[Bugme-new] [Bug 41592] New: Laptop batteries still not detected

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=41592

           Summary: Laptop batteries still not detected
           Product: ACPI
           Version: 2.5
    Kernel Version: 3.0.3
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: EC
        AssignedTo: acpi_ec at kernel-bugs.osdl.org
        ReportedBy: killford at yahoo.com
        Regression: No


Many people were hoping bug 15707 would bring resolution, but still no joy.
So here goes again:
For me the laptop is a Toshiba L645. The battery shows as not present in
/proc/acpi/battery/info and the ac adapter status reports either online
or offline but never changes when its plugged or unplugged.
The two workarounds are to customize the DSDT, or patch the ec driver as shown
in bug 15707 or even better as in ACPCIA bug 875.
This laptop comes preinstalled with windows 7 and battery/acad works in that.
And to answer a question from bug 15707, windows xp does handle the battery
and ac functions correctly, so windows has been "orphan _reg" capable for a
long
time. Hope this helps, any information or testing I'd be more than happy to
provide.

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