@Javier: Till, who is assigned to this bug now, can probably help you to get debug informations for that issue. I'm not sure if system-config- printer has a debug log by itself but I suspect cups logs have some informations. If that's not enough we can still do a debug build of gnome-control-center to get extra details...
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1202198 Title: gnome-settings daemon notifies as error an info message Status in “gnome-settings-daemon” package in Ubuntu: Confirmed Bug description: When sending a document to a printer, gnome-settings daemon will show a message like: ERROR: connecting to printer Nevertheless, the document will print without any issue. Actually this message is a warning or info message, as it is telling the user that it is connecting to the printer. This leads to users sending twice or more any document as they think an issue has happened. Please find enclosed a screenshoot which shows the error message on the top left of the window ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: gnome-settings-daemon 3.4.2-0ubuntu0.6.2 [modified: usr/share/glib-2.0/schemas/org.gnome.settings-daemon.plugins.print-notifications.gschema.xml] Uname: Linux 3.3.6-030306-generic i686 ApportVersion: 2.0.1-0ubuntu17.3 Architecture: i386 Date: Wed Jul 17 15:30:23 2013 InstallationMedia: MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=es_ES.UTF-8 SHELL=/bin/bash SourcePackage: gnome-settings-daemon UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1202198/+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