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Thread: Ubuntu shutting down unexpectedly

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  1. #1
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    Ubuntu shutting down unexpectedly

    I experienced some issues with my acer travelmate 5730 shutting down when I tried to install ubuntu 12.04... However I managed to install it and after a few updates the shutting down stopped...

    But yesterday I wanted to plug in another monitor and set dual displays via AMD CCC. After setting dual displays I had to reboot the notebook. And since then the notebook has been shutting down soon after being turned on, not even letting linux or win to boot. I tried many many tricks, from updating drivers to reseting BIOS by pulling out the CMOS battery. I got to the state when I am able to boot linux by launching recovery mode, selecting the root terminal and typing restart... then the ubuntu boots and everything works fine. However, when I want to launch ubuntu normally, it shuts down while booting. I managed to look at the temperature a few times and it never got over 50°C... So I don't assume it to be overheating. I'm starting to think there could be a hardware problem... my graphic card is ati radeon hd 3470

    Does anybody have an idea what might be the cause?

  2. #2
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    Re: Ubuntu shutting down unexpectedly

    Welcome to the Ubuntu Forums

    I think that your operating system is not cooperating well with your graphics card. You made it work with one monitor, but it broke when you installed the fix for two monitors.

    When you boot via recovery mode, will you have dual display, or only one display?

    If you have dual display, then try to mimic that way to boot! Otherwise maybe you should try to uninstall the dual display settings.

    There are some boot options, that you can see either directly in grub (type 'e' to view and or edit the boot command lines), or in the grub configuration files.

    Check the entries in the file
    Code:
    /boot/grub/grub.cfg
    Look for a line similar to
    Code:
            linux   /boot/vmlinuz-3.2.0-35-generic-pae root=UUID=cdc8b4a7-46af-43bd-91fc-030c21ef9887 ro recovery nomodeset
    Probably the critical boot option is nomodeset Of course you should not add recovery


    In the following file
    Code:
    /etc/default/grub
    check and change the following line to match what is used in recovery mode
    Code:
    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
    so for example (I don't know about all your boot options)
    Code:
    GRUB_CMDLINE_LINUX_DEFAULT="nomodeset"
    Finally, run
    Code:
    sudo update-grub
    and reboot!

    Good luck

  3. #3
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    Re: Ubuntu shutting down unexpectedly

    I've tried it (it was "nomodeset") and still the same, even had some troubles with getting to ubuntu via recovery mode...

  4. #4
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    Re: Ubuntu shutting down unexpectedly

    Unexpected shutdowns or crashes can also be an indication of a hardware problem such as bad RAM. Did you run memtest to make sure your RAM is ok?

  5. #5
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    Re: Ubuntu shutting down unexpectedly

    tried, memtest shuts down as wel...

    and about the dual display, when I set it in AMD CCC it asks me to reboot, and after rebooting and repeating the recovery mode way, the dual display occurs only when logging in, afterwards it switches back to mirror (clone) displays.

  6. #6
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    Ubuntu 12.04 Precise Pangolin

    Re: Ubuntu shutting down unexpectedly

    Quote Originally Posted by RockStone9 View Post
    tried, memtest shuts down as wel...

    and about the dual display, when I set it in AMD CCC it asks me to reboot, and after rebooting and repeating the recovery mode way, the dual display occurs only when logging in, afterwards it switches back to mirror (clone) displays.
    Am I right in assuming that you tried memtest from a liveCD, i. e. not booting into the installed system and running memtest from there? If your system is even shutting down from running memtest of a liveCD, my guess would be a serious hardware problem.

  7. #7
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    Re: Ubuntu shutting down unexpectedly

    Quote Originally Posted by RockStone9 View Post
    tried, memtest shuts down as wel...

    and about the dual display, when I set it in AMD CCC it asks me to reboot, and after rebooting and repeating the recovery mode way, the dual display occurs only when logging in, afterwards it switches back to mirror (clone) displays.
    1. Memtest should not shut down, and it is only text mode, and it should not depend on any advanced setting in the operating system. Try adding nomodeset to the grub command line for memtest and try to run it for a long time.

    If the RAM is bad (you get errors), and you have more than one RAM card, take one card out each time, run memtest to find out which one is bad.

    2. If the RAM is OK, check that the HDD is OK, because your system seems to change very quickly.

    a. The file system(s). Boot from the Ubuntu install drive. Check with
    Code:
    sudo e2fsck -f /dev/sdxy
    where x is the drive letter and y is the partition number, for example /dev/sda5

    b. The disk hardware. Check the S.M.A.R.T. status, probably there is a summary is a BIOS menu. Otherwise use for example smartctl installed with smartmontools.

    If this won't work, I think you need to move your hard disk drive to another computer and try to rescue what is possible to read. ddrescue is a good tool.

  8. #8
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    Re: Ubuntu shutting down unexpectedly

    I tried to run memtest without live CD... after the PC starts I get to choose between win, linux, linux recovery, older versions.. and memtest.
    I also tried running memtest with one card at a time (1GB, 2GB) and each time it shuts down... if I recall correctly (getting confused from everything I've tried so far) I had tried SMART check yesterday with smartmontools and the disk turned out to be ok

    and I can't add the nomodeset line because I've started having difficulties to get into the ubuntu...

  9. #9
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    Re: Ubuntu shutting down unexpectedly

    Quote Originally Posted by RockStone9 View Post
    I tried to run memtest without live CD... after the PC starts I get to choose between win, linux, linux recovery, older versions.. and memtest.
    I also tried running memtest with one card at a time (1GB, 2GB) and each time it shuts down... if I recall correctly (getting confused from everything I've tried so far) I had tried SMART check yesterday with smartmontools and the disk turned out to be ok

    and I can't add the nomodeset line because I've started having difficulties to get into the ubuntu...
    You do that directly editing the grub menu at boot. Press 'e' to enter edit mode.

    I'm glad your HDD passed the S.M.A.R.T. test, yet as 2F4U indicated, it might be a good idea to start memtest from an external CD/DVD/USB drive, because then you eliminate possible errors of the internal HDD.

    If still no success to even run memtest, there is probably some other problem with the hardware (motherboard, cpu, graphics card ...)

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