[sane-devel] Getting a Canon TS9120 scanner to be recognized

Mon May 4 16:43:53 BST 2020

Dear Alexander, Thierry and sane-devel,

Apologies for the delay on the Canon TS9120.  I missed this email earlier
last week and I also  I tried to understand what is wrong with my
installation myself.

I agree with you that I perhaps installed twice and there is some paths
incorrect.  So out of the box, I installed sane-backends twice.  After the
first time, there was one compile error ( I think permissions or directory
was not correct), but I uninstalled using make uninstall.  Next time I ran
I installed the sanebackends in /opt/sane-backends-1.0.29-573-g3be9ac99a/.
I got no compile errors.  When I installed it, I downloaded the tar file,
and I did not clone directly from git and build the source from the git
repo.  I followed the instructions  ./configure  backends ="pixma",  make,
make install, and I got no errors. After that I wrote to the list.    There
may still be two installations, the native one with ubuntu and the backend
installation I described above.

Below you will see the three things I tried.  I tried to reconfigure the
backends to build escl (Thank you Thierry for writing this!) , I used which
scanimage, and I ran the debug command.

Thank you for working on this with me.

Anton Khabbaz

1. escl not building.
I realize later that airscan depends on escl, so I tried to get that to be
built.  It still did not work.  This is what I tried:
sudo ./configure BACKEND="escl"

Lot of output some headers not found but do not appear critical.  But this
one does:

checking for jpeg_skip_scanlines... yes
*** canon_pp backend requires libieee1284 library - disabling
*** dell1600n_net backend requires JPEG and TIFF library - disabling
*** escl backend requires AVAHI library - disabling
*** gphoto2 backend requires gphoto2 and JPEG libraries - disabling
*** hpsj5s backend requires libieee1284 library - disabling
*** mustek_pp backend requires libieee1284 or parport-directio libraries -
disabling
*** pint backend requires sys/scanio.h - disabling
*** v4l backend requires v4l libraries - disabling
*** pnm backend not manually selected - disabling
checking that generated files are newer than configure... done
configure: creating ./config.status

AVAHI library is not found

The synaptic manager says libavahi-common3 is installed version
0.7-3.1ubuntu1.2, which I assume holds the library.  I see that there is a
directory:
/usr/lib/avahi with file  avahi-daemon-check-dns.sh

if I run
which avahi-browse
/usr/bin/avahi-browse

2.  Scanimage location:

which scanimage
/usr/local/bin/scanimage

ldd `which scanimage`
linux-vdso.so.1 (0x00007ffddb9c6000)
libsane.so.1 => /usr/local/lib/libsane.so.1 (0x00007f48858c1000)
libpng16.so.16 => /usr/lib/x86_64-linux-gnu/libpng16.so.16
(0x00007f488568f000)
libjpeg.so.8 => /usr/lib/x86_64-linux-gnu/libjpeg.so.8 (0x00007f4885427000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f4885036000)
libusb-1.0.so.0 => /lib/x86_64-linux-gnu/libusb-1.0.so.0
(0x00007f4884e1e000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f4884c1a000)
libxml2.so.2 => /usr/lib/x86_64-linux-gnu/libxml2.so.2 (0x00007f4884859000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f488463c000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f488429e000)
/lib64/ld-linux-x86-64.so.2 (0x00007f4885ce5000)
libudev.so.1 => /lib/x86_64-linux-gnu/libudev.so.1 (0x00007f4884080000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f4883e61000)
libicuuc.so.60 => /usr/lib/x86_64-linux-gnu/libicuuc.so.60
(0x00007f4883aa9000)
liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f4883883000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f488367b000)
libicudata.so.60 => /usr/lib/x86_64-linux-gnu/libicudata.so.60
(0x00007f4881ad2000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6
(0x00007f4881749000)

3.  SANE DEBUG Here is the output:

SANE_DEBUG_DLL=255 scanimage -L
[11:39:15.757044] [sanei_debug] Setting debug level of dll to 255.
[11:39:15.757145] [dll] sane_init: SANE dll backend version 1.0.13 from
sane-backends 1.0.29-573-g3be9ac99a
[11:39:15.757172] [dll] sane_init/read_dlld: attempting to open directory
`./dll.d'
[11:39:15.757216] [dll] sane_init/read_dlld: attempting to open directory
`/usr/local/etc/sane.d/dll.d'
[11:39:15.757248] [dll] sane_init/read_dlld: using config directory
`/usr/local/etc/sane.d/dll.d'
[11:39:15.757288] [dll] sane_init/read_dlld: done.
[11:39:15.757324] [dll] sane_init/read_config: reading dll.conf
[11:39:15.757365] [dll] add_backend: adding backend `net'
[11:39:15.757388] [dll] add_backend: adding backend `abaton'
[11:39:15.757408] [dll] add_backend: adding backend `agfafocus'
[11:39:15.757427] [dll] add_backend: adding backend `apple'
[11:39:15.757447] [dll] add_backend: adding backend `artec'
[11:39:15.757466] [dll] add_backend: adding backend `artec_eplus48u'
[11:39:15.757486] [dll] add_backend: adding backend `as6e'
[11:39:15.757504] [dll] add_backend: adding backend `avision'
[11:39:15.757523] [dll] add_backend: adding backend `bh'
[11:39:15.757541] [dll] add_backend: adding backend `canon'
[11:39:15.757559] [dll] add_backend: adding backend `canon630u'
[11:39:15.757594] [dll] add_backend: adding backend `canon_dr'
[11:39:15.757614] [dll] add_backend: adding backend `canon_lide70'
[11:39:15.757634] [dll] add_backend: adding backend `cardscan'
[11:39:15.757653] [dll] add_backend: adding backend `coolscan'
[11:39:15.757672] [dll] add_backend: adding backend `coolscan3'
[11:39:15.757692] [dll] add_backend: adding backend `dell1600n_net'
[11:39:15.757712] [dll] add_backend: adding backend `dmc'
[11:39:15.757731] [dll] add_backend: adding backend `epjitsu'
[11:39:15.757749] [dll] add_backend: adding backend `epson2'
[11:39:15.757769] [dll] add_backend: adding backend `epsonds'
[11:39:15.757788] [dll] add_backend: adding backend `escl'
[11:39:15.757807] [dll] add_backend: adding backend `fujitsu'
[11:39:15.757826] [dll] add_backend: adding backend `genesys'
[11:39:15.757845] [dll] add_backend: adding backend `gt68xx'
[11:39:15.757865] [dll] add_backend: adding backend `hp'
[11:39:15.757884] [dll] add_backend: adding backend `hp3500'
[11:39:15.757902] [dll] add_backend: adding backend `hp3900'
[11:39:15.757921] [dll] add_backend: adding backend `hp4200'
[11:39:15.757940] [dll] add_backend: adding backend `hp5400'
[11:39:15.757959] [dll] add_backend: adding backend `hp5590'
[11:39:15.757978] [dll] add_backend: adding backend `hpljm1005'
[11:39:15.758001] [dll] add_backend: adding backend `hpsj5s'
[11:39:15.758021] [dll] add_backend: adding backend `hs2p'
[11:39:15.758040] [dll] add_backend: adding backend `ibm'
[11:39:15.758059] [dll] add_backend: adding backend `kodak'
[11:39:15.758078] [dll] add_backend: adding backend `kodakaio'
[11:39:15.758097] [dll] add_backend: adding backend `kvs1025'
[11:39:15.758117] [dll] add_backend: adding backend `kvs20xx'
[11:39:15.758137] [dll] add_backend: adding backend `kvs40xx'
[11:39:15.758156] [dll] add_backend: adding backend `leo'
[11:39:15.758175] [dll] add_backend: adding backend `lexmark'
[11:39:15.758194] [dll] add_backend: adding backend `ma1509'
[11:39:15.758213] [dll] add_backend: adding backend `magicolor'
[11:39:15.758232] [dll] add_backend: adding backend `matsushita'
[11:39:15.758251] [dll] add_backend: adding backend `microtek'
[11:39:15.758270] [dll] add_backend: adding backend `microtek2'
[11:39:15.758289] [dll] add_backend: adding backend `mustek'
[11:39:15.758309] [dll] add_backend: adding backend `mustek_usb'
[11:39:15.758328] [dll] add_backend: adding backend `mustek_usb2'
[11:39:15.758347] [dll] add_backend: adding backend `nec'
[11:39:15.758366] [dll] add_backend: adding backend `niash'
[11:39:15.758385] [dll] add_backend: adding backend `pie'
[11:39:15.758405] [dll] add_backend: adding backend `pieusb'
[11:39:15.758424] [dll] add_backend: adding backend `pint'
[11:39:15.758447] [dll] add_backend: adding backend `pixma'
[11:39:15.758468] [dll] add_backend: adding backend `plustek'
[11:39:15.758487] [dll] add_backend: adding backend `qcam'
[11:39:15.758506] [dll] add_backend: adding backend `ricoh'
[11:39:15.758525] [dll] add_backend: adding backend `ricoh2'
[11:39:15.758544] [dll] add_backend: adding backend `rts8891'
[11:39:15.758564] [dll] add_backend: adding backend `s9036'
[11:39:15.758583] [dll] add_backend: adding backend `sceptre'
[11:39:15.758602] [dll] add_backend: adding backend `sharp'
[11:39:15.758621] [dll] add_backend: adding backend `sm3600'
[11:39:15.758640] [dll] add_backend: adding backend `sm3840'
[11:39:15.758660] [dll] add_backend: adding backend `snapscan'
[11:39:15.758679] [dll] add_backend: adding backend `sp15c'
[11:39:15.758699] [dll] add_backend: adding backend `tamarack'
[11:39:15.758719] [dll] add_backend: adding backend `teco1'
[11:39:15.758738] [dll] add_backend: adding backend `teco2'
[11:39:15.758758] [dll] add_backend: adding backend `teco3'
[11:39:15.758778] [dll] add_backend: adding backend `u12'
[11:39:15.758797] [dll] add_backend: adding backend `umax'
[11:39:15.758817] [dll] add_backend: adding backend `umax1220u'
[11:39:15.758837] [dll] add_backend: adding backend `v4l'
[11:39:15.758856] [dll] add_backend: adding backend `xerox_mfp'
[11:39:15.758905] [dll] sane_get_devices
[11:39:15.758926] [dll] load: searching backend `xerox_mfp' in
`/usr/local/lib/sane'
[11:39:15.758945] [dll] load: trying to load
`/usr/local/lib/sane/libsane-xerox_mfp.so.1'
[11:39:15.758971] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-xerox_mfp.so.1' (No such file or directory)
[11:39:15.758990] [dll] load: couldn't find backend `xerox_mfp' (No such
file or directory)
[11:39:15.759009] [dll] load: searching backend `v4l' in
`/usr/local/lib/sane'
[11:39:15.759027] [dll] load: trying to load
`/usr/local/lib/sane/libsane-v4l.so.1'
[11:39:15.759049] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-v4l.so.1' (No such file or directory)
[11:39:15.759067] [dll] load: couldn't find backend `v4l' (No such file or
directory)
[11:39:15.759086] [dll] load: searching backend `umax1220u' in
`/usr/local/lib/sane'
[11:39:15.759104] [dll] load: trying to load
`/usr/local/lib/sane/libsane-umax1220u.so.1'
[11:39:15.759126] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-umax1220u.so.1' (No such file or directory)
[11:39:15.759144] [dll] load: couldn't find backend `umax1220u' (No such
file or directory)
[11:39:15.759162] [dll] load: searching backend `umax' in
`/usr/local/lib/sane'
[11:39:15.759180] [dll] load: trying to load
`/usr/local/lib/sane/libsane-umax.so.1'
[11:39:15.759202] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-umax.so.1' (No such file or directory)
[11:39:15.759220] [dll] load: couldn't find backend `umax' (No such file or
directory)
[11:39:15.759238] [dll] load: searching backend `u12' in
`/usr/local/lib/sane'
[11:39:15.759256] [dll] load: trying to load
`/usr/local/lib/sane/libsane-u12.so.1'
[11:39:15.759278] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-u12.so.1' (No such file or directory)
[11:39:15.759295] [dll] load: couldn't find backend `u12' (No such file or
directory)
[11:39:15.759314] [dll] load: searching backend `teco3' in
`/usr/local/lib/sane'
[11:39:15.759332] [dll] load: trying to load
`/usr/local/lib/sane/libsane-teco3.so.1'
[11:39:15.759354] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-teco3.so.1' (No such file or directory)
[11:39:15.759371] [dll] load: couldn't find backend `teco3' (No such file
or directory)
[11:39:15.759390] [dll] load: searching backend `teco2' in
`/usr/local/lib/sane'
[11:39:15.759408] [dll] load: trying to load
`/usr/local/lib/sane/libsane-teco2.so.1'
[11:39:15.759429] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-teco2.so.1' (No such file or directory)
[11:39:15.759447] [dll] load: couldn't find backend `teco2' (No such file
or directory)
[11:39:15.759466] [dll] load: searching backend `teco1' in
`/usr/local/lib/sane'
[11:39:15.759484] [dll] load: trying to load
`/usr/local/lib/sane/libsane-teco1.so.1'
[11:39:15.759506] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-teco1.so.1' (No such file or directory)
[11:39:15.759523] [dll] load: couldn't find backend `teco1' (No such file
or directory)
[11:39:15.759542] [dll] load: searching backend `tamarack' in
`/usr/local/lib/sane'
[11:39:15.759559] [dll] load: trying to load
`/usr/local/lib/sane/libsane-tamarack.so.1'
[11:39:15.759581] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-tamarack.so.1' (No such file or directory)
[11:39:15.759599] [dll] load: couldn't find backend `tamarack' (No such
file or directory)
[11:39:15.759617] [dll] load: searching backend `sp15c' in
`/usr/local/lib/sane'
[11:39:15.759635] [dll] load: trying to load
`/usr/local/lib/sane/libsane-sp15c.so.1'
[11:39:15.759657] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-sp15c.so.1' (No such file or directory)
[11:39:15.759675] [dll] load: couldn't find backend `sp15c' (No such file
or directory)
[11:39:15.759693] [dll] load: searching backend `snapscan' in
`/usr/local/lib/sane'
[11:39:15.759711] [dll] load: trying to load
`/usr/local/lib/sane/libsane-snapscan.so.1'
[11:39:15.759732] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-snapscan.so.1' (No such file or directory)
[11:39:15.759750] [dll] load: couldn't find backend `snapscan' (No such
file or directory)
[11:39:15.759769] [dll] load: searching backend `sm3840' in
`/usr/local/lib/sane'
[11:39:15.759787] [dll] load: trying to load
`/usr/local/lib/sane/libsane-sm3840.so.1'
[11:39:15.759808] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-sm3840.so.1' (No such file or directory)
[11:39:15.759826] [dll] load: couldn't find backend `sm3840' (No such file
or directory)
[11:39:15.759844] [dll] load: searching backend `sm3600' in
`/usr/local/lib/sane'
[11:39:15.759862] [dll] load: trying to load
`/usr/local/lib/sane/libsane-sm3600.so.1'
[11:39:15.759884] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-sm3600.so.1' (No such file or directory)
[11:39:15.759902] [dll] load: couldn't find backend `sm3600' (No such file
or directory)
[11:39:15.759920] [dll] load: searching backend `sharp' in
`/usr/local/lib/sane'
[11:39:15.759938] [dll] load: trying to load
`/usr/local/lib/sane/libsane-sharp.so.1'
[11:39:15.759959] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-sharp.so.1' (No such file or directory)
[11:39:15.759977] [dll] load: couldn't find backend `sharp' (No such file
or directory)
[11:39:15.759995] [dll] load: searching backend `sceptre' in
`/usr/local/lib/sane'
[11:39:15.760013] [dll] load: trying to load
`/usr/local/lib/sane/libsane-sceptre.so.1'
[11:39:15.760035] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-sceptre.so.1' (No such file or directory)
[11:39:15.760052] [dll] load: couldn't find backend `sceptre' (No such file
or directory)
[11:39:15.760071] [dll] load: searching backend `s9036' in
`/usr/local/lib/sane'
[11:39:15.760088] [dll] load: trying to load
`/usr/local/lib/sane/libsane-s9036.so.1'
[11:39:15.760110] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-s9036.so.1' (No such file or directory)
[11:39:15.760128] [dll] load: couldn't find backend `s9036' (No such file
or directory)
[11:39:15.760146] [dll] load: searching backend `rts8891' in
`/usr/local/lib/sane'
[11:39:15.760165] [dll] load: trying to load
`/usr/local/lib/sane/libsane-rts8891.so.1'
[11:39:15.760186] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-rts8891.so.1' (No such file or directory)
[11:39:15.760204] [dll] load: couldn't find backend `rts8891' (No such file
or directory)
[11:39:15.760223] [dll] load: searching backend `ricoh2' in
`/usr/local/lib/sane'
[11:39:15.760241] [dll] load: trying to load
`/usr/local/lib/sane/libsane-ricoh2.so.1'
[11:39:15.760263] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-ricoh2.so.1' (No such file or directory)
[11:39:15.760281] [dll] load: couldn't find backend `ricoh2' (No such file
or directory)
[11:39:15.760300] [dll] load: searching backend `ricoh' in
`/usr/local/lib/sane'
[11:39:15.760318] [dll] load: trying to load
`/usr/local/lib/sane/libsane-ricoh.so.1'
[11:39:15.760340] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-ricoh.so.1' (No such file or directory)
[11:39:15.760357] [dll] load: couldn't find backend `ricoh' (No such file
or directory)
[11:39:15.760376] [dll] load: searching backend `qcam' in
`/usr/local/lib/sane'
[11:39:15.760394] [dll] load: trying to load
`/usr/local/lib/sane/libsane-qcam.so.1'
[11:39:15.760416] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-qcam.so.1' (No such file or directory)
[11:39:15.760434] [dll] load: couldn't find backend `qcam' (No such file or
directory)
[11:39:15.760452] [dll] load: searching backend `plustek' in
`/usr/local/lib/sane'
[11:39:15.760470] [dll] load: trying to load
`/usr/local/lib/sane/libsane-plustek.so.1'
[11:39:15.760492] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-plustek.so.1' (No such file or directory)
[11:39:15.760510] [dll] load: couldn't find backend `plustek' (No such file
or directory)
[11:39:15.760529] [dll] load: searching backend `pixma' in
`/usr/local/lib/sane'
[11:39:15.760547] [dll] load: trying to load
`/usr/local/lib/sane/libsane-pixma.so.1'
[11:39:15.760573] [dll] load: dlopen()ing
`/usr/local/lib/sane/libsane-pixma.so.1'
[11:39:15.760789] [dll] init: initializing backend `pixma'
[11:39:15.766002] [dll] init: backend `pixma' is version 1.0.27
[11:39:15.773738] [bjnp] udp_command: ERROR - no data received (timeout =
2000)
[11:39:15.773782] [bjnp] bjnp_init_device_structure: Cannot read mac
address, skipping this scanner
[11:39:15.776578] [bjnp] bjnp_allocate_device: ERROR - Cannot resolve host:
fe80 port 8612
[11:39:16.297646] [dll] load: searching backend `pint' in
`/usr/local/lib/sane'
[11:39:16.297700] [dll] load: trying to load
`/usr/local/lib/sane/libsane-pint.so.1'
[11:39:16.297732] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-pint.so.1' (No such file or directory)
[11:39:16.297753] [dll] load: couldn't find backend `pint' (No such file or
directory)
[11:39:16.297774] [dll] load: searching backend `pieusb' in
`/usr/local/lib/sane'
[11:39:16.297794] [dll] load: trying to load
`/usr/local/lib/sane/libsane-pieusb.so.1'
[11:39:16.297816] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-pieusb.so.1' (No such file or directory)
[11:39:16.297836] [dll] load: couldn't find backend `pieusb' (No such file
or directory)
[11:39:16.297856] [dll] load: searching backend `pie' in
`/usr/local/lib/sane'
[11:39:16.297876] [dll] load: trying to load
`/usr/local/lib/sane/libsane-pie.so.1'
[11:39:16.297900] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-pie.so.1' (No such file or directory)
[11:39:16.297919] [dll] load: couldn't find backend `pie' (No such file or
directory)
[11:39:16.297938] [dll] load: searching backend `niash' in
`/usr/local/lib/sane'
[11:39:16.297959] [dll] load: trying to load
`/usr/local/lib/sane/libsane-niash.so.1'
[11:39:16.297982] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-niash.so.1' (No such file or directory)
[11:39:16.298001] [dll] load: couldn't find backend `niash' (No such file
or directory)
[11:39:16.298021] [dll] load: searching backend `nec' in
`/usr/local/lib/sane'
[11:39:16.298040] [dll] load: trying to load
`/usr/local/lib/sane/libsane-nec.so.1'
[11:39:16.298064] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-nec.so.1' (No such file or directory)
[11:39:16.298083] [dll] load: couldn't find backend `nec' (No such file or
directory)
[11:39:16.298102] [dll] load: searching backend `mustek_usb2' in
`/usr/local/lib/sane'
[11:39:16.298123] [dll] load: trying to load
`/usr/local/lib/sane/libsane-mustek_usb2.so.1'
[11:39:16.298143] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-mustek_usb2.so.1' (No such file or directory)
[11:39:16.298162] [dll] load: couldn't find backend `mustek_usb2' (No such
file or directory)
[11:39:16.298182] [dll] load: searching backend `mustek_usb' in
`/usr/local/lib/sane'
[11:39:16.298200] [dll] load: trying to load
`/usr/local/lib/sane/libsane-mustek_usb.so.1'
[11:39:16.298224] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-mustek_usb.so.1' (No such file or directory)
[11:39:16.298244] [dll] load: couldn't find backend `mustek_usb' (No such
file or directory)
[11:39:16.298262] [dll] load: searching backend `mustek' in
`/usr/local/lib/sane'
[11:39:16.298281] [dll] load: trying to load
`/usr/local/lib/sane/libsane-mustek.so.1'
[11:39:16.298304] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-mustek.so.1' (No such file or directory)
[11:39:16.298323] [dll] load: couldn't find backend `mustek' (No such file
or directory)
[11:39:16.298342] [dll] load: searching backend `microtek2' in
`/usr/local/lib/sane'
[11:39:16.298360] [dll] load: trying to load
`/usr/local/lib/sane/libsane-microtek2.so.1'
[11:39:16.298384] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-microtek2.so.1' (No such file or directory)
[11:39:16.298403] [dll] load: couldn't find backend `microtek2' (No such
file or directory)
[11:39:16.298423] [dll] load: searching backend `microtek' in
`/usr/local/lib/sane'
[11:39:16.298442] [dll] load: trying to load
`/usr/local/lib/sane/libsane-microtek.so.1'
[11:39:16.298465] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-microtek.so.1' (No such file or directory)
[11:39:16.298484] [dll] load: couldn't find backend `microtek' (No such
file or directory)
[11:39:16.298503] [dll] load: searching backend `matsushita' in
`/usr/local/lib/sane'
[11:39:16.298521] [dll] load: trying to load
`/usr/local/lib/sane/libsane-matsushita.so.1'
[11:39:16.298545] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-matsushita.so.1' (No such file or directory)
[11:39:16.298564] [dll] load: couldn't find backend `matsushita' (No such
file or directory)
[11:39:16.298584] [dll] load: searching backend `magicolor' in
`/usr/local/lib/sane'
[11:39:16.298602] [dll] load: trying to load
`/usr/local/lib/sane/libsane-magicolor.so.1'
[11:39:16.298625] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-magicolor.so.1' (No such file or directory)
[11:39:16.298644] [dll] load: couldn't find backend `magicolor' (No such
file or directory)
[11:39:16.298663] [dll] load: searching backend `ma1509' in
`/usr/local/lib/sane'
[11:39:16.298683] [dll] load: trying to load
`/usr/local/lib/sane/libsane-ma1509.so.1'
[11:39:16.298705] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-ma1509.so.1' (No such file or directory)
[11:39:16.298724] [dll] load: couldn't find backend `ma1509' (No such file
or directory)
[11:39:16.298743] [dll] load: searching backend `lexmark' in
`/usr/local/lib/sane'
[11:39:16.298762] [dll] load: trying to load
`/usr/local/lib/sane/libsane-lexmark.so.1'
[11:39:16.298785] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-lexmark.so.1' (No such file or directory)
[11:39:16.298804] [dll] load: couldn't find backend `lexmark' (No such file
or directory)
[11:39:16.298822] [dll] load: searching backend `leo' in
`/usr/local/lib/sane'
[11:39:16.298841] [dll] load: trying to load
`/usr/local/lib/sane/libsane-leo.so.1'
[11:39:16.298864] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-leo.so.1' (No such file or directory)
[11:39:16.298883] [dll] load: couldn't find backend `leo' (No such file or
directory)
[11:39:16.298903] [dll] load: searching backend `kvs40xx' in
`/usr/local/lib/sane'
[11:39:16.298921] [dll] load: trying to load
`/usr/local/lib/sane/libsane-kvs40xx.so.1'
[11:39:16.298944] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-kvs40xx.so.1' (No such file or directory)
[11:39:16.298962] [dll] load: couldn't find backend `kvs40xx' (No such file
or directory)
[11:39:16.298981] [dll] load: searching backend `kvs20xx' in
`/usr/local/lib/sane'
[11:39:16.299000] [dll] load: trying to load
`/usr/local/lib/sane/libsane-kvs20xx.so.1'
[11:39:16.299023] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-kvs20xx.so.1' (No such file or directory)
[11:39:16.299041] [dll] load: couldn't find backend `kvs20xx' (No such file
or directory)
[11:39:16.299060] [dll] load: searching backend `kvs1025' in
`/usr/local/lib/sane'
[11:39:16.299080] [dll] load: trying to load
`/usr/local/lib/sane/libsane-kvs1025.so.1'
[11:39:16.299102] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-kvs1025.so.1' (No such file or directory)
[11:39:16.299121] [dll] load: couldn't find backend `kvs1025' (No such file
or directory)
[11:39:16.299141] [dll] load: searching backend `kodakaio' in
`/usr/local/lib/sane'
[11:39:16.299159] [dll] load: trying to load
`/usr/local/lib/sane/libsane-kodakaio.so.1'
[11:39:16.299182] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-kodakaio.so.1' (No such file or directory)
[11:39:16.299201] [dll] load: couldn't find backend `kodakaio' (No such
file or directory)
[11:39:16.299220] [dll] load: searching backend `kodak' in
`/usr/local/lib/sane'
[11:39:16.299239] [dll] load: trying to load
`/usr/local/lib/sane/libsane-kodak.so.1'
[11:39:16.299261] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-kodak.so.1' (No such file or directory)
[11:39:16.299280] [dll] load: couldn't find backend `kodak' (No such file
or directory)
[11:39:16.299298] [dll] load: searching backend `ibm' in
`/usr/local/lib/sane'
[11:39:16.299317] [dll] load: trying to load
`/usr/local/lib/sane/libsane-ibm.so.1'
[11:39:16.299341] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-ibm.so.1' (No such file or directory)
[11:39:16.299360] [dll] load: couldn't find backend `ibm' (No such file or
directory)
[11:39:16.299378] [dll] load: searching backend `hs2p' in
`/usr/local/lib/sane'
[11:39:16.299397] [dll] load: trying to load
`/usr/local/lib/sane/libsane-hs2p.so.1'
[11:39:16.299420] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-hs2p.so.1' (No such file or directory)
[11:39:16.299439] [dll] load: couldn't find backend `hs2p' (No such file or
directory)
[11:39:16.299458] [dll] load: searching backend `hpsj5s' in
`/usr/local/lib/sane'
[11:39:16.299477] [dll] load: trying to load
`/usr/local/lib/sane/libsane-hpsj5s.so.1'
[11:39:16.299499] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-hpsj5s.so.1' (No such file or directory)
[11:39:16.299518] [dll] load: couldn't find backend `hpsj5s' (No such file
or directory)
[11:39:16.299537] [dll] load: searching backend `hpljm1005' in
`/usr/local/lib/sane'
[11:39:16.299556] [dll] load: trying to load
`/usr/local/lib/sane/libsane-hpljm1005.so.1'
[11:39:16.299580] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-hpljm1005.so.1' (No such file or directory)
[11:39:16.299598] [dll] load: couldn't find backend `hpljm1005' (No such
file or directory)
[11:39:16.299617] [dll] load: searching backend `hp5590' in
`/usr/local/lib/sane'
[11:39:16.299636] [dll] load: trying to load
`/usr/local/lib/sane/libsane-hp5590.so.1'
[11:39:16.299660] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-hp5590.so.1' (No such file or directory)
[11:39:16.299680] [dll] load: couldn't find backend `hp5590' (No such file
or directory)
[11:39:16.299698] [dll] load: searching backend `hp5400' in
`/usr/local/lib/sane'
[11:39:16.299717] [dll] load: trying to load
`/usr/local/lib/sane/libsane-hp5400.so.1'
[11:39:16.299740] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-hp5400.so.1' (No such file or directory)
[11:39:16.299760] [dll] load: couldn't find backend `hp5400' (No such file
or directory)
[11:39:16.299778] [dll] load: searching backend `hp4200' in
`/usr/local/lib/sane'
[11:39:16.299797] [dll] load: trying to load
`/usr/local/lib/sane/libsane-hp4200.so.1'
[11:39:16.299820] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-hp4200.so.1' (No such file or directory)
[11:39:16.299839] [dll] load: couldn't find backend `hp4200' (No such file
or directory)
[11:39:16.299858] [dll] load: searching backend `hp3900' in
`/usr/local/lib/sane'
[11:39:16.299877] [dll] load: trying to load
`/usr/local/lib/sane/libsane-hp3900.so.1'
[11:39:16.299899] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-hp3900.so.1' (No such file or directory)
[11:39:16.299917] [dll] load: couldn't find backend `hp3900' (No such file
or directory)
[11:39:16.299936] [dll] load: searching backend `hp3500' in
`/usr/local/lib/sane'
[11:39:16.299955] [dll] load: trying to load
`/usr/local/lib/sane/libsane-hp3500.so.1'
[11:39:16.299978] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-hp3500.so.1' (No such file or directory)
[11:39:16.299996] [dll] load: couldn't find backend `hp3500' (No such file
or directory)
[11:39:16.300016] [dll] load: searching backend `hp' in
`/usr/local/lib/sane'
[11:39:16.300034] [dll] load: trying to load
`/usr/local/lib/sane/libsane-hp.so.1'
[11:39:16.300057] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-hp.so.1' (No such file or directory)
[11:39:16.300076] [dll] load: couldn't find backend `hp' (No such file or
directory)
[11:39:16.300095] [dll] load: searching backend `gt68xx' in
`/usr/local/lib/sane'
[11:39:16.300114] [dll] load: trying to load
`/usr/local/lib/sane/libsane-gt68xx.so.1'
[11:39:16.300137] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-gt68xx.so.1' (No such file or directory)
[11:39:16.300155] [dll] load: couldn't find backend `gt68xx' (No such file
or directory)
[11:39:16.300174] [dll] load: searching backend `genesys' in
`/usr/local/lib/sane'
[11:39:16.300193] [dll] load: trying to load
`/usr/local/lib/sane/libsane-genesys.so.1'
[11:39:16.300216] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-genesys.so.1' (No such file or directory)
[11:39:16.300234] [dll] load: couldn't find backend `genesys' (No such file
or directory)
[11:39:16.300253] [dll] load: searching backend `fujitsu' in
`/usr/local/lib/sane'
[11:39:16.300271] [dll] load: trying to load
`/usr/local/lib/sane/libsane-fujitsu.so.1'
[11:39:16.300293] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-fujitsu.so.1' (No such file or directory)
[11:39:16.300312] [dll] load: couldn't find backend `fujitsu' (No such file
or directory)
[11:39:16.300331] [dll] load: searching backend `escl' in
`/usr/local/lib/sane'
[11:39:16.300349] [dll] load: trying to load
`/usr/local/lib/sane/libsane-escl.so.1'
[11:39:16.300371] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-escl.so.1' (No such file or directory)
[11:39:16.300390] [dll] load: couldn't find backend `escl' (No such file or
directory)
[11:39:16.300409] [dll] load: searching backend `epsonds' in
`/usr/local/lib/sane'
[11:39:16.300428] [dll] load: trying to load
`/usr/local/lib/sane/libsane-epsonds.so.1'
[11:39:16.300451] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-epsonds.so.1' (No such file or directory)
[11:39:16.300469] [dll] load: couldn't find backend `epsonds' (No such file
or directory)
[11:39:16.300489] [dll] load: searching backend `epson2' in
`/usr/local/lib/sane'
[11:39:16.300509] [dll] load: trying to load
`/usr/local/lib/sane/libsane-epson2.so.1'
[11:39:16.300532] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-epson2.so.1' (No such file or directory)
[11:39:16.300551] [dll] load: couldn't find backend `epson2' (No such file
or directory)
[11:39:16.300570] [dll] load: searching backend `epjitsu' in
`/usr/local/lib/sane'
[11:39:16.300588] [dll] load: trying to load
`/usr/local/lib/sane/libsane-epjitsu.so.1'
[11:39:16.300610] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-epjitsu.so.1' (No such file or directory)
[11:39:16.300630] [dll] load: couldn't find backend `epjitsu' (No such file
or directory)
[11:39:16.300649] [dll] load: searching backend `dmc' in
`/usr/local/lib/sane'
[11:39:16.300667] [dll] load: trying to load
`/usr/local/lib/sane/libsane-dmc.so.1'
[11:39:16.300690] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-dmc.so.1' (No such file or directory)
[11:39:16.300708] [dll] load: couldn't find backend `dmc' (No such file or
directory)
[11:39:16.300727] [dll] load: searching backend `dell1600n_net' in
`/usr/local/lib/sane'
[11:39:16.300746] [dll] load: trying to load
`/usr/local/lib/sane/libsane-dell1600n_net.so.1'
[11:39:16.300768] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-dell1600n_net.so.1' (No such file or directory)
[11:39:16.300786] [dll] load: couldn't find backend `dell1600n_net' (No
such file or directory)
[11:39:16.300805] [dll] load: searching backend `coolscan3' in
`/usr/local/lib/sane'
[11:39:16.300824] [dll] load: trying to load
`/usr/local/lib/sane/libsane-coolscan3.so.1'
[11:39:16.300847] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-coolscan3.so.1' (No such file or directory)
[11:39:16.300865] [dll] load: couldn't find backend `coolscan3' (No such
file or directory)
[11:39:16.300885] [dll] load: searching backend `coolscan' in
`/usr/local/lib/sane'
[11:39:16.300904] [dll] load: trying to load
`/usr/local/lib/sane/libsane-coolscan.so.1'
[11:39:16.300927] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-coolscan.so.1' (No such file or directory)
[11:39:16.300945] [dll] load: couldn't find backend `coolscan' (No such
file or directory)
[11:39:16.300964] [dll] load: searching backend `cardscan' in
`/usr/local/lib/sane'
[11:39:16.300982] [dll] load: trying to load
`/usr/local/lib/sane/libsane-cardscan.so.1'
[11:39:16.301005] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-cardscan.so.1' (No such file or directory)
[11:39:16.301024] [dll] load: couldn't find backend `cardscan' (No such
file or directory)
[11:39:16.301043] [dll] load: searching backend `canon_lide70' in
`/usr/local/lib/sane'
[11:39:16.301062] [dll] load: trying to load
`/usr/local/lib/sane/libsane-canon_lide70.so.1'
[11:39:16.301084] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-canon_lide70.so.1' (No such file or directory)
[11:39:16.301103] [dll] load: couldn't find backend `canon_lide70' (No such
file or directory)
[11:39:16.301121] [dll] load: searching backend `canon_dr' in
`/usr/local/lib/sane'
[11:39:16.301140] [dll] load: trying to load
`/usr/local/lib/sane/libsane-canon_dr.so.1'
[11:39:16.301162] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-canon_dr.so.1' (No such file or directory)
[11:39:16.301181] [dll] load: couldn't find backend `canon_dr' (No such
file or directory)
[11:39:16.301199] [dll] load: searching backend `canon630u' in
`/usr/local/lib/sane'
[11:39:16.301218] [dll] load: trying to load
`/usr/local/lib/sane/libsane-canon630u.so.1'
[11:39:16.301241] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-canon630u.so.1' (No such file or directory)
[11:39:16.301259] [dll] load: couldn't find backend `canon630u' (No such
file or directory)
[11:39:16.301278] [dll] load: searching backend `canon' in
`/usr/local/lib/sane'
[11:39:16.301297] [dll] load: trying to load
`/usr/local/lib/sane/libsane-canon.so.1'
[11:39:16.301320] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-canon.so.1' (No such file or directory)
[11:39:16.301338] [dll] load: couldn't find backend `canon' (No such file
or directory)
[11:39:16.301358] [dll] load: searching backend `bh' in
`/usr/local/lib/sane'
[11:39:16.301376] [dll] load: trying to load
`/usr/local/lib/sane/libsane-bh.so.1'
[11:39:16.301398] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-bh.so.1' (No such file or directory)
[11:39:16.301417] [dll] load: couldn't find backend `bh' (No such file or
directory)
[11:39:16.301436] [dll] load: searching backend `avision' in
`/usr/local/lib/sane'
[11:39:16.301454] [dll] load: trying to load
`/usr/local/lib/sane/libsane-avision.so.1'
[11:39:16.301477] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-avision.so.1' (No such file or directory)
[11:39:16.301495] [dll] load: couldn't find backend `avision' (No such file
or directory)
[11:39:16.301514] [dll] load: searching backend `as6e' in
`/usr/local/lib/sane'
[11:39:16.301534] [dll] load: trying to load
`/usr/local/lib/sane/libsane-as6e.so.1'
[11:39:16.301556] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-as6e.so.1' (No such file or directory)
[11:39:16.301593] [dll] load: couldn't find backend `as6e' (No such file or
directory)
[11:39:16.301613] [dll] load: searching backend `artec_eplus48u' in
`/usr/local/lib/sane'
[11:39:16.301634] [dll] load: trying to load
`/usr/local/lib/sane/libsane-artec_eplus48u.so.1'
[11:39:16.301654] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-artec_eplus48u.so.1' (No such file or
directory)
[11:39:16.301673] [dll] load: couldn't find backend `artec_eplus48u' (No
such file or directory)
[11:39:16.301695] [dll] load: searching backend `artec' in
`/usr/local/lib/sane'
[11:39:16.301714] [dll] load: trying to load
`/usr/local/lib/sane/libsane-artec.so.1'
[11:39:16.301751] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-artec.so.1' (No such file or directory)
[11:39:16.301763] [dll] load: couldn't find backend `artec' (No such file
or directory)
[11:39:16.301776] [dll] load: searching backend `apple' in
`/usr/local/lib/sane'
[11:39:16.301792] [dll] load: trying to load
`/usr/local/lib/sane/libsane-apple.so.1'
[11:39:16.301809] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-apple.so.1' (No such file or directory)
[11:39:16.301821] [dll] load: couldn't find backend `apple' (No such file
or directory)
[11:39:16.301833] [dll] load: searching backend `agfafocus' in
`/usr/local/lib/sane'
[11:39:16.301845] [dll] load: trying to load
`/usr/local/lib/sane/libsane-agfafocus.so.1'
[11:39:16.301866] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-agfafocus.so.1' (No such file or directory)
[11:39:16.301878] [dll] load: couldn't find backend `agfafocus' (No such
file or directory)
[11:39:16.301891] [dll] load: searching backend `abaton' in
`/usr/local/lib/sane'
[11:39:16.301903] [dll] load: trying to load
`/usr/local/lib/sane/libsane-abaton.so.1'
[11:39:16.301919] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-abaton.so.1' (No such file or directory)
[11:39:16.301935] [dll] load: couldn't find backend `abaton' (No such file
or directory)
[11:39:16.301948] [dll] load: searching backend `net' in
`/usr/local/lib/sane'
[11:39:16.301962] [dll] load: trying to load
`/usr/local/lib/sane/libsane-net.so.1'
[11:39:16.301980] [dll] load: couldn't open
`/usr/local/lib/sane/libsane-net.so.1' (No such file or directory)
[11:39:16.301993] [dll] load: couldn't find backend `net' (No such file or
directory)
[11:39:16.302010] [dll] sane_get_devices: found 0 devices

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).
[11:39:16.302060] [dll] sane_exit: exiting
[11:39:16.302077] [dll] sane_exit: calling backend `pixma's exit function
[11:39:16.302348] [dll] sane_exit: finished

On Thu, Apr 30, 2020 at 7:55 AM Alexander Pevzner <pzz at apevzner.com> wrote:

> Hi Anton,
>
> On 4/30/20 5:53 AM, Anton Khabbaz wrote:
> > It is very plausible that I installed things incorrectly.  When I
> > installed the backends I used
> > ./configure Backends="pixma" before installing.  I did not install all
> > of them as perhaps I should have.
> > I will figure out how to reinstall/ or update the installation and try
> > it again.
>
> I think, now you have two installations:
> 1) installation that you've build by yourself, this is installed in
> /usr/local and build without sane-escl. Probably because some required
> libraries were missed at the build time
> 2) installation from your disro, which doesn't include sane-escl,
> because it is old version of sane-backands
>
> The sane-airscan package that you've have installed from my binaries
> automatically integrated itself with sane-backends from your distro, but
> applications use sane backends that you've built by yourself, so
> sane-airscan is not activated.
>
> To verify this idea, please show us output of the following two commands:
>
> which scanimage
> ldd `which scanimage`
>
> And also what I've asked you in my previous message:
>
> SANE_DEBUG_DLL=255 scanimage -L
>
> --
>
>         Wishes, Alexander Pevzner (pzz at apevzner.com)
>
>
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