This is what I get in syslog after the reboot. I stopped XBMC and then made a reboot. The delay between spin down of the fans and presentation of the login screen was about 20 sec.
** Attachment added: "part-of-syslog" https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1129157/+attachment/3543203/+files/part-of-syslog -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1129157 Title: lightdm pausing a long time at boot Status in “consolekit” package in Ubuntu: Confirmed Status in “dbus” package in Ubuntu: New Status in “lightdm” package in Ubuntu: Confirmed Bug description: When I boot my core i7 ssd laptop, which used to take about 10s or less, it now hangs for another 20 secs with blank screen before lightdm pops up. The bootchart.png (which i'll attach) and lightdm logs show that lightdm seems to be waiting on something for that long, and nothing else seems to be going on. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: lightdm 1.4.0-0ubuntu3 ProcVersionSignature: Ubuntu 3.8.0-6.11-generic 3.8.0-rc7 Uname: Linux 3.8.0-6-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.8-0ubuntu4 Architecture: amd64 Date: Mon Feb 18 08:41:52 2013 InstallationDate: Installed on 2012-03-24 (330 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120323) LightdmConfig: [SeatDefaults] user-session=ubuntu greeter-session=unity-greeter MarkForUpload: True ProcEnviron: TERM=rxvt PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: lightdm UpgradeStatus: Upgraded to raring on 2012-12-12 (67 days ago) modified.conffile..etc.init.lightdm.conf: [modified] mtime.conffile..etc.init.lightdm.conf: 2012-04-17T09:28:07.756400 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/consolekit/+bug/1129157/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp