I did another test and it seems that in CUPS 1.4.0-3 the USB backend still conflicts with AppArmor. Please run
sudo aa-complain cupsd for the time being. Please report here whether USB printing works for you then, for us to know whether the other changes are working correctly. ** Changed in: cups (Ubuntu Karmic) Status: Fix Released => Triaged -- usblp Kernel module needs to be removed and /dev/bus/usb/*/* made accessible for USB printers to work with CUPS 1.4.x https://bugs.launchpad.net/bugs/420015 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs