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Thread: openSUSE 11 freezes shortly after logon in a console

  1. #11
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    Default Re: openSUSE 11 freezes shortly after logon in a console

    Take a look in the bios to see what power management options are there. I have read of conflicts between the bios acpi and OS, and even IIRC being able to turn off the bios setting, leave it on in the OS and the kernel makes it work (sorta like the kernel taking over the IRQ's). Worth checking into maybe.

  2. #12
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    Default Re: openSUSE 11 freezes shortly after logon in a console

    The sad news is that there are no power related settings in the BIOS, nothing at all.

    I have read somewhere that APM and ACPI are doing the same thing, but ACPI is newer and more development effort is dedicated to it. I also found out that these are mutually exclusive, i.e. you can't have both of them enabled at the same time.

    My next idea to try is acpi=off and apm=on. I will let you know how things went, until then please let me know if you have other troubleshooting tips.

  3. #13
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    Default Re: openSUSE 11 freezes shortly after logon in a console

    Usually if there is acpi in the bios, there simply is no apm. The former superceded the latter. The OS interacts with the bios to control the hardware, and that's where things break. There have been problems with both the standard and with the bios implementations. Take a look at the Criticisms section in the Wikipedia article - what is especially nice was Gate's effort to sabotage acpi for linux.

  4. #14
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    Default Re: openSUSE 11 freezes shortly after logon in a console

    Usually if there is acpi in the bios, there simply is no apm
    There are no power-related settings there, not ACPI, nor APM.

    After booting with "acpi=off apm=on" the system did not freeze, but the battery applet did not work, and features such as 'sleep' were not available. In other words, the system behaved as if the setting was "acpi=off"

    1. How can I find out if the system supports APM?
    2. How to verify whether it is enabled or not?



    Take a look at the Criticisms section in the Wikipedia article - what is especially nice was Gate's effort to sabotage acpi for linux.
    Indeed, that paragraph is not very encouraging.


    My next idea is to try to downgrade the kernel to the version that was there immediately after the installation.

    Which other components is it worth to downgrade in the context of this experiment?

  5. #15
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    Default Re: openSUSE 11 freezes shortly after logon in a console

    On Fri, 15 Aug 2008 07:16:03 GMT
    ralienpp <ralienpp@no-mx.forums.opensuse.org> wrote:

    >
    > - How can I find out if the system supports APM?
    > - How to verify whether it is enabled or not?


    To see if APM or ACPI is supported by your motherboard:

    sudo dmidecode | egrep -i "acpi|apm"

    Mine returns:
    APM is supported
    ACPI is supported

    To browse all of the (amazing) info that dmidecode outputs:

    sudo dmidecode | less

    (press 'q' to exit less when you're done)

    Loni

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    lornix@lornix.com


  6. #16
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    Default Re: openSUSE 11 freezes shortly after logon in a console

    On Thu, 14 Aug 2008 19:26:03 GMT
    ralienpp <ralienpp@no-mx.forums.opensuse.org> wrote:

    >
    > The sad news is that there are no power related settings in the BIOS,
    > nothing at all.
    >
    > I have read somewhere that APM and ACPI are doing the same thing, but
    > ACPI is newer and more development effort is dedicated to it. I also
    > found out that these are mutually exclusive, i.e. you can't have both
    > of them enabled at the same time.
    >
    > My next idea to try is- acpi=off -and- apm=on-. I will let you know how
    > things went, until then please let me know if you have other
    > troubleshooting tips.
    >
    >


    Have you tried 'acpi=force' or 'acpi=noirq' ?

    Read through all the posts... I don't believe you've ever mentioned which
    laptop you have, although it does have the Intel GMA900 video chipset.

    That information might help. Please?

    Loni

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    L R Nix
    lornix@lornix.com


  7. #17
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    Default Re: openSUSE 11 freezes shortly after logon in a console

    Loni, you are awesome! . . .

  8. #18
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    Default Re: openSUSE 11 freezes shortly after logon in a console

    @ralienpp -

    The command hwinfo --bios will also give you the bios info. hwinfo is great for looking at the firmware in most of your hardware.

  9. #19
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    Default Re: openSUSE 11 freezes shortly after logon in a console

    On Fri, 15 Aug 2008 15:36:03 GMT
    mingus725 <mingus725@no-mx.forums.opensuse.org> wrote:

    >
    > Loni, you are awesome! . . .
    >
    >


    Whaaat? What'd I do? Did I do something? If it's broke, I didn't do it.
    Nobody saw me... can't prove it!

    No, really... what?

    Loni (Grin)
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    lornix@lornix.com


  10. #20
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    Default Re: openSUSE 11 freezes shortly after logon in a console

    The laptop in question is an LG LS70 Express.

    I did not yet get the chance to try it with acpi=noirq, but I found this list of ACPI settings, and will try them one after another to see whether there is an effect.

    How can I find what are the current settings of the kernel? (I cannot rely on the list I see when the system boots, because some settings will use default values if not explicitly declared)


    I will let you know what the output of hwinfo is when I'm at that computer next time.

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