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Not exactly a 'boot' problem, but... System won't shutdown.

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    #1

    Not exactly a 'boot' problem, but... System won't shutdown.

    This problem has been around numerous kernel updates, and I know that it wasn't originally like this... But I don't remember when this happened (so I can't tell you what I've installed since then, etc.), or how 'bad' it really is.

    Basically, I cannot shutdown the computer. It stops at a time when I can still switch between virtual terminals (ctrl+alt+F1, ctrl+alt+F2, etc.), but I can't do anything with them.

    Pressing Ctrl+Alt+Del will restart the computer very promptly.

    If I 'restart' my computer, it restarts fine.

    What's wrong with it? Is it safe to use 'restart', then shut it down by holding the power button down after it starts to start up again?
    The Universe is a figment of its own imagination.<br /><br />-Douglas Adams
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    #2
    Re: Not exactly a 'boot' problem, but... System won't shutdown.

    What options do you have checked in Session Manager?
    Windows no longer obstructs my view.
    Using Kubuntu Linux since March 23, 2007.
    "It is a capital mistake to theorize before one has data." - Sherlock Holmes​
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      #3
      Re: Not exactly a 'boot' problem, but... System won't shutdown.

      Well, first of all, this happens regardless of what desktop environment I use, or even the desktop manager.

      I've switched from using kdm and gdm, from using Gnome or KDE, and all those various combinations... And it still happens.

      "Confirm Logout" is checked.
      "Offer Shutdown Options" is checked.

      Default Leave Option = End Current Session

      On Login = Start With an Empty Session

      There are no applications to be excluded from sessions.


      As I say, I doubt that this info from Session Manager is of any use, but I included it anyway.
      The Universe is a figment of its own imagination.<br /><br />-Douglas Adams
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        #4
        Re: Not exactly a 'boot' problem, but... System won't shutdown.

        I believe the shutdown function is part of ACPI. Are you booting with ACPI=OFF or some similar kernel option? If so, try ACPI=power_off or APM=power_off or try adding apm power_off=1 to /etc/modules

        Please Read Me
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          #5
          Re: Not exactly a 'boot' problem, but... System won't shutdown.

          I've no idea what any of that means. I'll try that last bit about /etc/modules.

          Edit:

          I tried it, and it got FURTHER with shutdown. It got to a black screen, with the backlight turned on (this is a laptop). If it shuts down completely, the backlight will be turned off.

          I cannot switch virtual terminals anymore or anything, and occasionally some white fuzzy stuff (?) flickers on the edge (I noticed it on the left side, may or may not be on the other side) of the screen.

          Pressing Ctrl+Alt+Delete completes the shutdown, and reboots. So, it's closer to a solution, but not quite there.

          How do I view/edit kernel boot options?
          The Universe is a figment of its own imagination.<br /><br />-Douglas Adams
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            #6
            Re: Not exactly a 'boot' problem, but... System won't shutdown.

            Look at /boot/grub/menu.lst or /boot/grub/grub.cfg - which one you have depends on which version of grub you're booting with.

            You see a line that looks something like
            Code:
            linux /vmlinuz-2.6.31.12-0.1-desktop root=/dev/sda1 ro quiet splash
            The kernel options are at the far right (quiet splash in this example).

            If you don't know about this, it's not likely you've added this in somehow.

            More likely you have a acpi/apm/bios that isn't fully kernel compatible. Do some web searching on your EXACT model of laptop and ACPI LINUX or something like that. Also make sure your bios is up to date.

            Please Read Me
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              #7
              Re: Not exactly a 'boot' problem, but... System won't shutdown.

              I've no idea how to update BIOS, but it has not always been like this.

              I don't know about this, so I have not added it in myself.

              The exact model number is Presario CQ60-212US. It's the variant that has an AMD chip, and nVidia graphics. And, as I said, it used to work fine.
              The Universe is a figment of its own imagination.<br /><br />-Douglas Adams
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                #8
                Re: Not exactly a 'boot' problem, but... System won't shutdown.

                I had a similar issue with Karmic on an iBook. The conflict was between the Broadcom wireless driver and the Karmic kernel. There's a bug report thread on launchpad, where a patch is linked.

                Thread where I sought help on this issue is here:
                http://ubuntuforums.org/showthread.php?t=1360303
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                  #9
                  Re: Not exactly a 'boot' problem, but... System won't shutdown.

                  You might want to try a couple of experiments:

                  sudo /sbin/halt
                  this is the program kde normally uses to shut down. If it works, then the problem is somewhere in kde.

                  sudo shutdown -h now
                  This is the standard way of shutting down from a console.

                  sudo init 0
                  should bring your system down quick.

                  While holding down the right ALT and SysRQ keys, press in the following order: R E I S U O

                  If none of these work, then it's some kind of mismatch between the kernel and your bios.
                  You can try the various acpi options that have been suggested here in the following way:
                  (I am assuming here you are using grub-pc, also know as grub2, grub-1.97, grub-1.98)

                  When you boot your system, highlight the entry you want to boot, and hit e.
                  Move the cursor to the line that starts with kernel.
                  Move to the end of that line and add the option you want to try.
                  Press CTRL-X to boot.
                  We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet. -- Stephen Hawking
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                    #10
                    Re: Not exactly a 'boot' problem, but... System won't shutdown.

                    The Alt+SysRQ one worked, actually. None of the others did.

                    I'll try those various options.
                    The Universe is a figment of its own imagination.<br /><br />-Douglas Adams
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