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Thread: 12.04 failed to load session “gnome-classic” and almost any other

  1. #1
    Join Date
    Sep 2007
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    Question 12.04 failed to load session “gnome-classic” and almost any other

    Ubuntu 12.04 failed to load session “gnome-classic”

    I don't know why but all of a sudden started to show the following messages:

    failed to load session "gnome-classic" When I try to open gnome classic from gnome3
    failed to load session "ubuntu" When I try to open ubuntu
    failed to load session "ubuntu-2d" When I try to open ubuntu-2d
    failed to load session "gnome" When I try to open gnome classic

    The only interface working is MATE

    What should I do? What has happened? Ubuntu 12.04 LTS is giving only headaches

    [Edit] It was working with all the interfaces. I don't know why it stopped. It's not in my computer.

    [Edit] It was working with all the interfaces. I don't know why it stopped. It's not in my computer. The login screen, where you choose which interface to load, is working. So I think lightdm is working.

    [Edit] Another strange behavior is that using KDE is incredibly faster than using MATE. That's weird! I also removed the session managers, gnome, unity, cinnamon and even the ubuntu-desktop with no success.


    It was working with all the interfaces. I don't know why it stopped. It's not in my computer.

    It didn't stop afer installing MATE, is not my machine but I've installed it and it was everything fine at least a week later.

    The owner installed KDE, so MATE and KDE are working. Iǘe tried Cinnamon with no success too, the same problem. Come on people! Do I have to use the Windows sollution?! Format the darn thing?!

    How to solve this WITHOUT formatting or clean install?

  2. #2
    Join Date
    Jun 2006
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    Belgium (nl)
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    24
    Distro
    Ubuntu

    Re: 12.04 failed to load session “gnome-classic” and almost any other

    Have you tried looking into the log files for finding the source of the problem?

    As your MATE interface is working you could try the following.
    Try to login into a non-working interface (This won't work but hopefully this will create usefull logging messages).
    Next login to MATE and checkout the contents of /var/log/messages

    You can also post the contents of the file, I don't think it contains sensitive information.
    A man may fight for many things. His country, his friends, his principles, the glistening ear on the cheek of a golden child. But personally, I'd mud-wrestle my own mother for a ton of cash, an amusing clock and a sack of French porn. - Blackadder -

  3. #3
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    Smile Re: 12.04 failed to load session “gnome-classic” and almost any other

    Quote Originally Posted by Pistolpete2 View Post
    Have you tried looking into the log files for finding the source of the problem?

    As your MATE interface is working you could try the following.
    Try to login into a non-working interface (This won't work but hopefully this will create usefull logging messages).
    Next login to MATE and checkout the contents of /var/log/messages

    You can also post the contents of the file, I don't think it contains sensitive information.
    I'll try it but ate least in my machine there is no messages file or folder in /var/log.
    Last edited by tenshimsm; June 15th, 2012 at 09:37 PM. Reason: improving the answer

  4. #4
    Join Date
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    Ubuntu

    Re: 12.04 failed to load session “gnome-classic” and almost any other

    Oops, my bad, on Ubuntu /var/log/messages doesn't exist . That is logging file for red hat based linux OSes.

    You should check the contents of the file /var/log/syslog
    A man may fight for many things. His country, his friends, his principles, the glistening ear on the cheek of a golden child. But personally, I'd mud-wrestle my own mother for a ton of cash, an amusing clock and a sack of French porn. - Blackadder -

  5. #5
    Join Date
    May 2007
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    117
    Distro
    Xubuntu 12.04 Precise Pangolin

    Re: 12.04 failed to load session “gnome-classic” and almost any other

    Quote Originally Posted by tenshimsm View Post
    Ubuntu 12.04 failed to load session “gnome-classic”

    I don't know why but all of a sudden started to show the following messages:

    failed to load session "gnome-classic" When I try to open gnome classic from gnome3
    failed to load session "ubuntu" When I try to open ubuntu
    failed to load session "ubuntu-2d" When I try to open ubuntu-2d
    failed to load session "gnome" When I try to open gnome classic

    The only interface working is MATE

    What should I do? What has happened? Ubuntu 12.04 LTS is giving only headaches

    [Edit] It was working with all the interfaces. I don't know why it stopped. It's not in my computer.

    [Edit] It was working with all the interfaces. I don't know why it stopped. It's not in my computer. The login screen, where you choose which interface to load, is working. So I think lightdm is working.

    [Edit] Another strange behavior is that using KDE is incredibly faster than using MATE. That's weird! I also removed the session managers, gnome, unity, cinnamon and even the ubuntu-desktop with no success.


    It was working with all the interfaces. I don't know why it stopped. It's not in my computer.

    It didn't stop afer installing MATE, is not my machine but I've installed it and it was everything fine at least a week later.

    The owner installed KDE, so MATE and KDE are working. Iǘe tried Cinnamon with no success too, the same problem. Come on people! Do I have to use the Windows sollution?! Format the darn thing?!

    How to solve this WITHOUT formatting or clean install?
    1: Do I understand correctly, this did at one time boot to all the options you listed?
    2: If the answer to #1 is yes, what changed? I think something must have changed.
    3: Checking the log messages has already been suggested. You should do this. You can get KDE running - it has a log file viewer.
    4: Running fsck on your disk might be a good idea.
    5: It might be that while installing something, some dependencies have been broken. Reinstalling the desktops is fairly trivial in Linux. Just use Synaptic and select reinstall.

    No answer I have is definitive. There is too little information here for me to say for sure it is one thing or another.

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