Public bug reported:
$ ls -ld /var/log/lightdm
drwxr-xr-x 2 root root 4096 2011-10-28 21:19 /var/log/lightdm
$
probably should be chmod 1770; chgrp lightdm; like /var/log/gdm
current permissions preclude creation of
/var/log/lightdm/x-0-greeter.log when lightdm runs the greeter as can be
seen from /var/log/lightdm/lightdm.log:
[+0.66s] DEBUG: Starting greeter session
[+0.73s] DEBUG: pam_start("lightdm-autologin", "lightdm") -> (0x8ed34f0, 0)
[+0.73s] DEBUG: Starting session unity-greeter as user lightdm logging to
/var/log/lightdm/x-0-greeter.log
[+0.73s] DEBUG: pam_authenticate(0x8ed34f0, 0) -> 0 (Success)
[+0.73s] DEBUG: pam_acct_mgmt(0x8ed34f0, 0) -> 0 (Success)
[+0.73s] DEBUG: Launching session
[+0.74s] DEBUG: pam_set_item(0x8ed34f0, 3, ":0") -> 0 (Success)
[+0.90s] DEBUG: pam_open_session(0x8ed34f0, 0) -> 0 (Success)
[+1.02s] DEBUG: Opened ConsoleKit session
596cf1ab9d446625cc96e42e00000011-1319841851.966609-1354326764
[+1.02s] DEBUG: Dropping privileges to uid 116
[+1.02s] DEBUG: Adding session authority to /var/lib/lightdm/.Xauthority
[+1.09s] DEBUG: Restoring privileges
[+1.09s] DEBUG: Launching process 1229:
/usr/lib/lightdm/lightdm-greeter-session 'unity-greeter'
[+1.09s] WARNING: Failed to open log file /var/log/lightdm/x-0-greeter.log:
Permission denied
[+1.09s] DEBUG: pam_setcred(0x8ed34f0, PAM_ESTABLISH_CRED) -> 0 (Success)
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: lightdm 1.0.1-0ubuntu6
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu3
Architecture: i386
Date: Sat Oct 29 10:05:04 2011
ProcEnviron:
LC_TIME=en_AU.UTF-8
PATH=(custom, no user)
LANG=C
SHELL=/bin/bash
SourcePackage: lightdm
UpgradeStatus: Upgraded to oneiric on 2011-10-28 (0 days ago)
** Affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug i386 oneiric running-unity
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https://bugs.launchpad.net/bugs/883313
Title:
/var/log/lightdm permissions incorrect i386 & amd64
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