https://bugzilla.kernel.org/show_bug.cgi?id=204303
Bug ID: 204303
Summary: Wrong battery status with kernel versions 4.17-4.19 on
eeePC
Product: ACPI
Version: 2.5
Kernel Version: 4.19
Hardware: i386
OS: Linux
Tree: Mainline
Status: NEW
Severity: low
Priority: P1
Component: Power-Battery
Assignee: acpi_power-batt...@kernel-bugs.osdl.org
Reporter: jmu...@mail2world.com
Regression: No
With the new Debian Stable (Buster, kernel 4.19.0-5-amd64) the system reported
wrong battery status on ASUS eeePC 1005PG. When discharging, it shows always
100% charge and voltage 65V instead of 12V.
I made some tests with different kernel versions. The bug is in kernel 4.18
(Ubuntu 18.04.02) and 4.19 (Debian Stable). Not affected kernels are 4.9
(Debian Oldstable), 4.15 (Ubuntu 18.04.01) and 5.0 (Ubuntu 19.04).
root@localhost:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/PNP0C0A:00/power_supply/BAT0$
cat manufacturer
ASUS
root@localhost:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/PNP0C0A:00/power_supply/BAT0$
cat model_name
1005PG
Affected Kernel:
uname -a
Linux localhost.localdomain 4.19.0-5-amd64 #1 SMP Debian 4.19.37-5+deb10u1
(2019-07-19) x86_64 GNU/Linux
root@localhost:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/PNP0C0A:00/power_supply/BAT0#
cat status
Discharging
root@localhost:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/PNP0C0A:00/power_supply/BAT0#
cat current_now
1000
root@localhost:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/PNP0C0A:00/power_supply/BAT0#
cat charge_now
4200000
root@localhost:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/PNP0C0A:00/power_supply/BAT0#
cat voltage_now
65535000
Not affected Kernel:
root@localhost:~$ uname -a
Linux localhost.localdomain 4.9.0-9-amd64 #1 SMP Debian 4.9.168-1+deb9u4
(2019-07-19) x86_64 GNU/Linux
root@localhost:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/PNP0C0A:00/power_supply/BAT0$
cat status
Discharging
root@localhost:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/PNP0C0A:00/power_supply/BAT0$
cat current_now
657000
root@localhost:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/PNP0C0A:00/power_supply/BAT0$
cat charge_now
3794000
root@localhost:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/PNP0C0A:00/power_supply/BAT0$
cat voltage_now
12183000
Please can you fix this issue.
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