:~$ cat /sys/class/power_supply/BAT1/status Unknown user@box:~$ cat /sys/class/power_supply/BAT1/technology Unknown user@box:~$ cat /sys/class/power_supply/BAT1/type Battery user@box:~$ cat /sys/class/power_supply/BAT1/voltage_min_design 14800000 user@box:~$ cat /sys/class/power_supply/BAT1/voltage_now 16586000 user@box:~$ cat /proc/acpi/ac_adapter/ADP1/state state: on-line user@box:~$ cat /sys/class/power_supply/ADP1/ device/ online power/ subsystem/ type uevent user@box:~$ cat /sys/class/power_supply/ADP1/online 1 user@box:~$ cat /sys/class/power_supply/ADP1/type Mains ---------------- changes to: user@box:~$ cat /proc/acpi/battery/BAT1/state present: yes capacity state: ok charging state: charged present rate: unknown remaining capacity: unknown present voltage: 10000 mV user@box:~$ cat /proc/acpi/battery/BAT1/info present: yes design capacity: 4800 mAh last full capacity: 4397 mAh battery technology: rechargeable design voltage: 14800 mV design capacity warning: 0 mAh design capacity low: 0 mAh cycle count: 0 capacity granularity 1: 1 mAh capacity granularity 2: 1 mAh model number: MS-1058 serial number: battery type: LION OEM info: MSI Corp. user@box:~$ cat /sys/class/power_supply/BAT1/ cat: /sys/class/power_supply/BAT1/: Ist ein Verzeichnis user@box:~$ cat /sys/class/power_supply/BAT1/alarm 0 user@box:~$ cat /sys/class/power_supply/BAT1/charge_full 4397000 user@box:~$ cat /sys/class/power_supply/BAT1/charge_full_design 4800000 user@box:~$ cat /sys/class/power_supply/BAT1/charge_now cat: /sys/class/power_supply/BAT1/charge_now: Kein passendes Gerät gefunden user@box:~$ LANGUAGE=en_GB:en cat /sys/class/power_supply/BAT1/charge_now cat: /sys/class/power_supply/BAT1/charge_now: No such device user@box:~$ cat /sys/class/power_supply/BAT1/current_now cat: /sys/class/power_supply/BAT1/current_now: Kein passendes Gerät gefunden user@box:~$ LANGUAGE=en_GB:en cat /sys/class/power_supply/BAT1/current_now cat: /sys/class/power_supply/BAT1/current_now: No such device user@box:~$ cat /sys/class/power_supply/BAT1/cycle_count 0 user@box:~$ cat /sys/class/power_supply/BAT1/manufacturer MSI Corp. user@box:~$ cat /sys/class/power_supply/BAT1/model_name MS-1058 user@box:~$ cat /sys/class/power_supply/BAT1/present 1 user@box:~$ cat /sys/class/power_supply/BAT1/serial_number user@box:~$ cat /sys/class/power_supply/BAT1/status Unknown user@box:~$ cat /sys/class/power_supply/BAT1/technology Unknown user@box:~$ cat /sys/class/power_supply/BAT1/type Battery user@box:~$ cat /sys/class/power_supply/BAT1/voltage_min_design 14800000 user@box:~$ cat /sys/class/power_supply/BAT1/voltage_now 10000000 user@box:~$ cat /sys/class/power_supply/ADP1/online 1 user@box:~$ cat /sys/class/power_supply/ADP1/type Mains ** Affects: linux-meta (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/889942 Title: ACPI power_supply battery errors to: No such device To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta/+bug/889942/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
