Comment 25 for bug 344916

Thank you very much for the above attachments. The problem seems to be related to the installation process which didn't override the configuration file. So, the backend manager is not being blacklisted and is attempted to be run as the user, whereas it should actually be run by dbus. For a temporary workaround until a new package is released, please try adding the following line in /etc/checkbox.d/checkbox.conf under the [checkbox/plugins] section:

blacklist = backend_manager