Yes, creating /var/lock/sane resolves the problem (for me) in 1.0.31. The problem is that /var/lock is a temp fs under Debian/Ubuntu and thus should be recreated on every boot, instead of once during installation (or by sane on startup).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1898905 Title: Unfunctional plustek scanner in Ubuntu 20.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1898905/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs