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hans
n00b
Joined: 24 Sep 2006
Posts: 7
Location: Princeton NJ
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 Posted: Wed Nov 29, 2006 1:14 am Post subject: acpi misreports battery status |
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| I'm running a 2.6.16 kernel (suspend2-sources) on a Dell Latitude d610. In /proc/acpi/battery/BAT0/state it gives remaining capacity as the manufacturer's reported capacity but in /proc/acpi/battery/BAT0/info it gives last full capacity as something a bit lower. Isn't that a bug?? Shouldn't the remaining capacity always be less than or equal to the last full capacity? |
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pianosaurus
l33t
Joined: 19 Apr 2004
Posts: 944
Location: Bash$
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| Posted: Wed Nov 29, 2006 3:46 am Post subject: |
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Mine shows remaining capacity as the manufacturers reported when the AC-adapter is plugged in. As soon as I disconnect it, it drops to last full capacity. In other words, remaining capacity shows to much when the AC-adapter is plugged in and the battery is fully charged.
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hans
n00b
Joined: 24 Sep 2006
Posts: 7
Location: Princeton NJ
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| Posted: Wed Nov 29, 2006 11:18 am Post subject: |
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| Cuber: Wouldn't you say that is a bug in acpi? Should it be reported? To whom? |
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pianosaurus
l33t
Joined: 19 Apr 2004
Posts: 944
Location: Bash$
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| Posted: Fri Dec 01, 2006 10:24 am Post subject: |
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I would guess ACPI gets this incorrect information from the hardware/firmware, and that it is a known problem (since the last full capacity is not updated when the AC-adapter is plugged in). Whomever wrote that part of the kernel would know, though. I will probably go on ignoring it.
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