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Does anyone know the differences in the 2.4 kernel and 2.6 kernel, as far as acpi is concerned. Here's the deal, my laptop, only seems to restart and shutdown properly, ...
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    What are the differences between the 2.4 and 2.6 Kernels?


    Does anyone know the differences in the 2.4 kernel and 2.6 kernel, as far as acpi is concerned. Here's the deal, my laptop, only seems to restart and shutdown properly, with the 2.4 kernel, but with the 2.6, it's a different story. I have to unplug power and plug it back to restart. I have a Toshiba P25-S670. Thanks in advance.

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    Banned jan1024188's Avatar
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    Hi, I have a Toshiba Satellite p10-10p laptop and a 2.6.22 kernel. It works like a charm.

    2.4 kernel is old and has many bug. Thus, I think that you cannot get updates for 2.4 kernels.
    I recommend you to upgrade your kernel first (to the last version). I'm not working with kernels, so I dont know what will you have to re-configure to fix the problem.

    Anyway, which distro are you using?

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    Linux Guru bigtomrodney's Avatar
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    Quote Originally Posted by jan1024188 View Post
    2.4 kernel is old and has many bug. Thus, I think that you cannot get updates for 2.4 kernels.
    Just to clarify there - 2.4 is not buggy but rather aimed at older hardware. It is still under development and has regular releases. 2.6 is for newer hardware. Many people would consider 2.4 the more stable kernel though at this stage I don't think any is 'more' stable. IIRC 2.4 is more APM -centric with ACPI really coming in to play for 2.6

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    Banned jan1024188's Avatar
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    Oh, sorry for wrong info. I replaced 2.4 with 2.2 in my mind.

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    Linux Guru bigtomrodney's Avatar
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    I was thinking 2.5 myself when I read that

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    Banned jan1024188's Avatar
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    Does 2.5 linux kernel exist???

    I didn't know that before.

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    Linux Guru bigtomrodney's Avatar
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    It was a development kernel. Previously odd numbers were development and even numbers were stable. I'm not sure if this is still the case though I suspect it was abandoned and alternate releases take this format e.g. maybe 2.6.19 is testing and 2.6.20 is stable.

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    Super Moderator devils casper's Avatar
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    I'm not sure if this is still the case though I suspect it was abandoned and alternate releases take this format e.g. maybe 2.6.19 is testing and 2.6.20 is stable.
    Feisty Fawn has 2.6.20 kernel and its stable now. developers are not releasing any patches for 2.6.20 now.
    Gutsy Gibbon is in an early development phase and has 2.6.22 kernel. 2.6.22 is not stable yet. we are getting patches regularly.
    no news about 2.6.21 though. i think there isn't any testing/stable pattern.
    It is amazing what you can accomplish if you do not care who gets the credit.
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    Banned jan1024188's Avatar
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    Ups, I have a 2.6.21 and not 2.6.22

    Linux localhost.localdomain 2.6.21-1.3194.fc7 #1 SMP Wed May 23 22:35:01 EDT 2007 i686 i686 i386 GNU/Linux
    It works fine for me (I have a sound problem, true)

  10. #10
    Super Moderator devils casper's Avatar
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    i didn't check Fedora. i installed it two days back only and didn't explore it yet.
    now we have 2.6.20 stable (Feisty), 2.6.21 stable (Fedora 7) and 2.6.22 under development (Gutsy Gibbon).
    It is amazing what you can accomplish if you do not care who gets the credit.
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