** Changed in: sane-backends (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1662007

Title:
  backend, libsane, genesys, Gimp, libreoffice,canon LiDE 220

Status in sane-backends package in Ubuntu:
  Invalid

Bug description:
  Description:  Ubuntu 16.04.1 LTS
  Release:      16.04
  libsane:
    Installiert:           1.0.25+git20150528-1ubuntu2
    Installationskandidat: 1.0.25+git20150528-1ubuntu2
    Versionstabelle:
   *** 1.0.25+git20150528-1ubuntu2 500
          500 http://de.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
          100 /var/lib/dpkg/status

  sane-utils:
    Installiert:           1.0.25+git20150528-1ubuntu2
    Installationskandidat: 1.0.25+git20150528-1ubuntu2
    Versionstabelle:
   *** 1.0.25+git20150528-1ubuntu2 500
          500 http://de.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
          100 /var/lib/dpkg/status

  libreoffice:
    Installiert:           1:5.1.4-0ubuntu1
    Installationskandidat: 1:5.1.4-0ubuntu1
    Versionstabelle:
   *** 1:5.1.4-0ubuntu1 500
          500 http://de.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 
Packages
          500 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 
Packages
          100 /var/lib/dpkg/status
       1:5.1.2-0ubuntu1 500
          500 http://de.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
  gimp:
    Installiert:           2.8.16-1ubuntu1.1
    Installationskandidat: 2.8.16-1ubuntu1.1
    Versionstabelle:
   *** 2.8.16-1ubuntu1.1 500
          500 http://de.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 
Packages
          500 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 
Packages
          100 /var/lib/dpkg/status
       2.8.16-1ubuntu1 500
          500 http://de.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
  xsane:
    Installiert:           0.999-3ubuntu1
    Installationskandidat: 0.999-3ubuntu1
    Versionstabelle:
   *** 0.999-3ubuntu1 500
          500 http://de.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
          100 /var/lib/dpkg/status

  lsusb:
  Bus 002 Device 012: ID 04a9:190f Canon, Inc.

  sane-find-scanner -q
  found USB scanner (vendor=0x04a9 [Canon], product=0x190f [CanoScan]) at 
libusb:002:012


  First I want to  mention that I am perfectly satisfied with the
  perfomance and usabilty of lubuntu especially with old, lowend
  Laptops. I am thankfull to all those people which make this great
  distribution possible. For all my problems so far I found a solution
  (I am on board since lubuntu 12.04), however the following I could not
  fix myself.

  I expect that the backend genesys (part of libsane)  used with the scanner 
LIDE 220 allows me to read scans directly with libreoffice or gimp to the 
respective application.
  What happens:
  Libreoffice "sees" the scanner, however I cannot select the resolution. First 
it is 75 any other selection ends up in 4800. I can read one scan in resolution 
75(?) the next scan results in a libreoffice crash. Errors are eratic. But 
libreoffice  is unusable with the backend genesys.
  Please note unpluging the LIDE 220 and plugging Epson 1640su scanner (backend 
epson2) everything works as expected and I can scan as often as I will with any 
resolution I choose.

  Gimp does not include either xsane ore xscanimage as plugin if the LIDE 220 
via genesys is active.
  however the plugins are found and active if I use for example a Epson 1640su 
(backend epson2) and I can scan everything.

  Remark:  
  genesys works perfectly with scanimage, xsane, xscanimage, Simple scan.

  I can only guess that the interface of the backend genesys has a flaw, which 
makes interfacing to libreoffice and gimp impossible. I would not expect the 
error on the Libreoffice or gimp side, since both work with epson2 backend 
happily. Confusing is, the genesys works perfectly with the frontends
  scanimage, xsane, xscanimage and SimpleScan. I would look for the flaw in the 
way the resolution is communicated back and force from the frontend to the 
backend. However, I do not know details about the sane API.

  Remark1: I played the game also with  the 32Bit version of Lubuntu 16.04.1 
LTS In that version the backend
  genesys does not work correctly at all. Black scans, the scanner makes awfull 
noice. Upgrade to rolfbench version 1.026 of libsane makes only scanimage work, 
but xsane and other do not work at all.
  again everything works as expected if I use the Epson scanner via backend 
epson2 (no need to upgrade to rolfbensch version 1.026 of libsane).

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: libsane 1.0.25+git20150528-1ubuntu2
  ProcVersionSignature: Ubuntu 4.4.0-62.83-generic 4.4.40
  Uname: Linux 4.4.0-62-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  CurrentDesktop: LXDE
  Date: Sun Feb  5 19:40:04 2017
  InstallationDate: Installed on 2017-01-12 (24 days ago)
  InstallationMedia: Lubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160720)
  SourcePackage: sane-backends
  UpgradeStatus: No upgrade log present (probably fresh install)

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