Ubuntu
lightdm package

Cannot login into ecrypts directories if not unmounted before

Bug #824594 reported by Barry Warsaw
38
This bug affects 6 people
Affects Status Importance Assigned to Milestone
Light Display Manager
Fix Released
Undecided
Unassigned
lightdm (Ubuntu)
Fix Released
High
Michael Terry

Bug Description

When you log out, ~/.Xauthority still exists. Subsequent logins via lightdm are impossible. The screen flashes and then you're dumped back at the login screen. You have to ssh into the machine (or use a virtual terminal) and remove ~/.Xauthority, then you can login again.

I know I reported something similar before, but I can't find that bug now. :(

Revision history for this message
Sebastien Bacher (seb128) wrote :

Right, I closed your other bug pointed to bug #823775 which was similar but the issue you hit seems a .Xauthority one not a .ICEauthority one

Changed in lightdm (Ubuntu):
importance: Undecided → High
status: New → Confirmed
assignee: nobody → Michael Terry (mterry)
Revision history for this message
Sebastien Bacher (seb128) wrote :

Could be a race similar from the issue which r1004 tried to address previously:
http://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/1004

Revision history for this message
Barry Warsaw (barry) wrote :

This is almost certainly an ecryptfs related issue. You don't actually need to remove ~/.Xauthority, you just need to have your homedir decrypt/mounted via remote ssh or vt login. If not, you get dumped back to the login screen. If you're ssh'd in, login works fine.

Revision history for this message
Timo Kluck (tkluck) wrote :

I am experiencing the bug that Barry Warsaw describes: I cannot login unless I login to a virtual terminal first (which, possibly relatedly, mounts my ecryptfs partition).

I could attach additional debugging info. Please let me know if you need this, and also whether I should open an new bug for that.

Sebastien Bacher (seb128)
summary: - Cannot login unless ~/.Xauthority is removed
+ Cannot login into ecrypts directories if not unmounted before
Revision history for this message
sebastian-s (sebastian-s) wrote :

I don't what the .Xauthority is for but I can tell that I do shut down my machine properly. Might this be a Ecryptfs issue?

Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package lightdm - 0.9.3-0ubuntu4

---------------
lightdm (0.9.3-0ubuntu4) oneiric; urgency=low

  * Updated to current trunk, that's a candidate version version for the next
    update, it fixes those issues:
    - login doesn't work for ecryptfs users (lp: #823775, #824594)
    - "lightdm-gtk-greeter segfaults in get_user_iter when adding a new user"
    (lp: #822470)
    - fix fallback from org.freedesktop.Accounts to passwd format (lp: #817835)
    - empty autologin-user should not be passed to pam (lp: #817581)
  * debian/control.in:
    - build-depends on quilt, it's needed with source v1
    - don't build-depends on valac, vala is not used in the current version
  * debian/lightdm.install:
    - install the manpages as well
  * debian/lightdm.manpages:
    - dropped, it's installed by the upstream make install
  * debian/rules:
    - use the quilt rule
  * debian/source/format:
    - use source v1, it works better with vcs workflows
 -- Sebastien Bacher <email address hidden> Thu, 18 Aug 2011 15:29:42 +0200

Changed in lightdm (Ubuntu):
status: Confirmed → Fix Released
Sebastien Bacher (seb128)
Changed in lightdm:
status: New → Fix Committed
Robert Ancell (robert-ancell)
Changed in lightdm:
status: Fix Committed → Fix Released
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