Hi, Houni, really thanks for your help, I workaround to this issue. Specifying USB in plustek.conf does not fix the issue, suggestion of Pascal Dormeau works for me (https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=971584#57).
$ cat /etc/tmpfiles.d/my-sane-lock.conf d /var/lock/sane 0775 root scanner - - I confirm you that this issue is still present, none of this work was requested in 20.04 version. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1901381 Title: libsane regression error in Ubuntu 20.10: scanner not found To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1901381/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs