Re: no self-refresh during S3 - any debug hints?

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On Thu, Jun 19, 2008 at 12:02 PM, Len Brown <lenb@xxxxxxxxxx> wrote:

>> I'm running kernel 2.6.20 on a laptop with an ATI IGP 320M Northbridge
>> and an Athlon XP.  DSDT has a _PTS but no _GTS.  I'm comfortable
>> recompiling the kernel.  Any suggestions as to how to proceed,
>> experiments to run, etc.?
>
> Start by running the upstrteam kernel -- now 2.6.26, just out of
> principle.
>
> Then, see Documentation/power/basic-pm-debugging.txt
>
> and try the options in /sys/power/pm_test

Thanks for the tips, Len.

I previously recompiled my kernel to implement a variant of Rafael's
patch from last November and was able to use it to determine that only
the actual S3 state enter/exit (i.e., the writes to the PM1*_CONTROL
in acpi_enter_sleep_state()) mattered - or, as you said, all the tests
worked.  I'd like to try 2.6.26 soon, but FWIW I did attempt 2.6.24
with the same results.

-Jeff
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