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[Bug 874872] Re: Switching Users Fails

 

I have exactly this same problem, which only started after the upgrade
from 10.04 to 10.10

I'm using lightdm v1.0.1

Attaching the lightdm.log found at /var/log/lightdm/
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I have quite a few user accounts set up on my system, so I've tried a
few variations on this issue. The problem appears to be linked to
administrative accounts.

Case 1:
After booting up:
1. Standard User 'bob' logs in at lightdm login screen.
2. bob selects fast-user switcher, and chooses Standard User 'sarah'
3. Standard User sarah logs in at lightdm login screen.
4. sarah logs out (or just switches back to lightdm)
5. bob logs back in.
6. bob selects fast-user switcher, and chooses Administrator User 'thor'
7. thor types in password at login prompt. Password input screen greys out and thor is not logged in, as expected

Case 2:
After booting up:
1. Administrative User 'thor' logs in at lightdm login screen
2. thor selects fast-user switcher, and chooses Standard User 'sarah'
3. Standard User sarah enters password at lightdm login screen. 
4. Password input screen greys out and sarah is not logged in, as expected

I've also noticed that typing in an incorrect password does *not* freeze
the password input box. Incorrect password error comes up, and an
opportunity to retype the password is provided. Typing the correct
password then freezes the box.

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Please let me know how else I might help. 
Thanks for your efforts.

** Attachment added: "lightdm log file with multiple login attempts"
   https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/874872/+attachment/2561816/+files/lightdm.log

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to lightdm in Ubuntu.
https://bugs.launchpad.net/bugs/874872

Title:
  Switching Users Fails

Status in “lightdm” package in Ubuntu:
  Incomplete

Bug description:
  Upgraded from Ubuntu 11.04 to 11.10, using Unity, removed gdm and choose lightdm as default.
  Start PC and login into user account using lightdm.
  Using the indicator panel, select to switch users. Presented with lighdm login screen, select user and enter password. Remain at lightdm login screen, unable to enter passwords (textboxes then disappear if I select another user).
  Can use Alt-Ctrl-F7 to return to original GUI session.
  Can use Alt-Ctrl-F1 to set CLI, from there sudo restart lightdm  returned restart: unknown instance.

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References