The above workaround at post 117 also works for the Epson V300.

You received this bug notification because you are a member of Desktop
Packages, which is subscribed to sane-backends in Ubuntu.

  the change from libsane to libsane1 broke many (all?) 3rd party plug-
  ins for sane

Status in sane-backends package in Ubuntu:
  Fix Released
Status in sane-backends source package in Artful:
  Fix Released
Status in sane-backends package in Debian:

Bug description:
  Note to SRU Team
  The first proposed fix (1.0.27-1~experimental2ubuntu2) failed because it 
needed to be a versioned Provides, not just a Provides.


  1) The Debian maintainer renamed libsane to libsane1-experimental "to
  match with the soname". This apparently fixes a Lintian warning, but
  makes installing 3rd-party plug-ins hard, as they typically depend on
  "libsane", not on "libsane1". The first try to add a "Provides:
  libsane" to libsane1 (which created a virtual package) didn't make
  drivers installable that claim to depend on a minimum version of
  libsane as virtual packages are ignored in this case.

  2) The soname change might be justified by the new version breaking
  (several? most?) 3rd party plug-ins even if the library version number
  doesn't indicate any bigger change than any ordinary new version of
  the library - which might indicate that this phenomenon might be an
  upstream bug.

  libsane 1.0.25 in zesty includes
  libsane1 1.0.27 in artful includes

  It is to note that depending on the manufacturer for many old scanners
  there won't be new versions of the plug-ins that are recompiled like

  Test Case
  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.

  Impossibility of workarounds
  Just installing an old version of libsane is impossible as it uninstalls 
libgtk (which depends on libsane1 which conflicts with libsane) making the 
system basically useless.

  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:

Mailing list:
Post to     :
Unsubscribe :
More help   :

Reply via email to