Im sorry but https://launchpad.net/ubuntu/+source/sane- backends/1.0.27-1~experimental2ubuntu2 doesn't solve the problem.
This is what I get when I want to install my Epson V300 (sorry comments are in german, but I'm sure you understand what goes wrong: libsane is missing): Hinweis: »libsane1« wird an Stelle von »libsane« gewählt. libsane1 ist schon die neueste Version (1.0.27-1~experimental2ubuntu2). 0 aktualisiert, 0 neu installiert, 0 zu entfernen und 0 nicht aktualisiert. Vormals nicht ausgewähltes Paket iscan wird gewählt. (Lese Datenbank ... 154273 Dateien und Verzeichnisse sind derzeit installiert.) Vorbereitung zum Entpacken von .../core/iscan_2.30.2-2_amd64.deb ... »Umleitung von /usr/share/man/man5/sane-epkowa.5.gz zu /usr/share/man/man5/sane-epkowa-deb.5.gz durch iscan« wird hinzugefügt Entpacken von iscan (2.30.2-2) ... Vorbereitung zum Entpacken von .../iscan-data_1.36.0-1_all.deb ... Entpacken von iscan-data (1.36.0-1) über (1.36.0-1) ... Vormals nicht ausgewähltes Paket esci-interpreter-gt-f720 wird gewählt. Vorbereitung zum Entpacken von .../esci-interpreter-gt-f720_0.1.1-2_amd64.deb ... Entpacken von esci-interpreter-gt-f720 (0.1.1-2) ... dpkg: Abhängigkeitsprobleme verhindern Konfiguration von iscan: iscan hängt ab von libsane (>= 1.0.11-3); aber: Paket libsane ist nicht installiert. Version von libsane auf dem System, bereitgestellt von libsane1:amd64, ist <keine>. dpkg: Fehler beim Bearbeiten des Paketes iscan (--install): Abhängigkeitsprobleme - verbleibt unkonfiguriert iscan-data (1.36.0-1) wird eingerichtet ... dpkg: Abhängigkeitsprobleme verhindern Konfiguration von esci-interpreter-gt-f720: esci-interpreter-gt-f720 hängt ab von iscan (>= 2.16.1); aber: Paket iscan ist noch nicht konfiguriert. dpkg: Fehler beim Bearbeiten des Paketes esci-interpreter-gt-f720 (--install): Abhängigkeitsprobleme - verbleibt unkonfiguriert Trigger für man-db (2.7.6.1-2) werden verarbeitet ... Trigger für gnome-menus (3.13.3-6ubuntu5) werden verarbeitet ... Trigger für desktop-file-utils (0.23-1ubuntu3) werden verarbeitet ... Trigger für mime-support (3.60ubuntu1) werden verarbeitet ... Trigger für udev (234-2ubuntu12) werden verarbeitet ... Fehler traten auf beim Bearbeiten von: iscan esci-interpreter-gt-f720 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to sane-backends in Ubuntu. https://bugs.launchpad.net/bugs/1707352 Title: the change from libsane to libsane1 broke many (all?) 3rd party plug- ins for sane Status in sane-backends package in Ubuntu: Fix Committed Status in sane-backends source package in Artful: Fix Committed Status in sane-backends package in Debian: New Bug description: Impact ====== The Debian maintainer renamed libsane to libsane1 "to match with the soname" apparently to fix a Lintian warning. libsane 1.0.25 in zesty includes libsane.so.1.25 libsane1 1.0.27 in artful includes libsane.so.1.27 This appears to be no bigger change than any ordinary new version of the library. The library rename makes it impossible to install any scanner drivers for libsane that are distributed as a .deb unless the driver distributors recompiles against Ubuntu 17.10+. Therefore, adding Provides: libsane seems reasonable here. Test Case ========= Visit http://support.epson.net/linux/en/iscan_c.html Download the amd64 deb .tar.gz Unzip it. Install the iscan .deb from the core folder. It won't install before this SRU because it Depends: libsane Regression Potential ==================== The fix here was proposed to the Debian maintainer in July but there's been virtually zero response on it. In the meantime the workaround that was proposed initially has started to result in automatically uninstalling gtk - which makes the system basically useless. It doesn't seem like adding the Provides will make things any worse for third-party drivers but it has a goodme chance of making things better for some. Original Bug Report =================== I don't know if that can be prevented in the long run. But both brscan (for my brother scanner) and iscan (for my epson scanners) have been broken by the change from libsane to libsane1. For iscan I have unpackaged the debian package, changed the dependency it contains from libsane to libsane1 and installed the changed package. But even then my epson scanners no more work leaving me without any scanner => Reporting a bug. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: libsane1 1.0.27-1~experimental1ubuntu2 Uname: Linux 4.13.0-041300rc2-lowlatency x86_64 ApportVersion: 2.20.6-0ubuntu4 Architecture: amd64 Date: Sat Jul 29 08:38:15 2017 EcryptfsInUse: Yes SourcePackage: sane-backends UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1707352/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
