I am moving over from Mageia9 to Fedora and XSane fails to see my Epson V370 Scanner. scanimage -L fails to find a scanner but sane-find-scanner shows
found possible USB scanner (vendor=0x04b8 [EPSON], product=0x014a [EPSON Perfection V37/V370]) at libusb:002:006
Any help would be appreciated.
Did you check the Epson website to see what it says on how to use that scanner in Linux? I use an Epson scanner, but canāt remember exactly what I did to get it to work. I do use a program called Epson Scan (2?), so you might want to see if that program works for you.
sane ships with two different epson modules (ādllsā). Only one of epson and epson2 can be active, see /etc/sane.d/dll.conf. Itās worth trying out the other one, i.e. change which one has # in front.
(OK, thereās a third one, epsonds, but thatās extra in any case.)
I changed /etc/sane.d/dll.conf epson to epson2 which made no difference and I am unable find the core dump and I am not sure what to do next. Image Scan for Linux and Skanpage both work ok.
phil@fedora:~$ epsonscan2
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
terminate called after throwing an instance of āstd::logic_errorā
what(): basic_string::_S_construct null not valid
Aborted (core dumped)
/etc/sane.d/dll.conf
dmc
epjitsu
#epson
epson2
epsonds
escl
Epsonscan2.log
[2025/07/19 09:42:07.047][epsonscan2 ][DbgLog.cpp ; 568][P7CDbgLog ][00001237][-ERROR-] LoadModule Path:[/usr/bin/epsonscan2] Ver:[1.0.0]
[2025/07/19 09:42:07.794][epsonscan2 ][UsbFinder.cpp ; 48][Start
I have now found the core dump -
PID: 4771 (epsonscan2)
UID: 1000 (phil)
GID: 1000 (phil)
Signal: 6 (ABRT)
Timestamp: Sun 2025-08-10 14:06:44 BST (17min ago)
Command Line: epsonscan2
Executable: /usr/bin/epsonscan2
Control Group: /user.slice/user-1000.slice/user@1000.service/app.slice/app-org.kde.konsole@142fd322b9aa4413855c88d200c224d8.service
Unit: user@1000.service
User Unit: app-org.kde.konsole@142fd322b9aa4413855c88d200c224d8.service
Slice: user-1000.slice
Owner UID: 1000 (phil)
Boot ID: cb90613e62b447a89c5304dfd48b056e
Machine ID: 1907d850afed42d7bbdb09f5c467181b
Hostname: fedora
Storage: /var/lib/systemd/coredump/core.epsonscan2.1000.cb90613e62b447a89c5304dfd48b056e.4771.1754831204000000.zst (missing)
Message: Process 4771 (epsonscan2) of user 1000 dumped core.
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Module libKF5KIOWidgets.so.5 from rpm kf5-kio-5.116.0-4.fc42.x86_64
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Module libQt5DBus.so.5 from rpm qt5-qtbase-5.15.17-1.fc42.x86_64
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Module libwayland-cursor.so.0 from rpm wayland-1.24.0-1.fc42.x86_64
Module libQt5WaylandClient.so.5 from rpm qt5-qtwayland-5.15.17-1.fc42.x86_64
Module libqwayland-generic.so from rpm qt5-qtwayland-5.15.17-1.fc42.x86_64
Module libbrotlicommon.so.1 from rpm brotli-1.1.0-6.fc42.x86_64
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Module libbrotlidec.so.1 from rpm brotli-1.1.0-6.fc42.x86_64
Module libbz2.so.1 from rpm bzip2-1.0.8-20.fc42.x86_64
Module libxcb.so.1 from rpm libxcb-1.17.0-5.fc42.x86_64
Module libpcre2-8.so.0 from rpm pcre2-10.45-1.fc42.x86_64
Module libicudata.so.76 from rpm icu-76.1-4.fc42.x86_64
Module libcap.so.2 from rpm libcap-2.73-2.fc42.x86_64
Module libgraphite2.so.3 from rpm graphite2-1.3.14-18.fc42.x86_64
Module libfreetype.so.6 from rpm freetype-2.13.3-2.fc42.x86_64
Module libGLdispatch.so.0 from rpm libglvnd-1.7.0-7.fc42.x86_64
Module libXext.so.6 from rpm libXext-1.3.6-3.fc42.x86_64
Module libX11.so.6 from rpm libX11-1.8.12-1.fc42.x86_64
Module libGLX.so.0 from rpm libglvnd-1.7.0-7.fc42.x86_64
Module libglib-2.0.so.0 from rpm glib2-2.84.3-1.fc42.x86_64
Module libzstd.so.1 from rpm zstd-1.5.7-1.fc42.x86_64
Module libpcre2-16.so.0 from rpm pcre2-10.45-1.fc42.x86_64
Module libicuuc.so.76 from rpm icu-76.1-4.fc42.x86_64
Module libicui18n.so.76 from rpm icu-76.1-4.fc42.x86_64
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Module libsystemd.so.0 from rpm systemd-257.7-1.fc42.x86_64
Module libharfbuzz.so.0 from rpm harfbuzz-10.4.0-1.fc42.x86_64
Module libz.so.1 from rpm zlib-ng-2.2.4-3.fc42.x86_64
Module libpng16.so.16 from rpm libpng-1.6.44-2.fc42.x86_64
Module libGL.so.1 from rpm libglvnd-1.7.0-7.fc42.x86_64
Module libQt5Core.so.5 from rpm qt5-qtbase-5.15.17-1.fc42.x86_64
Module libQt5Gui.so.5 from rpm qt5-qtbase-5.15.17-1.fc42.x86_64
Module libQt5Widgets.so.5 from rpm qt5-qtbase-5.15.17-1.fc42.x86_64
Stack trace of thread 4771:
#0 0x00007f6d8048209c __pthread_kill_implementation (libc.so.6 + 0x7309c)
#1 0x00007f6d80428a7e raise (libc.so.6 + 0x19a7e)
#2 0x00007f6d804106d0 abort (libc.so.6 + 0x16d0)
#3 0x00007f6d806091b6 _ZN9__gnu_cxx27__verbose_terminate_handlerEv.cold (libstdc++.so.6 + 0x91b6)
#4 0x00007f6d8061eadc _ZN10__cxxabiv111__terminateEPFvvE (libstdc++.so.6 + 0x1eadc)
#5 0x00007f6d80608d3c _ZSt9terminatev (libstdc++.so.6 + 0x8d3c)
#6 0x00007f6d8061ed88 __cxa_throw (libstdc++.so.6 + 0x1ed88)
#7 0x00007f6d8060c346 _ZSt19__throw_logic_errorPKc (libstdc++.so.6 + 0xc346)
#8 0x00007f6d80668e0d _ZNSs12_S_constructIPKcEEPcT_S3_RKSaIcESt20forward_iterator_tag (libstdc++.so.6 + 0x68e0d)
#9 0x00007f6d8066923b _ZNSsC2EPKcRKSaIcE (libstdc++.so.6 + 0x6923b)
#10 0x00000000004d8c71 _ZN24InitDeviceSelectCombobox17CreateDisplayNameEPcPKcii (/usr/bin/epsonscan2 + 0xd8c71)
#11 0x00000000004d9072 _ZN24InitDeviceSelectCombobox10add_deviceEv (/usr/bin/epsonscan2 + 0xd9072)
#12 0x00000000004d948d _ZN24InitDeviceSelectCombobox18update_device_listEv (/usr/bin/epsonscan2 + 0xd948d)
#13 0x00000000004d7d71 _ZN18DeviceSelectDialog8updateUIEv (/usr/bin/epsonscan2 + 0xd7d71)
#14 0x00000000004d7e19 _ZN18DeviceSelectDialog10InitializeEP10Supervisor (/usr/bin/epsonscan2 + 0xd7e19)
#15 0x000000000047593e _ZN10MainWindow12SelectDeviceEv (/usr/bin/epsonscan2 + 0x7593e)
#16 0x0000000000482928 _ZN10MainWindowC1ESsP7QWidget (/usr/bin/epsonscan2 + 0x82928)
#17 0x0000000000472c93 main (/usr/bin/epsonscan2 + 0x72c93)
#18 0x00007f6d80412575 __libc_start_call_main (libc.so.6 + 0x3575)
#19 0x00007f6d80412628 __libc_start_main@@GLIBC_2.34 (libc.so.6 + 0x3628)
#20 0x00000000004751db _start (/usr/bin/epsonscan2 + 0x751db)
Stack trace of thread 4774:
#0 0x00007f6d80488642 __syscall_cancel_arch (libc.so.6 + 0x79642)
#1 0x00007f6d8047c95a __internal_syscall_cancel (libc.so.6 + 0x6d95a)
#2 0x00007f6d8047c9a4 __syscall_cancel (libc.so.6 + 0x6d9a4)
#3 0x00007f6d804f5c0e __poll (libc.so.6 + 0xe6c0e)
#4 0x00007f6d7f6b4b99 _ZN15QtWaylandClient11EventThread3runEv (libQt5WaylandClient.so.5 + 0x19b99)
#5 0x00007f6d80a58c6c _ZN14QThreadPrivate5startEPv (libQt5Core.so.5 + 0x58c6c)
#6 0x00007f6d80480154 start_thread (libc.so.6 + 0x71154)
#7 0x00007f6d80502cac __clone3 (libc.so.6 + 0xf3cac)
Stack trace of thread 4775:
#0 0x00007f6d80488642 __syscall_cancel_arch (libc.so.6 + 0x79642)
#1 0x00007f6d8047c95a __internal_syscall_cancel (libc.so.6 + 0x6d95a)
#2 0x00007f6d8047cfcc __futex_abstimed_wait_common (libc.so.6 + 0x6dfcc)
#3 0x00007f6d8047f69e pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x7069e)
#4 0x00007f6d5d54715d cnd_wait (libgallium-25.1.4.so + 0x54715d)
#5 0x00007f6d5d5010fc util_queue_thread_func (libgallium-25.1.4.so + 0x5010fc)
#6 0x00007f6d5d54708c impl_thrd_routine (libgallium-25.1.4.so + 0x54708c)
#7 0x00007f6d80480154 start_thread (libc.so.6 + 0x71154)
#8 0x00007f6d80502cac __clone3 (libc.so.6 + 0xf3cac)
Stack trace of thread 4772:
#0 0x00007f6d80488642 __syscall_cancel_arch (libc.so.6 + 0x79642)
#1 0x00007f6d8047c95a __internal_syscall_cancel (libc.so.6 + 0x6d95a)
#2 0x00007f6d8047c9a4 __syscall_cancel (libc.so.6 + 0x6d9a4)
#3 0x00007f6d804f6136 ppoll (libc.so.6 + 0xe7136)
#4 0x00007f6d7fcf48b0 g_main_context_iterate_unlocked.isra.0 (libglib-2.0.so.0 + 0x498b0)
#5 0x00007f6d7fcf4973 g_main_context_iteration (libglib-2.0.so.0 + 0x49973)
#6 0x00007f6d80c74867 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x274867)
#7 0x00007f6d80c1dbc2 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x21dbc2)
#8 0x00007f6d80a57936 _ZN7QThread4execEv (libQt5Core.so.5 + 0x57936)
#9 0x00007f6d7d7720c7 _ZN22QDBusConnectionManager3runEv (libQt5DBus.so.5 + 0x60c7)
#10 0x00007f6d80a58c6c _ZN14QThreadPrivate5startEPv (libQt5Core.so.5 + 0x58c6c)
#11 0x00007f6d80480154 start_thread (libc.so.6 + 0x71154)
#12 0x00007f6d80502cac __clone3 (libc.so.6 + 0xf3cac)
Stack trace of thread 4773:
#0 0x00007f6d80488642 __syscall_cancel_arch (libc.so.6 + 0x79642)
#1 0x00007f6d8047c95a __internal_syscall_cancel (libc.so.6 + 0x6d95a)
#2 0x00007f6d8047cfcc __futex_abstimed_wait_common (libc.so.6 + 0x6dfcc)
#3 0x00007f6d8047f69e pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x7069e)
#4 0x00007f6d80a5e99c _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt5Core.so.5 + 0x5e99c)
#5 0x00007f6d7f6b4b46 _ZN15QtWaylandClient11EventThread3runEv (libQt5WaylandClient.so.5 + 0x19b46)
#6 0x00007f6d80a58c6c _ZN14QThreadPrivate5startEPv (libQt5Core.so.5 + 0x58c6c)
#7 0x00007f6d80480154 start_thread (libc.so.6 + 0x71154)
#8 0x00007f6d80502cac __clone3 (libc.so.6 + 0xf3cac)
ELF object binary architecture: AMD x86-64
Any Help appreciated
OK, I reread and noticed several things. Please check that in /usr/lib/udev/hwdb.d/20-sane-backends.hwdb, you have the following:
# EPSON Perfection V370 Photo
usb:v04B8p014A*
libsane_matched=yes
You should if you use Fedora 42, e.g.
Second, where does epsonscan2 come from? Apparantly from installing drivers and software from Epsonās website directly. If that installs drivers they might be fighting with the sane backend for scanner access.
I vaguely recall I had to install drivers from epson (epkowa) in the past and had to make sute they donāt interfere.
This is not in /usr/lib/udev/hwdb.d/20-sane-backends.hwdb
I am pretty certian I downloaded epson2scan from the Epson Website what is best way to fix it?
I have noticed that the epsonscan2-6.7.80.0-1.x86_64.rpm and the epsonscan2-non-free-plugin-1.0.0.6-1.x86_64.rpm are not showing up under Installed Programs. They were installed using the install.sh that came with them from the Epson Download Site. Is this why it fails and should I un-install them and re-install using dnf?
That file is from Fedoraās standard sane package, in my case sane-backends-1.4.0-2.fc42.x86_64. We should have the same content if you have the same (current) version, unless the package from Epson tries to override something. Iām working with Fedoraās packages only, sorry.
Is now working, I uninstalled the Epson Download and re-installed via epson2 flat-pack from Flathub and all works o/k now. Thank you for your help.
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