Also, I just confirmed that although Xsane and other scan programs like Simple Scan and Skanlite detect the scanner (only if it is already plugged in when Kubuntu 18.04 starts), however only Xsane works Ok (except that in this 18.04 version of Kubuntu Xsane program only starts receiving data once the exploration of the document has finished, which makes much slower scanning several documents, as I describe in the Bug #1771520.
Simple Scan and Skanlite detects the EPSON Perfection V39 scanner (if already plugged before starting Kubuntu 18.04 as above said) but don't start scanning. -- 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