I was trying to solve a problem I had with Libreoffice and installed/uninstalled a couple of packages (it is a fresh install of 12.10 Quantal). I don't know if it is related but there is now a long pause after the login screen, before showing the desktop. I have a very recent Thinkpad laptop with SSD drive and the whole boot and login process used to last only 8 seconds before this happened!
After entering my password on the login screen, the screen turns black for about 40 seconds, before the gnome desktop is displayed.
How can I find out where the problem comes from? Is there a way to troubleshoot this? Bootchart only monitors the activity until the login screen. so it is useless here.
It is the 3rd time I do a french install in 2 weeks because of random problems like this one: I am really getting tired of losing so much time fiddling with settings.
Thank you for your help!