Seems to be an issue with apparmor. Here is my output of 'journalctl -b 0':
Mai 19 10:35:46 termy dbus-daemon[1076]: [system] Activating service name='org.opensuse.CupsPkHelper.Mechanism' requested by ':1.1031' (uid=1000 pid=226173 comm="/usr/bin/python3 /us> Mai 19 10:35:46 termy dbus-daemon[1076]: [system] Successfully activated service 'org.opensuse.CupsPkHelper.Mechanism' Mai 19 10:35:46 termy audit[213753]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/proc/sys/kernel/random/boot_id" pid=213753 comm="cupsd" requested_mask="r> Mai 19 10:35:46 termy audit[213753]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/proc/sys/kernel/random/boot_id" pid=213753 comm="cupsd" requested_mask="r> Mai 19 10:35:46 termy audit[213753]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/proc/sys/kernel/random/boot_id" pid=213753 comm="cupsd" requested_mask="r> Mai 19 10:35:46 termy audit[213753]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/proc/sys/kernel/random/boot_id" pid=213753 comm="cupsd" requested_mask="r> Mai 19 10:35:46 termy audit[213753]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/proc/sys/kernel/random/boot_id" pid=213753 comm="cupsd" requested_mask="r> Mai 19 10:35:46 termy kernel: audit: type=1400 audit(1589877346.366:10344): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/proc/sys/kernel/random/boot_id" pid=21> Mai 19 10:35:46 termy kernel: audit: type=1400 audit(1589877346.366:10345): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/proc/sys/kernel/random/boot_id" pid=21> Mai 19 10:35:46 termy kernel: audit: type=1400 audit(1589877346.366:10346): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/proc/sys/kernel/random/boot_id" pid=21> Mai 19 10:35:46 termy kernel: audit: type=1400 audit(1589877346.366:10347): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/proc/sys/kernel/random/boot_id" pid=21> Mai 19 10:35:46 termy kernel: audit: type=1400 audit(1589877346.366:10348): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/proc/sys/kernel/random/boot_id" pid=21> Mai 19 10:35:46 termy kernel: usblp2: removed Mai 19 10:35:46 termy kernel: usblp 1-1.1.2:1.0: usblp2: USB Bidirectional printer dev 14 if 0 alt 0 proto 2 vid 0x04F9 pid 0x018C Mai 19 10:35:46 termy dbus-daemon[1745]: apparmor="DENIED" operation="dbus_method_call" bus="session" path="/org/gtk/Notifications" interface="org.gtk.Notifications" member="AddNoti> I don't see how not being able to add a printer is of 'Low' importance though. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to system-config-printer in Ubuntu. https://bugs.launchpad.net/bugs/1721704 Title: Printer settings stuck on loading drivers database Status in system-config-printer package in Ubuntu: Incomplete Bug description: 1) Description: Ubuntu Artful Aardvark (development branch) Release: 17.10 2) ubuntu-settings: Installed: 17.10.17 Candidate: 17.10.17 3) The printer configuration goes fine and I can print 4) Printer settings stuck on loading drivers database and finally no drivers list available. Only 'cancel' button active. Note: I'm trying to configure a Brother HL-2030 connected to Network through a FritzBox 7940 router. The printer works fine both on Fedora and macOS X systems. I opened 'System Settings', then select 'Devices' > 'Printers' > 'Add a Printer'. I entered the router address and the window shows me correctly a 'JetDirect-Printer' on 192.168.178.1. I selected the printer and pressed the 'Add' button, a window 'Select Printer Driver' appears and stuck with 'Loading drivers database...'. After about 2 minutes, stopped loading and remains blank. No drivers selection is available and I can only push the 'Cancel' button. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/system-config-printer/+bug/1721704/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

