Lubuntu don't start after installation, WARNING: drawing failure for widget `UserList': NULL pointer

[Fabio Marconi]

Hello
Installation went ok till the end, but at reboot, many blank flashes, disk spinning with red light costantly on, but nothing.

In syslog:
unity-greeter[1589] trap int3 ip:7fec4fbe4b3b sp:7fff55e32490 error:0

Thanks
Fabio

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity-greeter 0.1.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-9.16-generic 3.2.1
Uname: Linux 3.2.0-9-generic x86_64
ApportVersion: 1.90-0ubuntu2
Architecture: amd64
CasperVersion: 1.298
Date: Wed Jan 18 16:13:51 2012
LiveMediaBuild: Lubuntu 12.04 "Precise Pangolin" - Alpha amd64 (20120117)
ProcEnviron:
 PATH=(custom, no user)
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SourcePackage: unity-greeter
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/918243

[Fabio Marconi (fabiomarconi)]

from 20120118 x-0-greeter.log

[Fabio Marconi (fabiomarconi)]

lightdm of 20120118

[Fabio Marconi (fabiomarconi)]

Reproduced and confirmed by atttached logs

[Phill Whiteside (phillw)]

marked as duplicate of 918401