Ok, thank you very much for your help and patience, hoping this time is right I attach the backtrace file I have got from last error.
** Attachment added: "gdb-nautilus.txt" https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1001868/+attachment/3172441/+files/gdb-nautilus.txt -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/1001868 Title: Selecting property file or folder freezing it Status in “nautilus” package in Ubuntu: Incomplete Bug description: Sometimes when I try to select (right mouse) the property of a folder or file, the system freezes the folder that contains it getting dark grey and a window shows up telling "GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)". I have not other choice to close the window. No other effect I have noticed and as it has come it goes away. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1001868/+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