After further investigation, the problem disappears when I kill seahorse-daemon, but comes back when I relaunch it... :-/
Not sure if this is related, but when I run seahorse-daemon, I get the following (warning?) message: pa@nua:~$ killall -q seahorse-daemon; seahorse-daemon -d ** (seahorse-daemon:27610): WARNING **: Could not load desktop file '/usr/share/gnome/autostart/seahorse-daemon.desktop': No such file or directory ** Message: init gpgme version 1.2.0 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to seahorse in Ubuntu. https://bugs.launchpad.net/bugs/1154049 Title: Crashes with GLib-GIO-CRITICAL. UnknownMethod: Method "DescribeAll" Status in “seahorse” package in Ubuntu: Confirmed Bug description: I cannot open seahorse anymore, even from the terminal: (seahorse:23605): GLib-GIO-CRITICAL **: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: Method "DescribeAll" with signature "" on interface "org.gtk.Actions" doesn't exist I'm on GNOME Shell 3.6.2 with Ubunut 12.10 on 64bit. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/seahorse/+bug/1154049/+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