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

[Pavel Machek <pavel@suse.cz>]

On Thu 2008-06-19 15:02:12, Len Brown wrote:
> 
> 
> On Sat, 31 May 2008, Jeff Trull wrote:
> 
> > I made a breakthrough in my s2r debugging last night when I realized
> > that the sooner I pressed the power button after suspend, the more
> > life the system exhibited post-resume.  In fact when I attempted to
> > resume immediately after entering suspend, my system had a successful
> > resume from memory for the first time ever.  Therefore, I have a new
> > hypothesis: DRAM self-refresh mode is not being properly entered.

Hmm, or some other hardware... I ve seen machines where video ram was
not refreshed. If that piece of hw is critical enough, it will break
resume.

You could try with minimal system, with as little drivers as
possible... use acpi_sleep=s3_beep to determine where it fails.
									Pavel
-- 
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