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SubjectRe: [Bugme-new] [Bug 11717] New: Pressing suspend button suspends, but does not wakes up
Dear Zhang, and other people.

On Nov 11 2008, Rogério Brito wrote:
> Zhang Rui wrote:
> > let's focus on the suspend/resume problem in this bug entry.
> > So please stop using suspend button or lid button to do suspend/resume
> > test.
> > You can use "echo mem > /sys/power/state" to suspend and use power button
> > to resume to see how suspend/resume works on your laptop.
> What I get when I use this is that the notebook goes to suspend state and
> the only button that it has (power button) has a blue light that starts
> blinking.

Zhang, you mentioned that you thought that my notebook could resume if
the BIOS is skipped, right?


# echo 1 > /sys/power/pm_trace

I tested all the variations of:

# echo ??? > /sys/power/pm_test
# echo mem > /sys/power/state

that could be put into /sys/power/pm_test, but the notebook always
"resumed" ("woke up" from "sleep").

On the other hand, if I do a real sleep (say, putting none into
pm_test), then:

* the notebook goes to sleep;
* when I press the power button, the machine power itself off;
* a few seconds after that, it powers itself on again.

Unfortunately, at this point, *everything* is black in the monitor and
there are no responses (not even Magic SysRq).

The range of kernels tested was: 2.6.24 to 2.6.31-rc5.

As can be obviously seen from the kernels and the original report date,
this bug is more than one year old (it was filed with bugzilla on

Please, help.

Thanks, Rogério Brito.

Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8 :
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