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[SOLVED]Rebooting hangs

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    [SOLVED]Rebooting hangs

    Just noticed this. Booting works fine. Shutting down works fine. Restarting the machine makes it hang on shut down (on a blue screen).

    Not terribly sure how to determine what might cause it though. Any pointers?

    #2
    Re: Rebooting hangs

    I'm having the same problem on an Asus M3A78-EM motherboard 64-bit dual core computer. The relevant part of /var/log/Xorg.0.log I think is [ 12.243] (II) AIGLX: enabled GLX_SGI_make_current_read
    [ 12.243] (II) AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects
    [ 12.244] (II) AIGLX: Loaded and initialized r600
    [ 12.244] (II) GLX: Initialized DRI2 GL provider for screen 0
    [ 12.251] (II) RADEON(0): Setting screen physical size to 338 x 270
    [ 12.319] (II) XKB: reuse xkmfile /var/lib/xkb/server-B20D7FC79C7F597315E3E501AEF10E0D866E8E92.xkm
    [ 12.350] (II) config/udev: Adding input device Power Button (/dev/input/event1)
    [ 12.350] (**) Power Button: Applying InputClass "evdev keyboard catchall"
    [ 12.350] (II) LoadModule: "evdev"
    [ 12.351] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
    [ 12.389] (II) Module evdev: vendor="X.Org Foundation"
    [ 12.389] compiled for 1.10.0.902, module version = 2.6.0
    [ 12.390] Module class: X.Org XInput Driver
    [ 12.390] ABI class: X.Org XInput driver, version 12.3
    [ 12.390] (II) Using input driver 'evdev' for 'Power Button'

    Initiially I was able to get my desktop but after doing updates I am now getting a blue screen with vertical lines. I think if the screen goes blue or black with no readout, it is an X issue and not a Grub issue. Does anyone know how to restore the X screen?

    Apparently Wayland is not ready for prime time yet but was wondering if anyone had used that successfully, Details at http://www.omgubuntu.co.uk/2011/02/w...tu-11-04-repo/

    Update: On this computer, I am only having the problem with the 64-bit install. The 32-bit install is still working. I have searched for an answer, am still searching but have not yet found an answer. One helpful item is the Ubuntu cheat sheet at http://www.scribd.com/doc/2608130/Ubuntu-Cheat-Sheet

    Update: On the 64 bit partition the logs showed that fglrx was missing. Using Puppy Linux, I copied fglrx for /lib/fglrx from the 32 bit partition to the 64 bit partition. Then booting the 64 bit partition in recovery mode, doing all the fixes, I was then able to startx my desktop. Apparently fixing fglrx in Kubuntu 11.04 is needed.

    Comment


      #3
      Re: Rebooting hangs

      @runequester:
      Please review and consider the information contained in these posts:

      http://kubuntuforums.net/forums/inde...opic=3080379.0
      http://kubuntuforums.net/forums/index.php?topic=4216.0
      http://kubuntuforums.net/forums/index.php?topic=3110357

      I look forward to helping find a solution to your issue.

      Please Read Me

      Comment


        #4
        Re: Rebooting hangs

        Thank you.

        I did do a forum search but didn't find anything that seemed to match.

        The problem is I am not entirely sure how to diagnose the problem. It's not an issue I have encountered before.

        Comment


          #5
          Re: Rebooting hangs

          General diagnosing begins with your log files.

          The next time this happens, attempt to enter terminal mode by pressing CTRL-ALT-F1. Assuming this works log in and type dmesg. This is always the first place to start. Take note of any error messages.

          Your log files are kept in /var/log. Once you reboot or get logged in to your desktop again, browse and read the files there. Some usually productive logs for this kind of malfunction:

          Xorg.0.log (last boot)
          Xorg.0.log.old (previous boot)
          kdm.log
          messages
          syslog


          Also in your home directory .xsession-errors

          This could be an X or a KDM issue.

          To test if it's KDM add this line to the file /etc/kde4/kdm/kdmrc in the section beginning with [X-*-Core]

          TerminateServer=true


          To be more verbose: open a konsole (terminal) window and type;

          kdesudo kate /etc/kde4/kdm/kdmrc

          Scroll down to the [X-:*-Core] section:

          Code:
          [X-:*-Core]
          AllowNullPasswd=true
          AllowShutdown=All
          NoPassEnable=false
          NoPassUsers=
          ServerArgsLocal=-nr -nolisten tcp
          ServerCmd=/usr/bin/X
          and add the line from above

          Code:
          [X-:*-Core]
          AllowNullPasswd=true
          AllowShutdown=All
          NoPassEnable=false
          NoPassUsers=
          ServerArgsLocal=-nr -nolisten tcp
          ServerCmd=/usr/bin/X
          TerminateServer=true
          Save, and then attempt to log out.

          Please Read Me

          Comment


            #6
            Re: Rebooting hangs

            Much appreciated. I'll look through those logs tonight after work.

            Comment


              #7
              Re: Rebooting hangs

              Huzzah. The Terminate server option fixed it right up.

              Thank you for the general advice on log files. I have been using linux for a long time, but I still feel like a novice when it comes to diagnosing a lot of these types of issues.


              So from what I gathered in the kdmrc file, this option forces the X server to restart from scratch? Am I understanding that right?

              Comment


                #8
                Re: [SOLVED]Rebooting hangs

                Pretty much. This issue has been around off-and-on for awhile. Depends on video driver status. I'm an nvidia user and it seems ever other year you have to restart X between logins to get it working right. Then they fix it for awhile.

                Main thing is - you're back in business!

                Please Read Me

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