http://bugzilla.kernel.org/show_bug.cgi?id=8768
Summary: ACPI battery power indicator jumps from $ACTUAL % to 0%
and back
Product: ACPI
Version: 2.5
KernelVersion: 2.6.20-15-lowlatency (ubuntu 7.04)
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Battery
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
Most recent kernel where this bug did not occur: None that I know of
Distribution: Kubuntu 7.04
Hardware Environment: Zepto ZNote 4200/Compal CL56
Software Environment:
Problem Description:
The problem was first described on [EMAIL PROTECTED]:
> My notebook is behaving somewhat oddly. The KDE battery indicator
> usually shows the right amount of battery power left, although every now
> and then, it jumps to a value in the range 0-10%, and then jumps back.
> This is quite annoying, because it gives of all sorts of warnings about
> imminent power failure.
>
> I'm running kubuntu 7.04 with 2.6.20-15-generic from standard packages,
> on a Zepto 4200 (rebranded Compal CL56)
>
> It _seems_ -- I'm not quite sure about the causality of this -- that the
> following error messages turn up in dmesg when the jump happens:
>
> ...
> [577843.068000] ACPI Error (psparse-0537): Method parse/execution failed
> [\_SB_.PCI0.LPC0.BAT1._BST] (Node df853608), AE_NOT_FOUND
> [577843.068000] ACPI Exception (acpi_battery-0207): AE_NOT_FOUND,
> Evaluating _BST [20060707]
> [577873.068000] ACPI Error (psargs-0355): [PBST] Namespace lookup
> failure, AE_NOT_FOUND
> [577873.068000] ACPI Error (psparse-0537): Method parse/execution failed
> [\_SB_.PCI0.LPC0.BAT1._BST] (Node df853608), AE_NOT_FOUND
> [577873.068000] ACPI Exception (acpi_battery-0207): AE_NOT_FOUND,
> Evaluating _BST [20060707]
> [577903.080000] ACPI Error (psargs-0355): [PBST] Namespace lookup
> failure, AE_NOT_FOUND
> [577903.080000] ACPI Error (psparse-0537): Method parse/execution failed
> [\_SB_.PCI0.LPC0.BAT1._BST] (Node df853608), AE_NOT_FOUND
> [577903.080000] ACPI Exception (acpi_battery-0207): AE_NOT_FOUND,
> Evaluating _BST [20060707]
> [577933.076000] ACPI Error (psargs-0355): [PBST] Namespace lookup
> failure, AE_NOT_FOUND
> [577933.076000] ACPI Error (psparse-0537): Method parse/execution failed
> [\_SB_.PCI0.LPC0.BAT1._BST] (Node df853608), AE_NOT_FOUND
> [577933.076000] ACPI Exception (acpi_battery-0207): AE_NOT_FOUND,
> Evaluating _BST [20060707]
> [577963.068000] ACPI Error (psargs-0355): [PBST] Namespace lookup
> failure, AE_NOT_FOUND
> [577963.068000] ACPI Error (psparse-0537): Method parse/execution failed
> [\_SB_.PCI0.LPC0.BAT1._BST] (Node df853608), AE_NOT_FOUND
> [577963.068000] ACPI Exception (acpi_battery-0207): AE_NOT_FOUND,
> Evaluating _BST [20060707]
> ...
>
> Maybe it has nothing to do with it? It seems to be battery-related, at
> least.
>
> Is there something else I can do to help debug the cause of these error
> messages and/or the battery problem?
>
> I've attached the output of dmidecode and acpidump, in case it's useful.
Steps to reproduce:
Simply run the computer without AC-power, and the problem will manifest itself.
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