This bug was fixed in the package lightdm - 1.6.0-0ubuntu4
---------------
lightdm (1.6.0-0ubuntu4) raring; urgency=low
* debian/patches/09_corrupt_xauth.patch:
- Handle corrupt X authority files correctly (LP: #1234400)
-- Robert Ancell <[email protected]> Tue, 08 Oct 2013 14:27:05
+1300
** Changed in: lightdm (Ubuntu Raring)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1234400
Title:
Cannot log in users if their Xauthority file is corrupt.
Status in Light Display Manager:
Fix Released
Status in Light Display Manager 1.6 series:
Fix Released
Status in Light Display Manager 1.7 series:
Fix Released
Status in “lightdm” package in Ubuntu:
Fix Released
Status in “lightdm” source package in Raring:
Fix Released
Status in “lightdm” source package in Saucy:
Fix Released
Bug description:
Impact:
If a users X authority file contains invalid data the user will not be able
to log in with LightDM until the file is corrected or removed. The reason for
the corruption has not been identified.
To reproduce:
1. Stop lightdm
$ sudo stop lightdm
2. Create an invalid X authority file in the home directory of a user, e.g.
from a text VT:
$ cp /etc/hostname ~/.Xauthority
3. Start lightdm
$ sudo start lightdm
4. Log into the user account in the greeter
Expected result:
Logged into graphical session.
Observed result:
Returned to greeter, graphical session not shown.
Regression potential:
Change is small and was a regression in 1.6 due to accidental removal line
resetting the error variable after reading the existing X authority file. Seems
unlikely to cause any side-effects.
To manage notifications about this bug go to:
https://bugs.launchpad.net/lightdm/+bug/1234400/+subscriptions
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