Asus P1-AH2 won't suspend (regression)

Asus P1-AH2 won't suspend (regression)

[Michel Lespinasse]

Hi,

I'm unable to get an asus P1-AH2 system to suspend (to ram). The issue
occurs at suspend time: the system displays "Suspending console(s)" but
does not turn off the screen and system fans.

I used to have suspend/resume working fine on this system using a
2.6.20.x kernel. Yes, I know this is a huge range... suspend has
been broken on this sytem since at least 2.6.22.x

I tried running 2.6.24-rc6 with verbose PM debugging and suspend/resume
event tracing. Still no luck, the last message I see is still
"Suspending console(s)". The information from event tracing seems to be:
  Magic number: 8:471:282
  hash matches device tty19

I'm not sure if that's any help. Is there any way to help figure out the
problem besides a git bisect ? would extra event traces during/after the
suspend console stage help ???

This is with an x86_64 kernel. .config file can be found at
http://lespinasse.org/config-2.6.24-rc6 if that's any help.

Thanks,

-- 
Michel Lespinasse

Re: Asus P1-AH2 won't suspend (regression)

[Rafael J. Wysocki]

On Friday, 4 of January 2008, Michel Lespinasse wrote:
> Hi,
> 
> I'm unable to get an asus P1-AH2 system to suspend (to ram). The issue
> occurs at suspend time: the system displays "Suspending console(s)" but
> does not turn off the screen and system fans.
> 
> I used to have suspend/resume working fine on this system using a
> 2.6.20.x kernel. Yes, I know this is a huge range... suspend has
> been broken on this sytem since at least 2.6.22.x
> 
> I tried running 2.6.24-rc6 with verbose PM debugging and suspend/resume
> event tracing. Still no luck, the last message I see is still
> "Suspending console(s)". The information from event tracing seems to be:
>   Magic number: 8:471:282
>   hash matches device tty19
> 
> I'm not sure if that's any help. Is there any way to help figure out the
> problem besides a git bisect ? would extra event traces during/after the
> suspend console stage help ???
> 
> This is with an x86_64 kernel. .config file can be found at
> http://lespinasse.org/config-2.6.24-rc6 if that's any help.

Please try the patch series from:
http://www.sisk.pl/kernel/hibernation_and_suspend/2.6.24-rc6/patches/
on top of 2.6.24-rc6 (patches 28-34 are relevant in particular) and see if that
helps.

Thanks,
Rafael