Thanks for all and sorry for the previous message (a was a bit irritated!) This week I could not answer you since I was in the University.
Well, I have posted a bug on the gnome bugzilla too, with some logs : http://bugzilla.gnome.org/show_bug.cgi?id=357462 ** Attachment added: "gnome-power-management log" http://librarian.launchpad.net/4542071/gpm.log -- Wrong value of the gnome-power-manager gauge https://launchpad.net/bugs/59913 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs