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fdservices

Member

From: France

Registered: 2012-02-06

Posts: 413

[SOLVED] Toshiba Satellite - battery reporting problems

I am still having problems with my wife's laptop power manager.
The laptop is a Toshiba Satellite LE850-162
CPU: Dual Core Intel Pentium B960 (-MCP-) speed/min/max: 1884/800/2200 MHz Kernel: 4.20.1-arch1-1-ARCH x86_64
Up: 2h 15m Mem: 566.8/7865.1 MiB (7.2%) Storage: 596.17 GiB (73.2% used) Procs: 177 Shell: bash 5.0.0 inxi: 3.0.30

The battery report shows that it is empty.

$ ls  /sys/class/power_supply/
AC0  BAT0
$ ls BAT0
alarm           charge_full         current_now  manufacturer  present        subsystem   uevent
capacity        charge_full_design  cycle_count  model_name    serial_number  technology  voltage_min_design
capacity_level  charge_now          device       power         status         type        voltage_now
$ more *
::::::::::::::
alarm
::::::::::::::
0
::::::::::::::
capacity
::::::::::::::
0
::::::::::::::
capacity_level
::::::::::::::
Normal
::::::::::::::
charge_full
::::::::::::::
6000000
::::::::::::::
charge_full_design
::::::::::::::
6000000
::::::::::::::
charge_now
::::::::::::::
::::::::::::::
current_now
::::::::::::::
::::::::::::::
cycle_count
::::::::::::::
0

*** device: directory ***

::::::::::::::
manufacturer
::::::::::::::
TKBSS
::::::::::::::
model_name
::::::::::::::
NS2P3SZMC4WR

*** power: directory ***

::::::::::::::
present
::::::::::::::
1
::::::::::::::
serial_number
::::::::::::::
  
::::::::::::::
status
::::::::::::::
Unknown

*** subsystem: directory ***

::::::::::::::
technology
::::::::::::::
Li-ion
::::::::::::::
type
::::::::::::::
Battery
::::::::::::::
uevent
::::::::::::::
POWER_SUPPLY_NAME=BAT0
POWER_SUPPLY_STATUS=Unknown
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_TECHNOLOGY=Li-ion
POWER_SUPPLY_CYCLE_COUNT=0
POWER_SUPPLY_VOLTAGE_MIN_DESIGN=14800000
POWER_SUPPLY_CHARGE_FULL_DESIGN=6000000
POWER_SUPPLY_CHARGE_FULL=6000000
POWER_SUPPLY_CAPACITY=0
POWER_SUPPLY_CAPACITY_LEVEL=Normal
POWER_SUPPLY_MODEL_NAME=NS2P3SZMC4WR
POWER_SUPPLY_MANUFACTURER=TKBSS
POWER_SUPPLY_SERIAL_NUMBER=  
::::::::::::::
voltage_min_design
::::::::::::::
14800000
::::::::::::::
voltage_now
::::::::::::::

There is one other strange result which I do not understand

$ cat charge_now
cat: charge_now: No such device

Perhaps it is due to a module problem

$ lsmod | grep battery
battery                24576  0
$ lsmod | grep acpi
toshiba_acpi           61440  0
industrialio           86016  1 toshiba_acpi
sparse_keymap          16384  2 toshiba_acpi,toshiba_wmi
rfkill                 28672  6 toshiba_acpi,toshiba_bluetooth,bluetooth,cfg80211
acpi_cpufreq           28672  1
wmi                    32768  3 toshiba_acpi,toshiba_wmi,wmi_bmof
i8042                  32768  1 toshiba_acpi

I do not think that it is a battery problem. The laptop runs (without load) for approximately 5 hours on battery.
Windows correctly shows the battery status.

Any help would be appreciated

Andrew

Last edited by fdservices (2019-02-12 08:50:42)

fdservices

Member

From: France

Registered: 2012-02-06

Posts: 413

Re: [SOLVED] Toshiba Satellite - battery reporting problems

So I booted from an up to date  USB live Arch media and the result was exactly the same.

When I booted up from a USB live Linux Mint media, the power reporting was correct, The Linux Mint distro was running 4.15.0-20.

So I still suspect a modules problem.

Andrew

fdservices

Member

From: France

Registered: 2012-02-06

Posts: 413

Re: [SOLVED] Toshiba Satellite - battery reporting problems

Downgrading to the linux-lts solved the problem, so it seems that it was indeed something to do with the release of Kernel: 4.20

Andrew