Results 1 to 2 of 2

Thread: Xwindows authentication failure after playing a DVD

  1. #1
    Join Date
    Aug 2011
    Beans
    55

    Xwindows authentication failure after playing a DVD

    I have Ubuntu-Mate, 18.04, which works quite well. I copied a family DVD onto it tried to play it in MythTV; screen went black, "Please wait...." was displayed, and it stopped there. I logged in remotely and tried to kill x (sudo service lightdm stop). The TV screen went black and displayed "Started bpfilter" at the top left corner.

    I'm not sure I recall all the steps, but I tried "sudo startx" manually. It partially started and gave this message:

    "You must be a member of the "mythtv" group before starting any mythtv applications. Would you like to automatically be added to the group? (Note: sudo access required)"

    I answered "No" and it didn't work, so I pressed the reset button. After reboot, x-windows tries to start and displays a password dialogue box. If I enter the correct password, it goes black for a few seconds, then returns back to the same display and dialogue. If I enter an incorrect password, it gives an an "Invalid password..." message and returns to the same dialogue.

    Not sure where to go from here, any suggestions?

    PS - Seeing these errors in the logs:

    From /var/logs:

    lightdm.log has this at the end:
    ...
    [+366.97s] DEBUG: Continue authentication
    [+368.91s] DEBUG: Session pid=3387: Authentication complete with return value 7: Authentication failure
    [+368.91s] DEBUG: Authenticate result for user don: Authentication failure
    [+368.91s] DEBUG: Greeter start authentication for don
    [+368.91s] DEBUG: Session pid=3387: Sending SIGTERM
    [+368.91s] DEBUG: Session pid=3493: Started with service 'lightdm', username 'don'
    [+368.91s] DEBUG: Session pid=3387: Exited with return value 1
    [+368.91s] DEBUG: Seat seat0: Session stopped
    [+368.92s] DEBUG: Session pid=3493: Got 1 message(s) from PAM
    [+368.92s] DEBUG: Prompt greeter with 1 message(s)

    auth.log has this at the end:
    ...
    Nov 16 14:21:30 johnny systemd-logind[956]: New session c7 of user lightdm.
    Nov 16 14:23:34 johnny lightdm: pam_unix(lightdm:auth): authentication failure; logname= uid=0 euid=0 tty=:0 ruser= rhost= user=don
    Nov 16 14:23:34 johnny lightdm: pam_winbind(lightdm:auth): getting password (0x00000388)
    Nov 16 14:23:34 johnny lightdm: pam_winbind(lightdm:auth): pam_get_item returned a password
    Nov 16 14:23:34 johnny lightdm: pam_winbind(lightdm:auth): request wbcLogonUser failed: WBC_ERR_AUTH_ERROR, PAM error: PAM_USER_UNKNOWN (10), NTSTATUS: NT_STATUS_NO_SUCH_USER, Error message was: The sp
    Nov 16 14:23:36 johnny lightdm: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or directory
    Nov 16 14:23:36 johnny lightdm: PAM adding faulty module: pam_kwallet.so
    Nov 16 14:23:36 johnny lightdm: PAM unable to dlopen(pam_kwallet5.so): /lib/security/pam_kwallet5.so: cannot open shared object file: No such file or directory
    Nov 16 14:23:36 johnny lightdm: PAM adding faulty module: pam_kwallet5.so
    Nov 16 14:23:36 johnny lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "don"
    Nov 16 14:25:24 johnny sudo: don : TTY=pts/0 ; PWD=/home/don ; USER=root ; COMMAND=/usr/bin/mc
    Nov 16 14:25:24 johnny sudo: pam_unix(sudo:session): session opened for user root by don(uid=0)

  2. #2
    Join Date
    Mar 2010
    Location
    Squidbilly-Land
    Beans
    Hidden!
    Distro
    Ubuntu Mate 16.04 Xenial Xerus

    Re: Xwindows authentication failure after playing a DVD

    What about the X log file in /var/log/ ?

    I don't know anything about mythtv.
    DVDs with DRM need extra libraries installed to play or even copy. Cannot just copy the .vob files. vobcopy or something like that must be used.

    Best to start from the first error in any log file and fix that, then move onto the next, then the next, then the next.

    X has a ~/.Xauthority file. It should recreate with new credentials, provided the file exists and is empty.

    And being fully patched is the first thing I'd try.
    Code:
    sudo apt update && sudo apt upgrade
    If there are errors in that process, fix those.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •