[arch-general] Battery question about a Firmware Bug in logs.

[Jason Melton]

On Thu, Jan 5, 2012 at 8:53 AM, Don Juan <donjuansjiz at gmail.com> wrote:
>
> do you know if changing the numbers in say VOLTAGE_NOW to match min on
> mine would do anything? I know I can just try but is there something bad
> that could happen? At least you have the same kernel message as me and
> basically the same laptop as me. I wish I could get mine to charge that
> close to full again while using Arch.
>
> Thanks for posting that though makes me feel better
>

I honestly don't know enough to say. I've never bothered with the battery
life (I'm almost always plugged in), so this is an area I've never
researched.

I did experiment a little with unplugging and seeing what happens, all of
these were run immediately after one another, immediately after unplugging
the power:

[✍]  /sys/class/power_supply/BAT1 $ cat uevent


POWER_SUPPLY_NAME=BAT1
POWER_SUPPLY_STATUS=Discharging
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_TECHNOLOGY=Li-ion
POWER_SUPPLY_CYCLE_COUNT=0
POWER_SUPPLY_VOLTAGE_MIN_DESIGN=12500000
POWER_SUPPLY_VOLTAGE_NOW=12326000
POWER_SUPPLY_CURRENT_NOW=2340000
POWER_SUPPLY_CHARGE_FULL_DESIGN=8000000
POWER_SUPPLY_CHARGE_FULL=7245000
POWER_SUPPLY_CHARGE_NOW=7135000
POWER_SUPPLY_MODEL_NAME=NS2P3SZNJ5WR
POWER_SUPPLY_MANUFACTURER=SANYO
POWER_SUPPLY_SERIAL_NUMBER=134
[✍]  /sys/class/power_supply/BAT1 $ cat uevent


POWER_SUPPLY_NAME=BAT1
POWER_SUPPLY_STATUS=Discharging
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_TECHNOLOGY=Li-ion
POWER_SUPPLY_CYCLE_COUNT=0
POWER_SUPPLY_VOLTAGE_MIN_DESIGN=12500000
POWER_SUPPLY_VOLTAGE_NOW=12319000
POWER_SUPPLY_CURRENT_NOW=2317000
POWER_SUPPLY_CHARGE_FULL_DESIGN=8000000
POWER_SUPPLY_CHARGE_FULL=7245000
POWER_SUPPLY_CHARGE_NOW=7131000
POWER_SUPPLY_MODEL_NAME=NS2P3SZNJ5WR
POWER_SUPPLY_MANUFACTURER=SANYO
POWER_SUPPLY_SERIAL_NUMBER=134
[✍]  /sys/class/power_supply/BAT1 $ cat uevent


POWER_SUPPLY_NAME=BAT1
POWER_SUPPLY_STATUS=Discharging
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_TECHNOLOGY=Li-ion
POWER_SUPPLY_CYCLE_COUNT=0
POWER_SUPPLY_VOLTAGE_MIN_DESIGN=12500000
POWER_SUPPLY_VOLTAGE_NOW=12321000
POWER_SUPPLY_CURRENT_NOW=2442000
POWER_SUPPLY_CHARGE_FULL_DESIGN=8000000
POWER_SUPPLY_CHARGE_FULL=7245000
POWER_SUPPLY_CHARGE_NOW=7127000
POWER_SUPPLY_MODEL_NAME=NS2P3SZNJ5WR
POWER_SUPPLY_MANUFACTURER=SANYO
POWER_SUPPLY_SERIAL_NUMBER=134
[✍]  /sys/class/power_supply/BAT1 $ cat uevent


POWER_SUPPLY_NAME=BAT1
POWER_SUPPLY_STATUS=Discharging
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_TECHNOLOGY=Li-ion
POWER_SUPPLY_CYCLE_COUNT=0
POWER_SUPPLY_VOLTAGE_MIN_DESIGN=12500000
POWER_SUPPLY_VOLTAGE_NOW=12315000
POWER_SUPPLY_CURRENT_NOW=2374000
POWER_SUPPLY_CHARGE_FULL_DESIGN=8000000
POWER_SUPPLY_CHARGE_FULL=7245000
POWER_SUPPLY_CHARGE_NOW=7119000
POWER_SUPPLY_MODEL_NAME=NS2P3SZNJ5WR
POWER_SUPPLY_MANUFACTURER=SANYO
POWER_SUPPLY_SERIAL_NUMBER=134