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Thread: Login screen again right after login

  1. #1
    Join Date
    Mar 2010

    Login screen again right after login


    Well, my problem is described in the topic: KDM starts normally, but if I enter correct password and hit 'enter', it shows black screen (for a second) and then restores login screen again.

    The last two lines in kdm.log are following:
    error setting MTRR (base = 0xd0000000, size = 0x10000000, type = 1) Inappropriate ioctl for device (25)
    ddxSigGiveUp: Closing log
    Also, I don't know if it's related, but I tried to install ATI Catalyst before it happened.

    Lucid Lynx, 2.6.32-25-generic.

    Thanks in advance,

  2. #2
    Join Date
    Oct 2007

    Re: Login screen again right after login

    Almost certainly related to the ATI drivers. Try this, boot in to recovery mode or access a TTY (control alt F1) and run this command:
    sudo aticonfig --initial
    then reboot (sudo reboot) and cross fingers.

    If that doesnt work, tell us what videocard you have.

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