Here are my latest few posts from the Ubuntu Forums:

5 Nov 12
I have a Toshiba Satellite A650 laptop (Intel I5). All worked fine in Natty, 
11.04. Last month (Oct '12) I upgraded to Oneiric 11.10 and after some 
diddling, got everything going. I've been doing updates weekly.
Last week, I tried to use the Scanner; it just stopped being seen after 
upgrading to Oneiric.
The Epson Perfection 4180 USB Photo Scanner stopped being seen as connected.

I normally use Simple Scan. I tried XSANE, same problem. lsusb does see
the scanner:

Bus 003 Device 004:
ID 04b8:0118 Seiko Epson Corp. Perfection 4180 (GF-F600)

I rebooted multiple times. No change. I tried uninstalling and
reinstalling Simple Scan. No change.

The laptop is dual boot, and Windows 7 operates the scanner through the
same USB hub etc.

PS I tried unplugging the USB and replugging. No change. I also checked the 
kernel: it's
3.0.0-26-generic-pae.

Someone suggested the drivers and programs at the Epson and Avasys
sites. I downloaded them and...

5 Nov 12
 Re: USB scanner not working with Ubuntu 11.10
I tried SANE before, and the output said to use XSANE instead, which I did.

I will try reinstalling as you so carefully outlined. But I'm wondering
why it worked before and not now.

I'll let you know how it goes.

Thanks!

OK... It worked at first. When I did the "tar... "command a whole bunch
of iscan things happened. When I got to "cd iscan_2.10.0-1" There is no
such directory, at least not visible from Downloads. I'll look further.

OK... there IS a folder called iscan_2.10.0 without the hyphen and 1 at
the end...

OK... Now I'm at a standstill. I ran the ./configure command. It ended
with this:

"checking for GTK... no
checking for GTK... configure: error: Package requirements (gtk+) were not met:

No package 'gtk+' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables GTK_CFLAGS
and GTK_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details."

I assume this has something to do with Gnome, which is what I run under
(classic, no animation)

I tried "make" anyway, and got this:

"daniel@daniel-toshiba:~/Downloads/iscan-2.10.0$ make
make: *** No targets specified and no makefile found. Stop."


Also 5 Nov 12

I installed the Dev pkg per the post you linked:

sudo apt-get install libgtk-3-dev

I then looked for libgtk using Ubuntu Software center & it said I
already had it:

"Installed - GTK+ is a multi-platform toolkit for creating graphical user 
interfaces. Offering a complete set of widgets, GTK+ is suitable for projects 
ranging from small one-off tools to complete application suites.
This package contains the shared libraries.
Version libgtk-3-0 3.2.0-0ubuntu6"

I ran ./config and the same GTK+ error occurred as before.

I did a Google search and saw some admonishments as to using non-
standard packages, but so far, not what to do if you have the package
and something can't find it. Perhaps a clue is in the config files
mentioned in the error message, but I don't know where those are.

I searched for an hour or so, but seem to have hit another dead end.

I'd again greatly appreciate your help.

- - - - -

A few hours later:

I found and tried this suggestion:

I used

locate pkgconfig

to find that path. Well, there were two, but this one looked more like
the example in the post I saw, so I entered:

PKG_CONFIG_PATH=/usr/lib/pkgconfig
export PKG_CONFIG_PATH

But that didn't change anything. I don't know why it's looking for GTK+
instead of GTK3.

Later... I found a folder at /usr/include/gtk-3.0. there were a bunch of 
similarly named GTK folders
which seem linked to GUIs, Python, etc.

Do I need to point something to that?

There was also a folder named GTK-2.0 and similarly named ones, as
above.

Further on 5 Nov 12
his AM I tried a few more things:

$ sane-find-scanner

# sane-find-scanner will now attempt to detect your scanner. If the
# result is different from what you expected, first make sure your
# scanner is powered up and properly connected to your computer.

# No SCSI scanners found. If you expected something different, make sure that
# you have loaded a kernel SCSI driver for your SCSI adapter.

found USB scanner (vendor=0x04b8, product=0x0118 ) at libusb:003:007
found USB scanner (vendor=0x8086, product=0x0186) at libusb:001:003
# Your USB scanner was (probably) detected. It may or may not be supported by
# SANE. Try scanimage -L and read the backend's manpage.

I'm not sure why it found two scanners I only have one. It matches the
ID of the first found device, ending in 0118. The scanner was powered on
but my other USB devices were powered off (e.g. printer).

Then I tried:

$ sudo scanimage -L
[sudo] password for daniel:

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).

Some of these posts go back to 2005. I guess this is a long-standing
problem.

6 Nov 12
Well... I cut & pasted your Alien command and checked; it was the same as the 
rpm file name I downloaded. But... it didn't work.

I got a whole bunch of error messages like this:

error: db5 error(-30969) from dbenv->open: DB_VERSION_MISMATCH: Database 
environment version mismatch
error: cannot open Packages index using db5 - (-30969)
error: cannot open Packages database in /home/daniel/.rpmdb
Warning: Skipping conversion of scripts in package iscan: postinst postrm 
preinst prerm
Warning: Use the --scripts parameter to include the scripts.
mkdir: cannot create directory `iscan-2.10.0': File exists
unable to mkdir iscan-2.10.0: at /usr/share/perl5/Alien/Package.pm line 257.

Should I try again, using the "--scripts" parameter? I'm nervous to try
it w/o an OK from someone who knows what's what.

7 Nov 12
 Re: USB scanner not working with Ubuntu 11.10
I ran XSane before posting this. Got the same error: No scanner detected.

That's why I did the lsusb. If it hadn't shown there<, I probably
would've given up.

Not sure about Epkowa or what a back-end is.... drivers?

I think if we got Alien to work it'd solve the problem, my friend.
But then, what do I know? I'm the one who's asking for help?

I think you can see why I'm so frustrated with Ubuntu right now. I'm not
the only one who regrets "upgrading" from 11.04, which worked just fine
in all respects. I hear (read) even more complaints about 12.04.

I'll take a deep breath and go read the link you provided.

OK, this is later. It wasn't much help. Seemed to apply only if one uses iScan, 
which wasn't necessary for
me before. SimpleScan worked fine.

9 Nov 12
Another dead-end that had sounded promising. A video on YouTube covered this 
problem, but was for
a previous version of Ubuntu. The drivers were .deb files and thus easily 
installed. I have problems with the rpm files
though I can unpack them, I don't know what to do after that.

Might buy a Mac today. Simple stuff can get very hard in Linux if you're
not a whiz at the OS.

Helpers seem to give half-answers and then up easily.

It's not fun any more   :(

But... thanks for your attention!

:)

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to simple-scan in Ubuntu.
https://bugs.launchpad.net/bugs/1073796

Title:
  I've "upgraded" to 11.1. All of a sudden Simple Scan won't see that
  any scanner is attached.

Status in “simple-scan” package in Ubuntu:
  Incomplete

Bug description:
  I've tried rebooting and all the simple stuff.  Scanner is USB and all
  other USB devices work fine.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: simple-scan 3.2.1-0ubuntu1~oneiric1
  ProcVersionSignature: Ubuntu 3.0.0-26.43-generic-pae 3.0.43
  Uname: Linux 3.0.0-26-generic-pae i686
  ApportVersion: 1.23-0ubuntu4
  Architecture: i386
  Date: Wed Oct 31 20:20:51 2012
  DriverPackageVersions:
   libsane 1.0.22-2ubuntu2
   libsane-extras N/A
   hplip 3.11.7-1ubuntu3.1
   hpoj N/A
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
  MachineType: TOSHIBA Satellite A665
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-26-generic-pae 
root=UUID=82a5b25a-b719-49e7-866c-7ccfb00d294f ro quiet splash vt.handoff=7
  SimpleScanLog:
   
  SourcePackage: simple-scan
  UdevDb: Error: [Errno 2] No such file or directory
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/13/2011
  dmi.bios.vendor: TOSHIBA
  dmi.bios.version: 2.10
  dmi.board.asset.tag: NULL
  dmi.board.name: PHQAA
  dmi.board.vendor: TOSHIBA
  dmi.board.version: 1.00
  dmi.chassis.asset.tag: *
  dmi.chassis.type: 10
  dmi.chassis.vendor: TOSHIBA
  dmi.chassis.version: N/A
  dmi.modalias: 
dmi:bvnTOSHIBA:bvr2.10:bd07/13/2011:svnTOSHIBA:pnSatelliteA665:pvrPSAW6U-002023:rvnTOSHIBA:rnPHQAA:rvr1.00:cvnTOSHIBA:ct10:cvrN/A:
  dmi.product.name: Satellite A665
  dmi.product.version: PSAW6U-002023
  dmi.sys.vendor: TOSHIBA

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/simple-scan/+bug/1073796/+subscriptions

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