Ubuntu – Issue related with unmet dependencies after installing new libraries

dependenciespackage-managementscanner

After upgrading from Ubuntu 15.04 to 15.10, I had an issue with my scanner on Canon PIXMA MX870 that was not recognized by Simple Scan or Xsane. I've found my answer on how to make it work:

Original issue

The proposed solution suggested to install experimental libraries on my Ubuntu 15.10. It really resolved my issue and I could see my scanner, but unfortunately TeamViewer 11 required libjpeg62 (the original library). After I reinstalled TeamViewer, it "fixed" some of the libraries it needed, but then my Simple Scan and Xsane apps are gone.

Output from my "apt-get autoremove;apt-get autoclean":

The following packages will be REMOVED:
argyll argyll-ref gnome-control-center-data
gnome-settings-daemon libcolord-gtk1 libgoa-backend-1.0-1
xsane-common

Debian Expirimental – Libs

libjpeg62-turbo
Version: 1:1.4.80-115-gfb907b2-1
libsane-common
Version: 1.0.26~git20151121-1
libsane
Version: 1.0.26~git20151121-1

When I try to install Simple Scan, the following error appears:

simple-scan: Depends: zlib1g (>= 1:1.1.4) but 1:1.2.8.dfsg-2ubuntu4 is
to be installed

Similar message appears when trying to install Xsane:

xsane: Depends: xsane-common (= 0.998-6ubuntu1) but 0.998-6ubuntu1 is
to be installed

   Depends: libc6 (>= 2.14) but 2.21-0ubuntu4.1 is to be installed
   Depends: libgimp2.0 (>= 2.4.0) but 2.8.14-1ubuntu2 is to be installed
   Depends: libglib2.0-0 (>= 2.12.0) but 2.46.1-1 is to be installed
   Depends: libgtk2.0-0 (>= 2.14.0) but 2.24.28-1ubuntu1.1 is to be installed
   Depends: libjpeg8 (>= 8c) but 8c-2ubuntu8 is to be installed
   Depends: libpng12-0 (>= 1.2.13-4) but 1.2.51-0ubuntu3.15.10.2 is to be installed
   Depends: libsane (>= 1.0.11-3) but 1.0.25+git20150528-1ubuntu2 is to be installed
   Depends: libtiff5 (>= 4.0.3) but 4.0.3-12.3ubuntu2 is to be installed
   Depends: zlib1g (>= 1:1.1.4) but 1:1.2.8.dfsg-2ubuntu4 is to be installed

QUESTIONS:

Is it possible to make my TeamViewer work as well as Simple Scan and
Xsane?
How could I fix the issue with my libraries?

Best Answer

I believe I found a way in order to answer my own questions:

1) It appears I can't have both - experimental and buggy stable version of those libraries. So I had to choose. I can live without Simple Scan and Xsane, since scangearmp still works with my scanner! The solution is to get rid of the experimental libs.

2) Again, the solution is to get rid of the experimental libs, by following:

# #Re-install the downloaded packages as root

# dpkg -i libjpeg62-turbo_1.4.80-115-gfb907b2-1_amd64.deb
# dpkg -i libsane-common_1.0.26~git20151121-1_all.deb
# dpkg -i libsane_1.0.26~git20151121-1_amd64.deb

# #Now remove the experimental libraries completely

# dpkg -P libsane
# dpkg -P libsane-common
# dpkg -P libjpeg62-turbo

Start "Ubuntu Software Center" and let Ubuntu do the repair of missing libraries, by clicking Ok. Alternatively, you may install and uninstall Simple Scan, or Xsane and we're done - all libraries are now fixed, and everything's back to normal!

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First run

 sudo apt-get autoremove <package name>

If it doesn't work then

 sudo apt-get autoclean

remove sources.list file.and create new sources.list...

sudo rm /etc/apt/sources.list

Then, type in

sudo software-properties-gtk

This will open software-properties-gtk and a newsources.list will be created automatically.

Then change the server to US or to any other server of your choice. You must enable repositories from the new dialog in order to create new sources.list.

Tick all the boxes then click on Revert then click close.

Need to restore default repositories

 sudo apt-get update && sudo apt-get dist-upgrade -y

(it is good practice to backup this file before installing to recover if such things happen)

Now install anything!

Ubuntu – Samsung M2070W scanner no longer working in 17.10

I just got the scanner from Samsung M2070FW running with Ubuntu 18.04. Just follow these steps:

Get UnifiedLinuxDriver-1.00.37.tar.gz from this site and unpack it, open a terminal and do:
```
cd /UnifiedLinuxDriver-1.00.37/uld
sudo ./install.sh
```
After successful installation of the Samsung Driver for the printer and the scanner, you can installer the printer first via Cups. For the scanner however, there should be a new directory with a single file in it:
```
/opt/smfp-common/scanner/lib/libsane-smfp.so.1.0.1
```
If you use a 64-bit system (which you probably do), use the terminal again to change to the scanner driver directory. Here you put a symbolic link to the file in /opt:
```
cd /usr/lib/x86_64-linux-gnu/sane
sudo ln -s /opt/smfp-common/scanner/lib/libsane-smfp.so.1.0.1 /usr/lib/x86_64-linux-gnu/sane/libsane-smfp.so.1
```
But things still didn't work, so I had to install a USB library:
```
sudo apt install libusb-0.1-4
```
After that, I made sure that I was in the same network with my printer (via ping) and did scanimage -L:
```
$ scanimage -L
device `smfp:net;192.168.1.20' is a Samsung M2070 Series on 192.168.1.20 Scanner
```

If pinging your scanner works but the command finds nothing, you can start to debug things:

cd
export SANE_DEBUG_DLL=255 && scanimage -L &> debug.txt
grep -n2 "libsane-smf" debug.txt

If everything works correctly, you would get the following output:

....
84-[dll] sane_get_devices
85-[dll] load: searching backend `smfp' in `/usr/lib/x86_64-linux-gnu/sane'
86:[dll] load: trying to load `/usr/lib/x86_64-linux-gnu/sane/libsane-smfp.so.1'
87:[dll] load: dlopen()ing `/usr/lib/x86_64-linux-gnu/sane/libsane-smfp.so.1'
88-[dll] init: initializing backend `smfp'
89-[dll] init: backend `smfp' is version 1.0.1
....

If not, you might find a hint as to what file is missing or not found.

Best Answer

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