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0BADC0DE

Member

From: Regnum Utriusque Siciliae

Registered: 2018-02-21

Posts: 344

[WORKAROUND] Some issues with SANE (scanner): it used to work

Hi all.
My system has an USB scanner installed. It's actually a MFP by Samsung.
The printer part works like a charm, as it used to do in the past months.
The scanner has stopped working.

The tool lsusb shows it:

Bus 003 Device 005: ID 04e8:3434 Samsung Electronics Co., Ltd

as well as sane-find-scanner

found USB scanner (vendor=0x04e8 [Samsung], product=0x3434 [SCX-4623 Series]) at libusb:003:005

But the scanimage -L cannot find any scanner, neither as a normal user nor as root:

[support@Feynman /usr/share/doc/sane-backends] sudo scanimage -v -L

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).

Of course the UI (skanlite) cannot do any scanning.
Useless to say the support is documented to be good:

SCX-4623    USB    0x04e8/0x3434    Good         xerox_mfp (1.0-13)    sane-xerox_mfp

and the related libraries are in place under /usr/lib/sane.
A few weeks ago I succesfuly scanned some documents.
The journalctl seems not to show anything useful, though.
Any hint on how to troubleshoot this issue?

TALIA!

UPDATE. There's a workaround here.

Last edited by 0BADC0DE (2018-04-06 14:27:28)

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0BADC0DE

Member

From: Regnum Utriusque Siciliae

Registered: 2018-02-21

Posts: 344

Re: [WORKAROUND] Some issues with SANE (scanner): it used to work

Is there any way to debug the back-end?

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jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,426

Website

Re: [WORKAROUND] Some issues with SANE (scanner): it used to work

Not an Installation issue, moving to NC...

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0BADC0DE

Member

From: Regnum Utriusque Siciliae

Registered: 2018-02-21

Posts: 344

Re: [WORKAROUND] Some issues with SANE (scanner): it used to work

Not an Installation issue, moving to NC...

Maybe you're right, but I suspect is related to the installation of some package update: it used to work when I first installed it.
Thanks anyway.

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jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,426

Website

Re: [WORKAROUND] Some issues with SANE (scanner): it used to work

If you bothered to read the board description, you would see that it is for the installation of Arch Linux systems, not individual packages.

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seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,849

Re: [WORKAROUND] Some issues with SANE (scanner): it used to work

Do you maybe use one of the AUR packages to drive the thing?

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0BADC0DE

Member

From: Regnum Utriusque Siciliae

Registered: 2018-02-21

Posts: 344

Re: [WORKAROUND] Some issues with SANE (scanner): it used to work

Do you maybe use one of the AUR packages to drive the thing?

Nope.
I just installed extra/sane, extra/sane-frontends  and community/skanlite (I am on Plasma).
The support driver is xerox_mfp which is in place as it's installed by the second package AFAIK.
Again, it used to work some weeks ago ...

Last edited by 0BADC0DE (2018-04-06 09:27:35)

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R00KIE

Forum Fellow

From: Between a computer and a chair

Registered: 2008-09-14

Posts: 4,734

Re: [WORKAROUND] Some issues with SANE (scanner): it used to work

Maybe you need to uncomment something in /etc/sane.d/dll.conf or tweak the settings in one of the files in  /etc/sane.d/.

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0BADC0DE

Member

From: Regnum Utriusque Siciliae

Registered: 2018-02-21

Posts: 344

Re: [WORKAROUND] Some issues with SANE (scanner): it used to work

Maybe you need to uncomment something in /etc/sane.d/dll.conf or tweak the settings in one of the files in  /etc/sane.d/.

Already checked: they're OK and in their original form.

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Maybe Computers Will Never Become As Intelligent
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progandy

Member

Registered: 2012-05-17

Posts: 5,322

Re: [WORKAROUND] Some issues with SANE (scanner): it used to work

There is something in the wiki which might be relevant:
https://wiki.archlinux.org/index.php/SA … ms#Samsung

Did you install brscan2? Then remove it, since the samsung drivers might conflict with those for brother devices.
https://blog.mcdope.org/2017/01/07/sams … ter-linux/

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0BADC0DE

Member

From: Regnum Utriusque Siciliae

Registered: 2018-02-21

Posts: 344

Re: [WORKAROUND] Some issues with SANE (scanner): it used to work

Solved! Or, better, I worked it around.

I had to install samsung-unified-driver from the AUR.

While this solves my very problem, it doesn't explain why the default sane installation stopped working sometime earlier than 2 weeks ago!
It used to work with default sane binaries and configurations!!!

Last edited by 0BADC0DE (2018-04-06 14:28:15)

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Maybe Computers Will Never Become As Intelligent
As Humans. Surely They Won't Ever Become So Stupid.