Suspend/hibernation/sleep of laptop on FC4?

From: Patrick (fedora_at_puzzled.xs4all.nl)
Date: 10/01/05

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    To: For users of Fedora Core releases <fedora-list@redhat.com>
Date: Sat, 01 Oct 2005 12:43:44 +0200

    Hi all,

    The last item to tackle on my new laptop is to figure out how to get it
    to go into some sort of standby mode when I either close the lid,
    briefly press the power button or right click on the battery icon and
    select suspend. I have googled around but haven't really found the one
    stop shop how to do it. I've read that "suspend to disk" is only
    supported with the patches from http://swsusp2.net/ but Dave Jones'
    stance ("My comments on swsusp are largely unprintable" don't really
    inspire confidence. See
    https://www.redhat.com/archives/fedora-devel-list/2004-October/msg01375.html)

    So I have a few questions:

    1) what is supported by the latest FC4 update kernel (2.6.13-1526)?
    2) how can I make the parts that are supported (and safe) work on FC4?
    3) according to one report the kernel parameter "acpi_sleep=s3_bios" can
    result in filesystem corruption on 2.6.12. Does that apply to the FC4
    kernels too? See:
    http://www.thinkwiki.org/wiki/Installing_Fedora_Core_4_on_a_ThinkPad_X41_Tablet#Suspend

    If possible I would like the power button to act as follows:
    - press it briefly and go into some sort of standby
    - press it longer and shut down the laptop

    On the laptop I also have a key combination (Fn-F4) that supposedly
    generates an ACPI sleep message. Would be nice if I could use that one
    too.

    Many thanks for any pointers.

    Regards,
    Patrick 

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