Public bug reported:
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
** Affects: simple-scan (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1888238
Title:
Ubuntu 20.04 simple-scan brightness and contrast controls have no
effect
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