[Fwd: Re: Dell Inspiron 510m sleep states S3/S4 not working]

[Nate Lawson <nate-Y6VGUYTwhu0@public.gmane.org>]

I have reports that Linux works for S3 on these machines but FreeBSD 
does not.  The Dell Inspiron 510M at least has a problem where the write 
to PM1A in hwsleep.c resets the system instead of entering S3.  I heard 
that Linux had similar problems in the past but now works.  Can someone 
let me know what was going on?

Thanks much,
Nate

-------- Original Message --------
Subject: Re: Dell Inspiron 510m sleep states S3/S4 not working
Date: Sat, 05 Mar 2005 20:02:44 -0500
From: Igor Partola <ipartola-27MbaEWyEdNeoWH0uzbU5w@public.gmane.org>
To: freebsd-acpi-h+KGxgPPiopAfugRpC6u6w@public.gmane.org

Ulrich Spörlein wrote:

>On Thu, 03.03.2005 at 17:10:25 -0800, Nate Lawson wrote:
>  
>
>>Easiest way to test for resets is to stick this loop in the C code, 
>>pushing it farther down until you identify the line of code that resets 
>>instead of hanging.
>>
>>hang: goto hang;
>>
>>Try this in AcpiEnterSleepState().
>>    
>
>Been there, done that. See
>http://lists.freebsd.org/mailman/htdig/freebsd-acpi/2004-December/000949.html
>
>Ulrich Spoerlein

I just did some testing just to make sure that my system resets on the
same line. Sadly that is the problem, writing PM1A resets the machine.

I also compared the code with hwsleep.c from linux 2.6.10. They almost
exactly the same, except for at one point but that should only affect
S5. Everything else is the same.


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