Ubuntu
simple-scan package

connection to scanner very slow

Bug #1921794 reported by Amnon Yekutieli on 2021-03-29

This bug affects 2 people

Affects		Status	Importance	Assigned to	Milestone
	simple-scan (Ubuntu)	Expired	Undecided	Unassigned

Bug Description

When starting simple scan it does "search for scanners" for about 30 seconds, until "ready to scan".

Previously (forgot when that was, but same hardware) it was almost immediate.

Seems to be some software bug.

---------------------------------------

The printer/scanner and driver are:

Description: HP LaserJet MFP M426fdn
Location: Local Printer
Driver: HP LaserJet Pro MFP M426-M427 Postscript
via CUPS.

---------------------------------------

Running
hp-check -i
gives this output:

Missing Required Dependencies
error: 'libcups2' package is missing/incompatible
error: 'python3-pyqt4' package is missing/incompatible
error: 'gtk2-engines-pixbuf' package is missing/incompatible

Missing Optional Dependencies
error: 'python3-dbus.mainloop.qt' package is missing/incompatible

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: simple-scan 3.36.3-0ubuntu0.20.04.0
ProcVersionSignature: Ubuntu 5.4.0-70.78-generic 5.4.94
Uname: Linux 5.4.0-70-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Tue Mar 30 00:59:36 2021
ExecutablePath: /usr/bin/simple-scan
InstallationDate: Installed on 2018-06-15 (1018 days ago)
InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
LocalLibraries: /usr/local/lib/libjpeg-x86_64.so.9.2.0
MachineType: Dell Inc. OptiPlex 7040
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-70-generic root=UUID=63e54e9f-567c-498f-883a-5216d348a80f ro quiet splash vt.handoff=7
SourcePackage: simple-scan
UpgradeStatus: Upgraded to focal on 2020-08-20 (221 days ago)
dmi.bios.date: 07/19/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.15.5
dmi.board.name: 0HD5W2
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.15.5:bd07/19/2019:svnDellInc.:pnOptiPlex7040:pvr:rvnDellInc.:rn0HD5W2:rvrA01:cvnDellInc.:ct3:cvr:
dmi.product.family: OptiPlex
dmi.product.name: OptiPlex 7040
dmi.product.sku: 06B9
dmi.sys.vendor: Dell Inc.

Tags:

Revision history for this message

Amnon Yekutieli (amyekut) wrote on 2021-03-29:

CurrentDmesg.txt Edit (67.8 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (10.1 KiB, text/plain; charset="utf-8")
DriverPackageVersions.txt Edit (195 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (9.7 KiB, text/plain; charset="utf-8")
Lspci-vt.txt Edit (1.2 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (618 bytes, text/plain; charset="utf-8")
Lsusb-t.txt Edit (1.3 KiB, text/plain; charset="utf-8")
Lsusb-v.txt Edit (37.6 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (10.3 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (1.3 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (112 bytes, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (4.2 KiB, text/plain; charset="utf-8")
ProcMaps.txt Edit (168.0 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (4.9 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (1.3 KiB, text/plain; charset="utf-8")
SimpleScanLog.txt Edit (160.0 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (223.9 KiB, text/plain; charset="utf-8")
XsessionErrors.txt Edit (2.1 KiB, text/plain; charset="utf-8")
acpidump.txt Edit (887.0 KiB, text/plain; charset="utf-8")

Revision history for this message

Bartosz Kosiorek (gang65) wrote on 2021-03-30:

Please open terminal and set following variable:

export SANE_DEBUG_DLL=255

Then run simple-scan with command:

simple-scan

The output should be similar to:
https://gitlab.gnome.org/GNOME/simple-scan/-/tree/master

You could investigate which backend is taking so long from logs.

You could disable other (not hpaio) sane backends in file:

sudo gedit /etc/sane.d/dll.conf

Changed in simple-scan (Ubuntu):
status:	New → Incomplete

Revision history for this message

Bartosz Kosiorek (gang65) wrote on 2021-03-30:

Please attach the output from the simple-scan after enabling "SANE_DEBUG_DLL=255"

Revision history for this message

Amnon Yekutieli (amyekut) wrote on 2021-04-01:

output log Edit (105.1 KiB, text/plain)

I did as requested. The konsole output is attached as simple-scan-output.txt. (also the scan as pdf).
Not all output was saved - the konsole seems to retain only a certain amount of text.

Revision history for this message

Amnon Yekutieli (amyekut) wrote on 2021-04-01:

pdf of scan Edit (45.1 KiB, application/pdf)

Revision history for this message

Amnon Yekutieli (amyekut) wrote on 2021-04-01:

simple scan log from $HOME/.cache/simple-scan Edit (63.2 KiB, text/plain)

Revision history for this message

Launchpad Janitor (janitor) wrote on 2021-06-01:

[Expired for simple-scan (Ubuntu) because there has been no activity for 60 days.]

Changed in simple-scan (Ubuntu):
status:	Incomplete → Expired

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Ubuntusimple-scan package

connection to scanner very slow

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Ubuntu
simple-scan package