bug : Dell Inspiron 15 7000 : battery detection only after AC power adapter event.

bug : Dell Inspiron 15 7000 : battery detection only after AC power adapter event.

[xavier.gnata]

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Hi,

When I boot a Dell 15" serie 7000 with or without it AC power adapter no 
battery is detected:
acpi -i -b -a
Adapter 0: off-line

As soon as I plug or unplug the AC adapter, the battery is detected:
acpi -i -b -a
Battery 0: Charging, 62%, 01:13:00 until charged
Battery 0: design capacity 3950 mAh, last full capacity 3850 mAh = 97%
Adapter 0: on-line

Attached : dmesg and dsdt.dsl. What else do you need?
Looks like a buggy dsdt table but I'm not an expert.

The bug is the same on 3.17-rc1, 3.16.1 and 3.13.

Xavier

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Re: bug : Dell Inspiron 15 7000 : battery detection only after AC power adapter event.

[xavier.gnata]

On 18/08/2014 13:18, xavier.gnata@gmail.com wrote:
> Hi,
>
> When I boot a Dell 15" serie 7000 with or without it AC power adapter 
> no battery is detected:
> acpi -i -b -a
> Adapter 0: off-line
>
> As soon as I plug or unplug the AC adapter, the battery is detected:
> acpi -i -b -a
> Battery 0: Charging, 62%, 01:13:00 until charged
> Battery 0: design capacity 3950 mAh, last full capacity 3850 mAh = 97%
> Adapter 0: on-line
>
> Attached : dmesg and dsdt.dsl. What else do you need?
> Looks like a buggy dsdt table but I'm not an expert.
>
> The bug is the same on 3.17-rc1, 3.16.1 and 3.13.
>
> Xavier

As a workaround one can boot with  acpi_osi=Linux . I don't see any side 
effects.

Xavier