I don't tend to do dis-upgrades willy nilly. However I have recently upgraded CUPS packages which I suspect was what you were getting at.
The output of lpinfo -v has changed to: network socket network beh network bluetooth direct usb://Brother/HL-1050%20series direct hp:/no_device_found network http network ipp network lpd network smb but as before from time to time the direct usb:// line will disappear even though the device is still shown in lsusb and there are no messages of its disappearence in dmesg. ** Changed in: gnome-cups-manager (Ubuntu) Status: Needs Info => Unconfirmed -- Hl-1050 is not detected properly https://launchpad.net/bugs/35638 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs