Bug 36625 – 'cat /proc/acpi/battery/BAT0/info' does not return valid battery info

• Status: RESOLVED UPSTREAM
• Product: Gentoo Linux

[Description Andrew Leong-Sit 2003-12-28 01:00:33 UTC]

When I moved to mm-sources (2.6.0-mm1) from 2.6.0-test11-mm1, the battery info reported by cat /proc/acpi/battery/BAT0/info became invalid:

present:                 yes
design capacity:         0 mWh
last full capacity:      0 mWh
battery technology:      non-rechargeable
design voltage:          0 mV
design capacity warning: 0 mWh
design capacity low:     0 mWh
capacity granularity 1:  0 mWh
capacity granularity 2:  0 mWh
model number:
serial number:
battery type:
OEM info:

test11 was providing valid battery charge data.
========== The ACPI part of .config ========
#
# ACPI (Advanced Configuration and Power Interface) Support
#
CONFIG_ACPI=y
CONFIG_ACPI_BOOT=y
CONFIG_ACPI_INTERPRETER=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_SLEEP_PROC_FS=y
CONFIG_ACPI_AC=m
CONFIG_ACPI_BATTERY=m
CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_FAN=m
CONFIG_ACPI_PROCESSOR=m
CONFIG_ACPI_THERMAL=m
CONFIG_ACPI_ASUS=m
CONFIG_ACPI_TOSHIBA=m
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_BUS=y
CONFIG_ACPI_EC=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_PCI=y
CONFIG_ACPI_SYSTEM=y
CONFIG_ACPI_RELAXED_AML=y
# CONFIG_X86_PM_TIMER is not set

#
# APM (Advanced Power Management) BIOS Support
#
# CONFIG_APM is not set

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_PROC_INTF is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=m
# CONFIG_CPU_FREQ_24_API is not set
CONFIG_CPU_FREQ_TABLE=m

#
# CPUFreq processor drivers
#
CONFIG_X86_ACPI_CPUFREQ=m
# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
# CONFIG_X86_POWERNOW_K6 is not set
# CONFIG_X86_POWERNOW_K7 is not set
# CONFIG_X86_POWERNOW_K8 is not set
# CONFIG_X86_GX_SUSPMOD is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
CONFIG_X86_SPEEDSTEP_ICH=m
CONFIG_X86_SPEEDSTEP_SMI=m
CONFIG_X86_SPEEDSTEP_LIB=m
CONFIG_X86_P4_CLOCKMOD=m
# CONFIG_X86_LONGRUN is not set
# CONFIG_X86_LONGHAUL is not set
==============
I tried having ACPI built into the kernel, but the battery info is still incorrect. I also tried emerging gcc from ~x86, but that doesn't affect anything .

Reproducible: Always
Steps to Reproduce:
1. 
2.
3.




helios root # uname -a
Linux helios 2.6.0-mm1 #5 Wed Dec 24 17:56:44 PST 2003 i686 Mobile Intel(R)
Pentium(R) 4 - M CPU 2.00GHz GenuineIntel GNU/Linux

helios root # emerge --info
Portage 2.0.49-r15 (default-x86-1.4, gcc-3.3.2, glibc-2.3.2-r3, 2.6.0-mm1)
=================================================================
System uname: 2.6.0-mm1 i686 Mobile Intel(R) Pentium(R) 4 - M CPU 2.00GHz
Gentoo Base System version 1.4.3.12
ccache version 2.3 [enabled]
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CFLAGS="-O2 -march=pentium4 -funroll-loops -fprefetch-loop-arrays -pipe"
CHOST="i686-pc-linux-gnu"
COMPILER="gcc3"
CONFIG_PROTECT="/etc /var/qmail/control /usr/kde/2/share/config
/usr/kde/3/share/config /usr/X11R6/lib/X11/xkb /usr/kde/3.1/share/config
/usr/share/config"
CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d"
CXXFLAGS="-O2 -march=pentium4 -funroll-loops -fprefetch-loop-arrays -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="sandbox ccache autoaddcvs"
GENTOO_MIRRORS="http://gentoo.oregonstate.edu
http://distro.ibiblio.org/pub/Linux/distributions/gentoo"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="x86 oss apm avi crypt encode foomaticdb gif gtk2 jpeg libg++ libwww mikmod
mpeg ncurses nls pdflib png quicktime spell truetype xml2 xmms xv zlib gdbm
berkdb slang readline arts svga sdl gpm tcpd ssl perl python esd imlib oggvorbis
X -mozilla pnp pam pcmcia maildir mad opengl nvidia dga pda cdr samba -motif
-gtk cups dvd kde qt -gnome alsa usb nptl acpi java sse mmx sse2"

[Comment 1 Tim Yamin (RETIRED) 2003-12-28 05:00:19 UTC]

Can you confirm this with vanilla 2.6.0?

[Comment 2 Andrew Leong-Sit 2003-12-28 13:35:10 UTC]

I've tested with vanilla 2.6.0 and the battery seems to work fine

I'm running on a Dell Inspiron 8500 BIOS rev A05

[Comment 3 Andrew Leong-Sit 2003-12-29 01:23:20 UTC]

I managed to 'fix' the problem -- there appears to be a problem with the acpi build in mm-sources:

acpi-20031203.patch appears to introduce the battery issue -- when I reverted the acpi patch to be like vanilla 2.6, my battery problems were fixed.

[Comment 4 Tim Yamin (RETIRED) 2003-12-29 01:36:02 UTC]

Thanks. Closing bug, this is a problem which is upstream and not brought on or managed by us.