Re: [2.6.22-rc3][ACPI?] Resume from s2r doesn't work.

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Hi Olaf,

I'm also having troubles with the resume part of STR, although since
your hardware is significantly different to mine, the cause is likely
to be different.

On 6/2/07, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> >>
> >> > On Friday, 1 June 2007 22:27, Olaf Dietsche wrote:
> >> >> When I resume, everything seems to come up (fan becomes busy, disk and
> >> >> dvd spin up for a short time),

First, you can check if the patch

http://www.sisk.pl/kernel/hibernation_and_suspend/2.6.22-rc3/patches/20-ACPI-preserve-the-ebx-value-in-acpi_copy_wakeup_routine.patch

helps, by chance.

(Rafael's suggestion may help you but it didn't help me)

Second, you can use PM_TRACE (Documentation/power/s2ram.txt) to find the
place where it really fails.

I modified my kernel source so it uses PM_TRACE to trace both the
suspend, and whether the BIOS ever jumps back into the kernel on
resume.  (In my case, I don't think the BIOS is doing the jump).

I also compiled with only the bare minimum of options turned on, and
use an initramfs to rule out device interactions.

If what I did is useful to you, you can find it here:

 http://bugzilla.kernel.org/show_bug.cgi?id=7988

And if you haven't already (and your problem occurs with a stock
kernel), you might want to log this as a bug like I did.

Hope this helps.

Mitch.
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