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While Ubuntu is starting, the following messages are shown and stays shown for long time:

* Starting LightDM Display Manager                                      [OK]
* Stopping Send an event to indicate plymouth is up                    [OK]
* Starting startpar bridge for notification of upstart job start/stop   [OK]
* Stopping startpar bridge for notification of upstart job start/stop   [OK]

After reaching the login page and attempting to login, the same messages are shown again, then I'm returned to the login page to choose between my my username and a Guest session. If I choose a Guest session, everything goes ok and I login as a Guest.

I tried restarting the machine, and then new, but similar messages appeared:

* Starting LightDM Display Manager                                      [OK]
* Stopping Send an event to indicate plymouth is up                    [OK]
* Starting startpar bridge for notification of upstart job start/stop   [OK]
* Stopping startpar bridge for notification of upstart job start/stop   [OK]
* Starting Mount network filesystems                                    [OK]
* Stopping Mount network filesystems                                    [OK]
* Stopping Send an event to indicate plymouth is up                    [OK]
* Starting startpar bridge for notification of upstart job start/stop   [OK]

And the same scenario is repeated. I can login only using a Guest session. If I use my user, I'm shown these messages, but this time, it took a very long time and I wasn't shown the login page again, so I had to restart my machine.

The thing I can remember that could be causing a problem, is that I added a path to the PATH environment variable in the ~/.pam_environment file. But I remember it was written ok:

PATH=/my/path:${PATH}

And while Ubuntu was starting, I connected my external screen. Could any of this be a cause to this problem ? What is the problem in the first place ?!

I'm using Dell Inspiron 7520 SE.

Muhammad Gelbana
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    Did you tried http://askubuntu.com/q/223501/169736 or http://askubuntu.com/q/314362/169736 – Braiam Nov 17 '13 at 16:59
  • Thanks a million man. None of these solutions were feasible because the system is still fresh (2 days old), but the Alt+number (i.e. Alt+3) trick enabled me to reach my .pam_environment file and remove the file I added earlier. – Muhammad Gelbana Nov 17 '13 at 17:14

1 Answers1

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I really don't know much about pam and its path variables

But If you think adding the path is the cause then just go to recovery mode and and remove the PATH which you added recently..If that is the cause then after changing it your ubuntu should behave properly...

Hope this helps!

Null pointer
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