Re: AC adapter status wrong after resume (swsusp, pmdsik)

[Micha Feigin <michf-+lLcF8/aw9x6auLlOhE+pQ@public.gmane.org>]

On Mon, Mar 22, 2004 at 04:46:54PM +0100, Romano Giannetti wrote:
> Dear sirs,
> 
>       Iam an user of linux 2.6.x on a Vaio FX701 laptop. I found a little
>       problem with AC charger status and the suspend/resume software, and so
>       I copy this message to your list, after a kernel developer suggested
>       me to do so. 
> 
>       I am not subscribed to this list, not yet... 
> 
>       Thank you  in advance,
>                    Romano Giannetti
> 
> 

I saw this same problem with swsusp2. The solution was to compile the
battery support as a module, unload it before suspend and reload it
after resume.

>       
> >    	I think I found a problem with ACPI and disk-suspend "swsusp" option
> >         of 2.6.4 kernel. 
> >         
> >         In a few words: when resuming the "ac adapter status" would not
> >         refresh: if I suspend the laptop with the AC adapter on, then on
> >         resuming ACPI -v will report AC on even if I have plugged out the
> >         charger. Plugging the charger in and out will resume normal
> >         behaviour. I discovered it because cpufreqd would not lower the CPU
> >         clock after the resume... 
> 
> -- 
> Romano Giannetti             -  Univ. Pontificia Comillas (Madrid, Spain)
> Electronic Engineer - phone +34 915 422 800 ext 2416  fax +34 915 596 569
> 
> 
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