Comment 7 for bug 1618290

ok - some feedback here - ubuntu gnome 16.10 beta 2 with an apt full-update installed in virtualbox VM + virtualbox guest additions and dkms.

1. Settings - Printer icon - no crash. It detects my HP Wifi based printer on the "add a new printer" dialog
2. Selecting the printer and clicking the add button displays the message "failed to add new printer"

Looking at journal -ae --full these are the relevant trace issues:

Oct 01 17:52:16 dad-VirtualBox dbus[596]: [system] Activating service name='org.opensuse.CupsPkHelper.Mechanism' (using servicehelper)
Oct 01 17:52:16 dad-VirtualBox dbus[596]: [system] Successfully activated service 'org.opensuse.CupsPkHelper.Mechanism'
Oct 01 17:52:16 dad-VirtualBox audit[2274]: AVC apparmor="DENIED" operation="capable" profile="/usr/sbin/cupsd" pid=2274 comm="usb" capability=35 ca
Oct 01 17:52:16 dad-VirtualBox kernel: audit_printk_skb: 39 callbacks suppressed
Oct 01 17:52:16 dad-VirtualBox kernel: audit: type=1400 audit(1475340736.806:25): apparmor="DENIED" operation="capable" profile="/usr/sbin/cupsd" pid
Oct 01 17:52:17 dad-VirtualBox gnome-control-center.desktop[2240]: mkdir failed on directory /var/cache/samba: Permission denied
Oct 01 17:52:26 dad-VirtualBox dbus-daemon[1097]: Activating service name='org.fedoraproject.Config.Printing'
Oct 01 17:52:26 dad-VirtualBox org.fedoraproject.Config.Printing[1097]: /usr/bin/scp-dbus-service: 3: exec: /usr/share/system-config-printer/scp-dbus
Oct 01 17:52:26 dad-VirtualBox dbus-daemon[1097]: Activated service 'org.fedoraproject.Config.Printing' failed: Process org.fedoraproject.Config.Prin
Oct 01 17:52:26 dad-VirtualBox gnome-control-c[2240]: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.fedoraproject.Config.Prin
Oct 01 17:52:26 dad-VirtualBox dbus-daemon[1097]: Activating service name='org.fedoraproject.Config.Printing'
Oct 01 17:52:26 dad-VirtualBox org.fedoraproject.Config.Printing[1097]: /usr/bin/scp-dbus-service: 3: exec: /usr/share/system-config-printer/scp-dbus
Oct 01 17:52:26 dad-VirtualBox dbus-daemon[1097]: Activated service 'org.fedoraproject.Config.Printing' failed: Process org.fedoraproject.Config.Prin
Oct 01 17:52:26 dad-VirtualBox gnome-control-c[2240]: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.fedoraproject.Config.Prin
Oct 01 17:52:26 dad-VirtualBox /hpfax[2304]: [2304]: error: Failed to create /var/spool/cups/tmp/.hplip
Oct 01 17:52:26 dad-VirtualBox dbus-daemon[1097]: Activating service name='org.fedoraproject.Config.Printing'
Oct 01 17:52:26 dad-VirtualBox org.fedoraproject.Config.Printing[1097]: /usr/bin/scp-dbus-service: 3: exec: /usr/share/system-config-printer/scp-dbus
Oct 01 17:52:26 dad-VirtualBox dbus-daemon[1097]: Activated service 'org.fedoraproject.Config.Printing' failed: Process org.fedoraproject.Config.Prin
Oct

To solve the 'cupsd DENIED' type messages I did:

sudo apt install apparmor-utils

To solve the /var/cache/samba permission denied I did:

sudo apt install samba-common

To solve the daemon messages "Oct 01 17:52:26 dad-VirtualBox org.fedoraproject.Config.Printing[1097]: /usr/bin/scp-dbus-service: 3: exec: /usr/share/system-config-printer/scp-dbus"

sudo apt install system-config-printer-gnome

After installing the above, the next time I clicked the printer icon, choose my HP WIFI printer and clicked the add button I see a notification OSD message that the printer has been added before the dialog disappears:

Oct 01 18:02:18 dad-VirtualBox dbus[596]: [system] Activating service name='org.opensuse.CupsPkHelper.Mechanism' (using servicehelper)
Oct 01 18:02:18 dad-VirtualBox dbus[596]: [system] Successfully activated service 'org.opensuse.CupsPkHelper.Mechanism'
Oct 01 18:02:25 dad-VirtualBox dbus-daemon[1097]: Activating service name='org.fedoraproject.Config.Printing'
Oct 01 18:02:26 dad-VirtualBox dbus-daemon[1097]: Successfully activated service 'org.fedoraproject.Config.Printing'
Oct 01 18:02:35 dad-VirtualBox colord[1640]: failed to get session [pid 571]: No such device or address
Oct 01 18:02:35 dad-VirtualBox kernel: gnome-control-c[5073]: segfault at 100ee40c ip 00007f533cc10f06 sp 00007fffb9dbf468 error 4 in libc-2.24.s
Oct 01 18:03:05 dad-VirtualBox org.fedoraproject.Config.Printing[1097]: /usr/share/system-config-printer/scp-dbus-service.py:26: PyGIWarning: Gdk
Oct 01 18:03:05 dad-VirtualBox org.fedoraproject.Config.Printing[1097]: from gi.repository import Gdk
Oct 01 18:03:05 dad-VirtualBox org.fedoraproject.Config.Printing[1097]: /usr/share/system-config-printer/scp-dbus-service.py:27: PyGIWarning: Gtk
Oct 01 18:03:05 dad-VirtualBox org.fedoraproject.Config.Printing[1097]: from gi.repository import Gtk

i.e. you can see the segfault

Running system-printer-config from a command line actually displays that I have now my HP printer installed.

I can use gedit to print successfully - just can't go back into settings-printer icon because of the segfault