Just found the solution for this bug, in https://forums.linuxmint.com/viewtopic.php?t=221071
It's that xsltproc has to be installed. Once I did it and restarted, now Xsane detects the scanner also when I unplug and then plug again the usb cable, that's to say now it has the plug & play or hot-plug capability. And works Ok. Simple Scan and Skanlite detects the EPSON Perfection V39 scanner (now also with the hot-plug capability) but don't start scanning yet. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1771525 Title: Scanner not detected if plugged once Kubuntu 18.04 is running To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/usbutils/+bug/1771525/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
