Maybe this is the resolution for you:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/610093
--
You received this bug notification because you are a member of Ubuntu
Desktop Bugs, which is subscribed to gnome-power-manager in ubuntu.
https://bugs.launchpad.net/bugs/573496
Title:
laptop
[Expired for gnome-power-manager (Ubuntu) because there has been no
activity for 60 days.]
** Changed in: gnome-power-manager (Ubuntu)
Status: Incomplete = Expired
--
You received this bug notification because you are a member of Ubuntu
Desktop Bugs, which is subscribed to
I can't reproduce this on an ThinkPad Edge 14 (Intel) running Lucid.
Is the fan still running when the lid is closed? What happens when you
suspend it manually?
--
laptop doesn't go into suspend mode when lid closed
https://bugs.launchpad.net/bugs/573496
You received this bug notification
** Attachment added: dmesg
http://launchpadlibrarian.net/47191575/dmesg
--
laptop doesn't go into suspend mode when lid closed
https://bugs.launchpad.net/bugs/573496
You received this bug notification because you are a member of Ubuntu
Desktop Bugs, which is subscribed to gnome-power-manager