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[Problem] Ubuntu 10.04 restarts when shut-down

  • 07-09-2010 10:19am
    #1
    Registered Users, Registered Users 2 Posts: 3,745 ✭✭✭


    I've alluded to this problem in a number of threads, so I thought I'd give it its own. This is the only reason I'm still on 9.10, and with this problem still present in 10.10 beta, I'm worried it may not be fixed before 9.10's security updates lapse next April.


    In a nutshell, if I click shut-down the computer restarts instead. But it doesn't exactly restart. It actually fully powers down (I hear the bing of the power cut out) and then powers up again (crackle in the speakers). When I restart the power never cuts out: it goes straight from shut-down to bios startup.

    This behaviour still occurs when I shut down from the terminal or from a text console using commands like `sudo shutdown -P now`. I've tried a number of variations on the shut-down command to no avail.

    There is a bug filed.

    Does anyone have an suggestions? Thanks! :)


Comments

  • Registered Users, Registered Users 2 Posts: 3,745 ✭✭✭Eliot Rosewater


    So, in anticipation of the expiration of Ubuntu 9.10 updates I installed the latest version of Fedora, with the goal of moving to Fedora next March. Unfortunately this shutdown problem also affects Fedora.

    Bummer.

    So I was thinking of strategies to deal with this. My first was to remove the timer from GRUB, so that when the computer restarted I could turn it off when it reached the bootloader menu. However, I'm not happy about having to turn off and then turn on again, before turning off fully, because this could have a negative affect on my hardware.

    I could also just log out of a GNOME session, and turn off the computer manually using the power button when the log in prompt appears. This isn't ideal though, especially as I'd have to hold the power button for so many seconds, and it could also negatively impact my hardware.


  • Registered Users, Registered Users 2 Posts: 1,889 ✭✭✭evercloserunion


    Have you tried sudo halt?


  • Registered Users, Registered Users 2 Posts: 425 ✭✭Mathiasb


    It sounds like a buggy BIOS / ACPI implementation and/or kernel bugs. What if you install the latest kernel and try with that?

    If this works: http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.36.1-natty/
    (might not, might depend on newer stuff)


  • Moderators, Arts Moderators Posts: 35,731 Mod ✭✭✭✭pickarooney


    Does it do the same thing from a LiveCD? If so, given that it's happening in Fedora, I'd say it's not an Ubuntu issue and the thread title could be changed.


  • Moderators, Education Moderators, Home & Garden Moderators Posts: 8,260 Mod ✭✭✭✭Jonathan


    linux-kernel-announce informs me that 2.6.37-rc5 was released today.

    Try building that kernel from source and see does it suffer from the same issues. If it does, then don't bother trying to change distros to solve it, spend your time digging around the hardware and submit a patch. :)


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  • Registered Users, Registered Users 2 Posts: 3,745 ✭✭✭Eliot Rosewater


    Cheers for the suggestions!

    "sudo halt" has the exact same behaviour. As does the LiveCD.

    I've never compiled my own kernel, but I'd like to! I've had a version of Ubuntu 10.10 installed for the last 3 months, checking it intermittently for updates and trying it again. Compiling it would be a learning experience, if anything...

    EDIT: Actually, would it be possible to install 10.10 and then build an older kernel that worked? Or would there be monstrous compatibility problems? Is this a stupid suggestion? :D


  • Moderators, Technology & Internet Moderators Posts: 1,336 Mod ✭✭✭✭croo


    what about doing a BIOS update too?


  • Registered Users, Registered Users 2 Posts: 3,745 ✭✭✭Eliot Rosewater


    Did that already! :)


  • Moderators, Technology & Internet Moderators Posts: 1,336 Mod ✭✭✭✭croo


    if you "hibernate" does it shutdown? or does it reboot? is the reboot immediate? I mean it's not doing a "wake-up on lan" or something like that? [you seem to have done all the obvious so just looking for some other ideas!]


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