Re: suspend to ram problem

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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?

Rafael
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