Re: System hang when trying to enter sleep/standby state

[Jean-Pierre Schwickerath <lists-Z7rXY4Hz9HLk1uMJSBkQmQ@public.gmane.org>]

"Erik van Pienbroek" <admin-0LxUhLuGNoZIf6P1QZMOBw@public.gmane.org> wrote:

> The /proc/acpi/sleep same story..if I echo '4' in it the notebook
> would continue to work..if I echo '3' the
> notebook would hang...with echo '5' the notebook would also hang...
> Is this because the ACPI support isn't complete yet or am I doing
> something wrong ?


With ACPI the control of Power Management is given into the hands of
the OS. It means you can suspend machines which have a BIOS that doesn't
support suspend to disk or suspend to ram as the OS emulates the
process. 
This could be the case with your notebook. 

I have a hp omnibook xe4400 and a similar behaviour. I didn't manage to
find out if my machine has the ability to suspend to disk from bios yet.

Anyway, swsusp (software suspend) works like a charm. 
Have a look at http://sourceforge.net/projects/swsusp for the kernel
patches and the scripts to suspend your notebook. 


Jean-Pierre

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