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Thread: Unable to authenticate/execute the action (code4) - Need Help

  1. #1
    Join Date
    Oct 2009
    Ubuntu 13.04 Raring Ringtail

    Exclamation Unable to authenticate/execute the action (code4) - Need Help

    I wanted to change the KDM login themes and have been installing themes through Login Screen Settings but the installed themes never showed up as an option to select so I wanted to manually install a theme

    Upon system restart something had crashed, I didn't note what it was as my system was restarting and pen/paper wasn't available, the login theme couldn't load so I manually loaded KDE through the command prompt.

    I was going to reset my manual changes through the Login Screen Settings but it couldn't apply the changes. The exact error message was:

    Title: Error-System Settings
    Msg: Unable to authenticate/execute the action: (code 4)

    This pops up instead of asking for credentials to change system settings. Now I can log into other stuff as root such as Konsole > gksudo dolphin but I haven't tested everything as to success or not.

    Additional discovered information:
    Desktop effects and games are extremely slow, KDE gave message that Desktop effects were actually automatically disabled due to lagging speed, games are so slow they eventually freeze up and won't close.
    Hope that helps
    Last edited by wiseguy12851; November 21st, 2010 at 07:19 AM. Reason: Additional details discovered
    I speak English, ちょっと日本語を話します

  2. #2
    Join Date
    May 2010

    Re: Unable to authenticate/execute the action (code4) - Need Help

    The same for me. Help!

  3. #3
    Join Date
    Mar 2009

    Re: Unable to authenticate/execute the action (code4) - Need Help

    Installing polkit-kde-1 package solved the problem for me.

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