On Sun 2008-02-03 18:39:01, Rafael J. Wysocki wrote:
> On Sunday, 3 of February 2008, matthieu castet wrote:
> > matthieu castet wrote:
> > > Hi,
> > >
> > > I am trying to make work suspend to ram on a MSI MS-6380E with a 2.6.23
> > > kernel.
> > >
> > > Standby mode works.
> > > S2ram suspend seems to work : the computer turn off and I can wake up it
> > > with the keyboard.
> > >
> > > But when the computer wakeup, I see the video card POST on the screen,
> > > but after that the computer hangs : black screen, no working numlock.
> > >
> > > I tried to compile PM_TRACE, but it give no result. So this means the
> > > resume hang very early.
> > >
> > > What can I do to debug this ?
> > >
> > I play with the s2_beep feature and :
> > - echo 4 > /proc/sys/kernel/acpi_video_flags make the computer beep
> > - echo 4 > /proc/sys/kernel/acpi_video_flags make the computer not beep
> > - adding a beep in bogus_real_magic, make the computer not beep
> >
> > So the hang seems located in wakeup_start.
>
> Hm. Can you add unconditional BEEP after "jne bogus_real_magic" in
> arch/x86/kernel/acpi/wakeup.S and see if it beeps?
Hmm, maybe I know where problem could be. Try
movl $(wakeup_stack - wakeup_code), %esp # Private stack is needed for ASUS bo\
instead of existing stack setup. That helped on one of my test-boxes
-- I uncovered that during rewrite.
Otherwise use BEEP and infinite loops to find out where it hangs...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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