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

  1. #1
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    Unhappy Removed startup apps, not cannot login to Unity desktop

    I was removing some of the apparently useless (hidden) startup applications. When I rebooted, I found that I could not log into Unity desktop (even with guest), but I could login to character-based environment after Ctrl-Alt-F1. So, I know my usernames and passwords are good. How do I get back to where I was?

    John
    Last edited by cigtoxdoc; March 5th, 2013 at 06:47 PM. Reason: problem solved

  2. #2
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    Re: Removed startup apps, not cannot login to Unity desktop

    What did you remove? Most of the stuff in startup was MANDITORY. Hence why it was hidden. But some, like bluetooth, desktop sharing could be removed.

  3. #3
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    Re: Removed startup apps, not cannot login to Unity desktop

    Thank you for your reply. All my data files are backed up on SpiderOak, but there should be an easier way to recover from this error. Any ideas?

    John

  4. #4
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    Re: Removed startup apps, not cannot login to Unity desktop

    what are the exact symptoms? does the lightdm / unity greeter screen start OK but then not let you login? or do you only get a CLI screen?

  5. #5
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    Re: Removed startup apps, not cannot login to Unity desktop

    Everthing behaves as normal until you go to log into Unity desktop. It is rejecting valid passwords. Password works when I do Ctrl-Alt-F1 and login with user name and password.

    John

  6. #6
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    Re: Removed startup apps, not cannot login to Unity desktop

    it appears that I could quickly copy the etc/xdg/autostart folder from another similar PC and past it into /etc/xdg/ on the nonworking machine. I have the folder on a thumb drive. There appears no way using UNIX commands to copy the folder from the thumb drive into /etc/xdg/ .

  7. #7
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    Re: Removed startup apps, not cannot login to Unity desktop

    Quote Originally Posted by cigtoxdoc View Post
    There appears no way using UNIX commands to copy the folder from the thumb drive into /etc/xdg/ .
    Come on now, really?

    You need to mount the flash drive first. Run

    Code:
    sudo fdisk -l
    to see what the computer is calling your flash drive (/dev/sd(a,b,c, etc)(1,2,3, etc). Likely it'll be /dev/sdb1.

    Next run

    Code:
    sudo mkdir /media/flashdrive
    sudo mount /dev/sdb1 /media/flashdrive
    then navigate to /media/flashdrive, and the contents of the flash drive will be there. You can copy/paste into /etc/xdg, remembering you need to use sudo.

    I'm not sure at all if this will fix your original issue but this is how to do what you wanted.

  8. #8
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    Re: Removed startup apps, not cannot login to Unity desktop

    Thank you very much for your help. Yes, the syntax that you gave me work. Yes, I now have the autostart files from /etc/xdg/autostart files from a similar machine over to /etc/xdg/autostart on problem machine.

    However, I can still not get a logon to work on Unity desktop

    John

  9. #9
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    Re: Removed startup apps, not cannot login to Unity desktop

    Here's another diagnostic you can try - it will tell you whether it's your lightdm / greeter authentication process that is broken, or a problem starting your default session


    1. log in at the virtual terminal (e.g. Ctrl-Alt-F1)

    2. kill lightdm if it's still running

    Code:
    sudo service lightdm stop
    3. attempt to start X manually

    Code:
    startx
    If lightdm is broken, you might want to

    a. backup the /etc/lightdm/lightdm.conf file

    Code:
    sudo cp /etc/lightdm/lightdm.conf /etc/lightdm/lightdm.conf.back
    b. reconfigure lightdm and the default greeter

    Code:
    sudo dpkg-reconfigure lightdm
    sudo dpkg-reconfigure unity-greeter
    sudo service lightdm start

  10. #10
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    Re: Removed startup apps, not cannot login to Unity desktop

    Thank you for your help. I have followed your suggestions, but none of the logins on the Unity desktop work.

    What are next steps?

    John

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