Thank you for the information!
I will try this.
Kind Regards


   On Tuesday, January 4, 2022, 10:15:47 AM CST, swissz <email address hidden> wrote:  
 
 I have found a workaround that kind of works ... The problem is with the
sane library, so it has to be downgraded. I restored
/usr/lib/x86_64-linux-gnu/sane/libsane-genesys.so.1.0.27 from my
previous Ubuntu 18.04 installation and linked it instead of the current
version, and that's all, it works for me in Ubuntu 21.10.

# ls -l /usr/lib/x86_64-linux-gnu/sane/libsane-genesys.so.1
lrwxrwxrwx 1 root root 25 Dez 10 22:52 /usr/lib/x86_64-linux-gnu/sane/libsane-genesys.so.1 -> libsane-genesys.so.1.0.32

# cd /usr/lib/x86_64-linux-gnu/sane
# ln -fs libsane-genesys.so.1.0.27 libsane-genesys.so.1
# ls -l libsane-genesys.so*
lrwxrwxrwx 1 root root      25 Jan  4 16:56 libsane-genesys.so.1 -> libsane-genesys.so.1.0.27

You can try to download the libsane-genesys.so.1.0.27 from here
https://ubuntu.pkgs.org/18.04/ubuntu-main-
amd64/libsane1_1.0.27-1~experimental3ubuntu2_amd64.deb.html

-- 
You received this bug notification because you are subscribed to the bug
report.
https://bugs.launchpad.net/bugs/1888238

Title:
  Ubuntu 20.04 simple-scan brightness and contrast controls have no
  effect

Status in Simple Scan:
  Unknown
Status in simple-scan package in Ubuntu:
  Incomplete

Bug description:
  Ubuntu 20.04 simple-scan.  The Brightness and Contrast controls have
  no effect.  No matter how I position the sliders the scan image
  remains the same, ie, a dark background.  It is as if the controls are
  not 'connected'.

  Ubuntu 20.04 is up to date.  The scanner is a Cannon LiDE60.

  I have 19.10 in another partition. Simple-scan works as expected.
  Ditto for 18.04.

  Regards.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: simple-scan 3.36.0-0ubuntu1
  ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
  Uname: Linux 5.4.0-40-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.3
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Jul 20 09:47:52 2020
  InstallationDate: Installed on 2020-05-12 (68 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  MachineType: Hewlett-Packard HP EliteBook 8570p
  ProcEnviron:
  PATH=(custom, no user)
  XDG_RUNTIME_DIR=<set>
  LANG=en_US.UTF-8
  SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-40-generic root=UUID=dc547d11-1deb-404b-988a-a88d4772e66d ro quiet splash vt.handoff=7
  SimpleScanLog:
  
  SourcePackage: simple-scan
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/05/2012
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68ICF Ver. F.32
  dmi.board.name: 17A7
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 42.32
  dmi.chassis.asset.tag: 8022456
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68ICFVer.F.32:bd12/05/2012:svnHewlett-Packard:pnHPEliteBook8570p:pvrA1029D1102:rvnHewlett-Packard:rn17A7:rvrKBCVersion42.32:cvnHewlett-Packard:ct10:cvr:
  dmi.product.family: 103C_5336AN G=N L=BUS B=HP S=ELI
  dmi.product.name: HP EliteBook 8570p
  dmi.product.sku: D2C13UP#ABA
  dmi.product.version: A1029D1102
  dmi.sys.vendor: Hewlett-Packard

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