simple-scan fails to warm up the scanner

Bug #1829949 reported by sds
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
simple-scan (Ubuntu)
New
Undecided
Unassigned

Bug Description

as reported here: https://askubuntu.com/q/880880/80483

simple-scan sees the USB-powered scanner (CanoScan LiDE 110) but sometimes fails to start it up.

Usually it scans the first page in several "tries", i.e., the "scanning noise" comes out in bursts, interrupted by short pauses, and then scans the page. The second and further pages are scanned in a single burst of "scanning noise".

However, sometimes, I get a very short burst of noise and then an error message. When I connect the scanner to a mac laptop, it pauses with the "warming up the scanner" message and then scans the page. When I immediately re-connect the scanner to Ubuntu, simple-scan works just fine.

Is there a way to teach simple-scan to "try harder" when warming up the scanner?

Changing cables and USB ports does not help.

Sometimes pluging the scanner into the usb2 socket and leave it alone for a few minutes helps...

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: simple-scan 3.32.0-0ubuntu1
ProcVersionSignature: Ubuntu 5.0.0-16.17-generic 5.0.8
Uname: Linux 5.0.0-16-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue May 21 21:36:08 2019
MachineType: System76, Inc. Gazelle Pro
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-16-generic root=UUID=7d2767f3-1197-464e-97fa-45cecbaa7e66 ro quiet splash vt.handoff=1
SourcePackage: simple-scan
UpgradeStatus: Upgraded to disco on 2019-04-22 (29 days ago)
dmi.bios.date: 06/04/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.04SB.01RSY5
dmi.board.asset.tag: Tag 12345
dmi.board.name: Gazelle Pro
dmi.board.vendor: System76, Inc.
dmi.board.version: gazp9c
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Notebook
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.04SB.01RSY5:bd06/04/2015:svnSystem76,Inc.:pnGazellePro:pvrgazp9c:rvnSystem76,Inc.:rnGazellePro:rvrgazp9c:cvnNotebook:ct9:cvrN/A:
dmi.product.family: Not Applicable
dmi.product.name: Gazelle Pro
dmi.product.sku: Not Applicable
dmi.product.version: gazp9c
dmi.sys.vendor: System76, Inc.
modified.conffile..etc.default.apport: [modified]
mtime.conffile..etc.default.apport: 2015-10-05T22:04:33.987988

Revision history for this message
sds (sds-gnu) wrote :
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