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SubjectRe: ACPI battery info failure after some period of time, 2.6.3-x and up
On 12:29 pm Mar 4 David Ford <> wrote:
> powerix root # cat /proc/acpi/battery/BAT0/state
> present: yes
> ERROR: Unable to read battery status
> powerix root # dmesg -c
> ACPI-0279: *** Error: Looking up [BST0] in namespace,
> AE_ALREADY_EXISTS ACPI-1120: *** Error: Method execution failed
> [\_SB_.BAT0._BST] (Node e7bd7680), AE_ALREADY_EXISTS
> powerix root # uname -r
> 2.6.4-rc1
> This has been going on since about 2.6.3-rc something. Some while
> after reading the /proc files, the ability to read the battery
> information gets munged.

Same here on a Toshiba 1410-s173 noteboook:

[logger] ACPI group battery / action battery is not defined
[kernel] ACPI-0279: *** Error: Looking up [BUFF] in namespace,

I don't think it's happened in less than 24 hours of uptime, during which
everything is good. I have been using suspend to ram daily if that matters
(echo 3 > /proc/acpi/sleep).
Linux version 2.6.3-wolk1.0 (root@jackass) (gcc version 3.3.3 20040217
(Gentoo Linux 3.3.3, propolice-3.3-7)) #1 Thu Feb 26 16:18:24 CST 2004

\__ Jason Munro

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