(This bug is similar to 90598, but I'm not offered an option to reopen that one so I'm starting a new one.) I can't get my Epson Perfection 640U recognised properly: # sane-find-scanner -q found USB scanner (vendor=0x04b8 [EPSON], product=0x010c [Perfection640 ]) at libusb:002:002 but: # scanimage -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). # lsusb Bus 001 Device 001: ID 0000:0000 Bus 002 Device 002: ID 04b8:010c Seiko Epson Corp. Perfection 640 Bus 002 Device 004: ID 0482:000e Kyocera Corp. FS-1020D Printer Bus 002 Device 003: ID 046d:c50b Logitech, Inc. Cordless Desktop Optical Bus 002 Device 001: ID 0000:0000 I've attached an strace output. I'm no Linux programmer, but I can't reconcile the two sets of file-open calls in lines 248 to 277 and 318 to 322. I assume that the name of backend to use has been established in line 280, but it looks as though it hasn't been translated to the right entry in /usr/lib64/sane/. # emerge --info Portage 2.1.2.1 (default-linux/amd64/2006.1, gcc-4.1.2, glibc-2.5-r0, 2.6.20-gentoo x86_64) ================================================================= System uname: 2.6.20-gentoo x86_64 AMD Opteron(tm) Processor 246 Gentoo Base System release 1.12.9 Timestamp of tree: Tue, 06 Mar 2007 05:20:01 +0000 distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled] ccache version 2.4 [enabled] dev-java/java-config: 1.3.7, 2.0.31-r4 dev-lang/python: 2.4.4 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: 2.4-r6 sys-apps/sandbox: 1.2.18.1 sys-devel/autoconf: 2.13, 2.61 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.17 sys-devel/gcc-config: 1.3.15 sys-devel/libtool: 1.5.23b virtual/os-headers: 2.6.20-r1 ACCEPT_KEYWORDS="amd64 ~amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=opteron -Os -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo /etc/texmf/web2c" CXXFLAGS="-march=opteron -Os -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig buildpkg ccache distlocks fixpackages metadata-transfer parallel-fetch sandbox sfperms strict userfetch userpriv usersandbox" GENTOO_MIRRORS="http://gentoo.blueyonder.co.uk http://ftp.easynet.nl/mirror/gentoo http://trumpetti.atm.tut.fi/gentoo/ ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo http://distfiles.gentoo.org" LANG="en_GB.UTF-8" LC_ALL="en_GB.UTF-8" LINGUAS="en_GB" MAKEOPTS="-j5" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --filter=H_**/files/digest-*" PORTAGE_TMPDIR="/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://gate.prhnet/gentoo-portage" USE="X aac aalib acpi alsa amd64 arts bash-completion berkdb bitmap-fonts bzip2 cairo cdr cli cracklib crypt cups dbus dri dvd dvdr encode fam ffmpeg firefox fortran gdbm gif gpm gs iconv ipv6 ithreads java javascript jpeg jpeg2k kde kdeenablefinal lcms libg++ lm_sensors logitech-mouse logrotate midi mng mp3 mpeg ncurses nls nptl nptlonly nvidia ogg opengl pam pcre pdf perl png ppds pppd python qt3 qt4 quicktime readline reflection samba sample scanner sdl session smp spell spl ssl svg tcpd tetex tiff truetype truetype-fonts type1-fonts unicode usb userlocales vorbis wmf xml xml2 xorg zlib" ALSA_CARDS="intel8x0" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" CAMERAS="fuji" ELIBC="glibc" INPUT_DEVICES="keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en_GB" USERLAND="GNU" VIDEO_CARDS="nv nvidia" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Created attachment 112399 [details] strace -f -o log scanimage -L
I've found that putting SANE_BACKENDS="epson" into /etc/make.conf, remerging sane-backends and restarting udev enabled the scanner to be found. I suggest that this bug should be closed, and instead a how-to be written to explain what needs to be done. None of the documents I found are at all helpful.
Please see this discussion for further details: http://forums.gentoo.org/viewtopic-p-3949604.html#3949604
(In reply to comment #3) > Please see this discussion for further details: > > http://forums.gentoo.org/viewtopic-p-3949604.html#3949604 Very strange. Could you please do me two favours: - build sane-backends without SANE_BACKENDS set and give me the list of backends actually installed on your system. - give me the strace log of a successful scanimage -L Thank you.
Created attachment 112699 [details] strace -f -o log scanimage -L Successful strace before remerging sane-backends with SANE_BACKENDS unset.
Ok, no problem. After commenting-out the SANE_BACKENDS entry in make.conf, I captured this screen output during "emerge sane-backends": -> Variables used for compilation/linking: CPPFLAGS=" -D_REENTRANT -I/usr/include/gphoto2 -I/usr/include/libexif -DPATH_SANE_CONFIG_DIR=$(configdir) -DPATH_SANE_DATA_DIR=$(datadir) -DPATH_SANE_LOCK_DIR=$(locksanedir) -DV_MAJOR=1 -DV_MINOR=0" CFLAGS="-march=opteron -Os -pipe -W -Wall" LDFLAGS=" " LIBS="-lusb -lpthread -lm -ljpeg -ltiff -lieee1284 -lgphoto2 -lgphoto2_port -lexif -lm -lusb" -> Installation directories: Configuration: /etc Libraries: /usr/lib64 Binaries: /usr/bin and /usr/sbin Manpages: /usr/share/man Documentation: /usr/doc/sane-1.0.18 Lockfiles: Feature is disabled! -> Network parameters: Build saned: yes IPv6 support: yes -> The following backends will be built: abaton agfafocus apple artec as6e avision bh brother canon canon630u coolscan coolscan2 dc25 dmc epson fujitsu genesys gt68xx hp leo lexmark matsushita microtek microtek2 mustek mustek_usb nec pie pixma plustek plustek_pp ricoh s9036 sceptre sharp sp15c st400 tamarack test teco1 teco2 teco3 umax umax_pp umax1220u artec_eplus48u ma1509 ibm hp5400 u12 snapscan niash sm3840 hp4200 sm3600 hp3500 stv680 dc210 dc240 canon_pp hpsj5s mustek_pp dell1600n_net gphoto2 qcam v4l net mustek_usb2 After that emerge (no backend set in the environment of emerge): # ls -1 /usr/lib64/sane | cut -d . -f 1 | uniq libsane-abaton libsane-agfafocus libsane-apple libsane-artec_eplus48u libsane-artec libsane-as6e libsane-avision libsane-bh libsane-brother libsane-canon630u libsane-canon libsane-canon_pp libsane-canon libsane-coolscan2 libsane-coolscan libsane-dc210 libsane-dc240 libsane-dc25 libsane-dell1600n_net libsane-dll libsane-dmc libsane-epson libsane-fujitsu libsane-genesys libsane-gphoto2 libsane-gt68xx libsane-hp3500 libsane-hp4200 libsane-hp5400 libsane-hp libsane-hpsj5s libsane-hp libsane-ibm libsane-leo libsane-lexmark libsane-ma1509 libsane-matsushita libsane-microtek2 libsane-microtek libsane-mustek libsane-mustek_pp libsane-mustek libsane-mustek_usb2 libsane-mustek_usb libsane-nec libsane-net libsane-niash libsane-pie libsane-pixma libsane-plustek libsane-plustek_pp libsane-plustek libsane-qcam libsane-ricoh libsane-s9036 libsane-sceptre libsane-sharp libsane-sm3600 libsane-sm3840 libsane-snapscan libsane-sp15c libsane-st400 libsane-stv680 libsane-tamarack libsane-teco1 libsane-teco2 libsane-teco3 libsane-test libsane-u12 libsane-umax1220u libsane-umax libsane-umax_pp libsane-umax libsane-v4l Now I get a successful scan-image -L. I'll reboot and then try again.
Do you have installed hotplug? I found that it should actually be in the dependances, as the /etc/udev/rules.d files for scanner recognition are inside the hotplug package.....
Ops , sorry my fault, they were updated in my system after an emerge -1 sane-backend , try it yourself and if you need an etc-update you're there.
(In reply to comment #6) > Now I get a successful scan-image -L. I'll reboot and then try again. Oops! Sorry folks - I forgot to report back. In fact, the scanner works just fine now. No, I don't have either hotplug or coldplug installed. As far as I can see, I've finished up with exactly the same system as before, with the one exception that my scanner wasn't detected before but it is now. I can't explain that.
No idea, either. But since it works now - closing.
