linux-kernel - Re: Suspend to RAM on MSI PR200YA - do not recover, system immediately turns down

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Date:	Mon, 12 Oct 2009 23:20:09 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Ondrej Hujnak <hujnak.ondrej@...il.com>
Cc:	linux-kernel@...r.kernel.org, mschmidt@...hat.com,
	pm list <linux-pm@...ts.linux-foundation.org>
Subject: Re: Suspend to RAM on MSI PR200YA - do not recover, system immediately turns down

On Monday 12 October 2009, Ondrej Hujnak wrote:
> 2009/10/10 Rafael J. Wysocki <rjw@...k.pl>:
> > On Saturday 10 October 2009, Ondrej Hujnak wrote:
> >> Hello,
> >>
> >> I am trying to make work "Suspend to RAM".
> >> My laptop is MSI PR200YA, linux
> >> kernel 2.6.30.8-64.fc11.i586 (fedora 11, 32bit),
> >> the same is with 2.6.31.1-56.fc12.i686.
> >> Motherboard - MSI 1221, graphics:
> >> Mobile GM965/GL960 Integrated Graphics Controller
> >>
> >> When I do suspend to RAM it seem to work ok, it sleeps.
> >> But when I want to wake it, it only switches off (the power
> >> LED stops blinking).  If I'm having my notebook connected
> >> to electricity, after start it don't  start screen and keyboard.
> >> Notebook is running, but there is no HDD activity according
> >> to the LED indicator. When it is on battery, it normally starts,
> >> as if I had switched it normally off. Every time after trying to
> >> suspend it to RAM, on the next start I have
> >> "last write to superblock in future".
> >>
> >> I tried:
> >>  - suspend from "single" mode
> >>  - suspend from "single" mode with as many modules as possible rmmod'ed
> >>  - using "nomodeset"
> >>  - early suspend-to-RAM at boot test with "test_suspend=mem"
> >> All with the same result.
> >>
> >> I also tried using pm_trace, but this gave no useful results in dmesg
> >> in the next boot. The clock was not changed by it (the documentation
> >> said it would be).
> >>
> >> I have attached printout of "lspci -vv" and "dmesg" after switching
> >> pm_trace on.
> >>
> >> I'd welcome any ideas how to debug this further.
> >> I'm looking forward to your reply.
> >
> > Does the pm_test 'core' test work (please see
> > Documentation/power/basic-pm-debugging.txt)?
> >
> > Rafael
> >
> 
> Ok, i tried all kinds of pm_test including core several times
> and everything seemed ok. I got no error, failure..
> 
> And i tried all possibilities of /sys/power/disk under
>  "init=/bin/bash" and same result as above.

That seems to indicate some kind of a BIOS issue.  However, several suspend
bugs are going to be fixes in 2.6.32, so perhaps you can try -rc6 or later,
when they are out.

Thanks,
Rafael
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