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Thread: Removed startup apps, not cannot login to Unity desktop

  1. #11
    Join Date
    Apr 2012
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    Re: Removed startup apps, not cannot login to Unity desktop

    did startx work? if not, what error messages did it produce?

  2. #12
    Join Date
    Jun 2007
    Location
    Macon, GA
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    345
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Removed startup apps, not cannot login to Unity desktop

    Thank you for your help.

    startx gave the following messages
    Fatal server error:
    Server is already active for display 0
    If server is no longer running, remove /tmp/.XO-lock
    ddxSigGiveUp: Closing log
    Invalid MIT-MAGIC-COOKIE-1 keyInvalid MIT-MAGIC-COOKIE-1 keyxinit:giving up
    xinit: unable to connect to X server: Resource temporarily unavailable
    xinit: server error

  3. #13
    Join Date
    Apr 2012
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    5,472

    Re: Removed startup apps, not cannot login to Unity desktop

    and you did stop lightdm first, right? did it really stop? what does

    Code:
    ps -ef | grep X
    say?
    Last edited by steeldriver; March 5th, 2013 at 02:34 PM.

  4. #14
    Join Date
    Jun 2010
    Location
    London, England
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    7,165
    Distro
    Ubuntu Development Release

    Re: Removed startup apps, not cannot login to Unity desktop

    there should be an easier way to recover from this error.
    Why? Why should there be an easy way of doing anything? There are many ways we can break an OS. They are all undocumented. Therefore, the methods for fixing things are also undocumented. An easy answer is to re-install Ubuntu. We are all guessing here. Try this

    Use Ctrl+Alt+T to open a terminal and run the command
    Code:
    software-center
    That should load the Ubuntu Software Centre. Search for ubuntu-desktop. Is it still installed? If not install it and shutdown and reboot. You may have removed ubuntu-desktop. Regards.
    It is a machine. It is more stupid than we are. It will not stop us from doing stupid things.
    Ubuntu user #33,200. Linux user #530,530


  5. #15
    Join Date
    Jun 2007
    Location
    Macon, GA
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    345
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Removed startup apps, not cannot login to Unity desktop

    root 2022 1359 0 08:40 tty7 00:00:01 /usr/binX :0 -auth /var/run/lightdm/root:0 -nolisten tcp vt7 -novswitch
    john 2441 2331 0 08:47 tty1 00:00:000 grep --color=auto X

    BTW, when I did shut down lightdm and run startx, I got a blank screen

    Thank you for your help

  6. #16
    Join Date
    Oct 2011
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    ZZ9 Plural Z Alpha
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    Hidden!
    Distro
    Ubuntu

    Re: Removed startup apps, not cannot login to Unity desktop

    Apparently that lighdm process didn't get killed properly- it's the first line returned. Kill it with

    Code:
    sudo kill -9 process_id
    What you posted says the process ID is 2022. It's probably changed now, but that's the field you want for the PID.
    Then follow steeldriver's instructions.
    Good luck.

  7. #17
    Join Date
    Jun 2007
    Location
    Macon, GA
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    345
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Removed startup apps, not cannot login to Unity desktop

    killed process as instructed
    startx
    screen goes black for a few minutes
    then get No protocol specified (multiple times)
    then get

    xinit: giving up
    xinit: unable to connect to X server: Resource temporarily unavailable

    waiting for X server to shut down ddxSigGiveUp: Closing log
    Server terminated successfully (0). Closing log file

    xinit: server error
    xauth: error on locking authority file /home/john/.Xauthority

  8. #18
    Join Date
    Apr 2012
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    Re: Removed startup apps, not cannot login to Unity desktop

    OK can you check the ownership + permissions on your home dir and ICE / X authority files please? e.g.

    Code:
    ls -ld ~
    ls -l ~/.{ICE,X}authority
    Since this appears to affect guest logins it's probably worth checking your available disk space as well

    Code:
    df -h

  9. #19
    Join Date
    Jun 2007
    Location
    Macon, GA
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    345
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Removed startup apps, not cannot login to Unity desktop

    df -h gave for /dev/sda2 size = 145G, used 96G, avalable 41G Use 71%
    udev/dev 1%
    tmpfs/run 1%
    /run/lock 1%
    /run/shm 1%

    ls -l ~/.{ICE,X}authority = -rw------- 1 john john 31140 Mar 1 08:53 /home/john/.ICEauthority
    = -rw------- 1 root root 0 Mar 5 08:40 /hone/john/.Xauthority

    ls -ld ~ = drwxr-xr-x 82 john john 12288 Mar 5 09:39 /home/john

  10. #20
    Join Date
    Apr 2012
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    5,472

    Re: Removed startup apps, not cannot login to Unity desktop

    OK you need to fix the ownership of your .Xauthority file - either

    Code:
    sudo chown john:john ~/.Xauthority
    or simply remove it and let the server create a new one next time (doesn't need sudo)

    Code:
    rm ~/.Xauthority
    Then either try startx again or jump right to restarting lightdm if you're feeling lucky

    Code:
    sudo service lightdm start

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