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From: Micha Feigin <michf-+lLcF8/aw9x6auLlOhE+pQ@public.gmane.org>
To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: Wrong AC state
Date: Tue, 25 May 2004 21:56:03 +0300	[thread overview]
Message-ID: <20040525185603.GE10355@luna.mooo.com> (raw)
In-Reply-To: <40B346FC.9090908-VDBW1ITIq+y+DWMCimbbknqWYbMAw+HU@public.gmane.org>

On Tue, May 25, 2004 at 03:15:40PM +0200, Martin Ginkel wrote:
> Dear ACPI-Folks,
> 
> I am trying to debug the code for reading the ac_adapter state.
> On my laptop (Fujitsu-Siemens Amilo D 8830) this seems to be partially 
> broken.
> The /proc/ac_adapter/AC0/state has a value on-line or off-line from 
> boot-time and doesn't change later on.
> I already switched on debugging in the ac-module and the
> acpi_ac_get_state function gets called every time I cat the state-file.
> But it obviously reads the same value again and again.
> 
> Anyways: plugging the AC in and out get's recognized by the hardware:
> The display dims up and down, using Windows the correct state is shown
> and in Linux ACPI is getting 2 IRQs (according to /proc/interrupts).
> 

Try also checking the battery module. There is (or was) a bug that
after suspend the machine would exhibit the same behavior you are
describing and a workaround was to unload the battery module before
suspend and reload it after.

> Does anyone have suggestions where to start debugging?
> 
> 	Best regards
> 	Martin
> 
> 
> 
> 
> 
> -- 
> +-[Martin Ginkel]-------------[mailto:mginkel(at)mpi-magdeburg.mpg.de]-+
> | MPI Magdeburg, Zi S2.09    Sandtorstr. 1, D-39106 Magdeburg, Germany |
> |                                                                      |
> |                                                                      |
> +-[tel/fax: +49 391 6110 482/529]----[http://www.mpi-magdeburg.mpg.de]-+
> 
> 
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  parent reply	other threads:[~2004-05-25 18:56 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-05-25 13:15 Wrong AC state Martin Ginkel
     [not found] ` <40B346FC.9090908-VDBW1ITIq+y+DWMCimbbknqWYbMAw+HU@public.gmane.org>
2004-05-25 18:56   ` Micha Feigin [this message]
2004-05-26 22:08   ` Martin Ginkel
     [not found]     ` <40B5156F.5020409-jy7zG81Tlw8@public.gmane.org>
2004-05-28 11:16       ` Øystein Gisnås
2004-05-28 15:03       ` Stefan Seyfried
  -- strict thread matches above, loose matches on Subject: below --
2004-05-26 22:16 Moore, Robert

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