Ok, now that I've finally figured out how exactly lightdm works in this
regard, I've pushed my changes to lp:~lotheac/lightdm/utmpx.
At first, I was trying to check for XDG_SESSION_CLASS_USER, but it seems
that is never set. The authentication session (which talks to the
greeter) has no class, and that same session is used to start the
user's process (hence it needs PAM very much). If authentication fails,
the authentication session is restarted. I just check if we're a greeter
after authentication, and if so, skip pam_{open,close}_session and write
the utmpx entry.
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https://bugs.launchpad.net/bugs/870297
Title:
Lightdm logins not being logged in wtmp
Status in Light Display Manager:
Confirmed
Status in “lightdm” package in Ubuntu:
Triaged
Status in “lightdm” source package in Oneiric:
Confirmed
Status in “lightdm” source package in Precise:
Confirmed
Bug description:
When logged into a graphical session, I get no acknowledgement from
who, w or last that I am logged in:
$ who
$ w
16:48:14 up 1 day, 1:08, 0 users, load average: 0.68, 0.83, 0.84
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
last only reports tty logins, not graphical logins.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: lightdm 1.0.1-0ubuntu6
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic-pae 3.0.4
Uname: Linux 3.0.0-12-generic-pae i686
NonfreeKernelModules: fglrx
ApportVersion: 1.23-0ubuntu2
Architecture: i386
Date: Fri Oct 7 16:47:23 2011
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110921.3)
ProcEnviron:
LANGUAGE=en_CA:en
PATH=(custom, user)
LANG=en_CA.UTF-8
SHELL=/bin/bash
SourcePackage: lightdm
UpgradeStatus: No upgrade log present (probably fresh install)
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