I have a local USB-Printer, in the past I could use it without problems. It is identified by hal: root@condor:/root(32)# lshal | grep -i print info.product = 'USB Printer Interface' (string) usb.product = 'USB Printer Interface' (string) udi = '/org/freedesktop/Hal/devices/usb_device_922_19_09051913382950_if0_printer_09051913382950' info.capabilities = {'printer'} (string list) info.category = 'printer' (string) info.interfaces = {'org.freedesktop.Hal.Device.Printer'} (string list) info.udi = '/org/freedesktop/Hal/devices/usb_device_922_19_09051913382950_if0_printer_09051913382950' (string) org.freedesktop.Hal.Device.Printer.method_argnames = {'make model'} (string list) org.freedesktop.Hal.Device.Printer.method_execpaths = {'hal_lpadmin --configure'} (string list) org.freedesktop.Hal.Device.Printer.method_names = {'Configure'} (string list) org.freedesktop.Hal.Device.Printer.method_signatures = {'ss'} (string list) printer.commandset = {' '} (string list) printer.description = 'DYMO LabelWriter 400' (string) printer.device = '/dev/usb/lp0' (string) printer.originating_device = '/org/freedesktop/Hal/devices/usb_device_922_19_09051913382950_if0' (string) printer.product = 'LabelWriter 400' (string) printer.serial = '09051913382950' (string) printer.vendor = 'DYMO' (string) It was known to cups as: hal:///org/freedesktop/Hal/devices/usb_device_922_19_09051913382950_if0_printer_09051913382950 So it was shown about the cups web interface. If I now try to print I find in /var/log/cups/error_log Unable to execute /usr/libexec/cups/backend/hal: No such file or directory Indeed there is no hal file in the /usr/libexec/cups/backend/ directory. So I deleted the the printer in the web interface and tried to reinstall the printer. But the web interface offers me as local printers only: Drucker hinzufügen Lokale Drucker: SCSI-Drucker (Unknown) HP Printer (HPLIP) (Unknown) Entdeckte Netzwerkdrucker: Andere Netzwerkdrucker: Windows Printer via SAMBA (Unknown) ... but no printers at the usb or parallel Interface. What should I do? Reproducible: Always root@condor:/root(34)# emerge --info Portage 2.1.8.3 (default/linux/amd64/10.0/desktop, gcc-4.4.4, glibc-2.11.2-r0, 2.6.34-gentoo x86_64) ================================================================= System uname: Linux-2.6.34-gentoo-x86_64-Intel-R-_Core-TM-2_CPU_6600_@_2.40GHz-with-gentoo-2.0.1 Timestamp of tree: Mon, 14 Jun 2010 08:30:01 +0000 app-shells/bash: 4.1_p7 dev-java/java-config: 2.1.11 dev-lang/python: 2.6.5-r2, 3.1.2-r3 dev-util/cmake: 2.8.1-r2 sys-apps/baselayout: 2.0.1 sys-apps/openrc: 0.6.1-r1 sys-apps/sandbox: 2.2 sys-devel/autoconf: 2.13, 2.65 sys-devel/automake: 1.4_p6-r1, 1.7.9-r2, 1.8.5-r4, 1.9.6-r3, 1.10.3, 1.11.1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.4.4 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.10 virtual/os-headers: 2.6.34 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA PUEL dlj-1.1 skype-eula googleearth" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=nocona -O2 -pipe -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/X11/xkb /usr/share/config /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/eselect/postgresql /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=nocona -O2 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests distlocks fixpackages news parallel-fetch protect-owned sandbox sfperms strict unmerge-logs unmerge-orphans userfetch" FFLAGS="-march=nocona -O2 -pipe -fomit-frame-pointer" GENTOO_MIRRORS="http://distfiles.gentoo.org" LDFLAGS="-Wl,-O1" LINGUAS="de fr" MAKEOPTS="-j1" PKGDIR="/usr/portage/packages/" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/var/lib/layman/dotnet /var/lib/layman/java-overlay /var/lib/layman/lordvan /var/lib/layman/perl-experimental /var/lib/layman/science /var/lib/layman/x11 /var/lib/layman/zugaina /var/lib/layman/sunrise /var/lib/layman/arcon /usr/local/portage /var/lib/cpan" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="64bit R X Xaw3d a52 aac abiword acl acpi afs alsa amd64 ao apache2 applet archive arpack asf aspell assistant audacious audiofile automap automount bash-completion beagle berkdb blas blast bluetooth boo boost branding bzip2 cairo cdda cddb cdf cdio cdparanoia cdr cg cgi chm cli consolekit corba cracklib crypt css cuda cups curl cxx daap db dbase dbi dbm dbus designer devhelp device-mapper dga dia djvu doc dri ds2490 ds9097 ds9097u dts dv dvb dvd dvdr dvi dynamicplugin eds elf emacs emboss empathy encode epiphany evo examples exif expat extensions extra extras fam fame ffmpeg fftw firefox fits flac fltk foomaticdb fortran fpx fts3 fuse galago garmin gd gdal gdbm gedit geoip geolocation geos gif gimp ginac git glade glib glitz gml gmp gmtsuppl gnokii gnome gnome-keyring gnome-print gnuplot gnutls gphoto2 gpm grammar graphics graphtft graphviz grass gs gsl gsm gstreamer gtk guile hal harness hddtemp hdf hdf5 hdri hlapi http httpd hvm iconv icq icu id3 ide imagemagick imap innodb inotify ipod ipv6 irda ithreads jabber jadetex java java5 java6 jbig john jpeg jpeg2k kdrive kerberos kpathsea kqemu kvm ladspa lame lapack latex latex3 lcms ldap lensfun libffi libgda libnotify libsamplerate lirc lm_sensors lua lzo mad mail maildir mailwrapper mapnik math matroska mikmod mkl mmx mmxext mng modules mono moonlight motif mozdevelop mozilla mp3 mp4 mpeg mpi mplayer mtp mudflap multilib musicbrainz mysql mysqli nautilus ncurses neXt netcdf netpbm network networking networkmanager nfs nls nntp nptl nptlonly nsplugin ntfs ntp numarray numeric nvidia obex objc ocaml octave odbc ogdi ogg ole openexr opengl openmp overview pae pam pango pcre pda pdf perl plotutils plugins png podcast policykit posix postgres postscript ppds pppd preview-latex proj projectx pstricks pulseaudio pymol python python-bindings qemu qhull qt3support qt4 quicktime readline reflection reiserfs rle romio rpc rrdcgi rrdtool samba sasl science sdl secure-delete semantic-desktop server session sip slang slp smbclient smp sms sndfile snmp soup sox speex spell spl sql sqlite sse sse2 ssl startup-notification stlport subtitles subversion suexec svg swig sysfs szip t1lib tcl tcpd tex tex4ht texmacs theora threads thunderbird tidy tiff tk tntc tools truetype udev unicode usb userlocales utempter v4l2 video virtualbox vorbis wav webdav webdav-serf webkit wmf wxwidgets x264 xattr xcb xemacs xext xine xml xmlreader xmlrpc xorg xpm xulrunner xv xvid xvmc zlib zvbi" ALSA_CARDS="intel8x0" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic auth_digest authn_anon authn_dbd authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs dav_lock dbd deflate dir disk_cache env expires ext_filter file_cache filter headers ident imagemap include info log_config logio mem_cache mime mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect proxy_http rewrite setenvif so speling status unique_id userdir usertrack vhost_alias" DVB_CARDS="tda10045 tda10046lifeview" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev " KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="de fr" NETBEANS_MODULES="apisupport cnd dlight enterprise ergonomics groovy gsf harness ide identity j2ee java mobility nb php profiler ruby websvccommon xml" QEMU_SOFTMMU_TARGETS="i386 ppc ppc64 x86_64" QEMU_USER_TARGETS="arm i386 x86_64" RUBY_TARGETS="ruby18 jruby" USERLAND="GNU" VIDEO_CARDS="nv nvidia nouveau vesa" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
same problem! after upgrade to cups 1.4.4 no print in my printer usb
Created attachment 245920 [details, diff] usb-backend-both-usblp-and-libusb.dpatch after apply this patch from DEBIAN, solve the problem see bug http://bugs.gentoo.org/show_bug.cgi?id=292543 cups (1.4.1-4) unstable; urgency=low [ Till Kamppeter ] * debian/patches/usb-backend-both-usblp-and-libusb.dpatch: Make the USB backend supporting both printer access via libusb and via the usblp kernel module. Make it also printing via libusb if the URI for the queue was generated via usblp and vice versa. This should solve most USB printing problems which occured on the transition to CUPS 1.4.x (LP: #420015, LP: #436495; Closes: #546558, #545288, #545453).
As far as I know, this problem is fixed for a long time: The cups ebuild has a "usb" USE flag. If it is set, you get the "newstyle" (cups 1.4) USB handling. If you emerge with USE="-usb", you should get the oldstyle (cups 1.3) USB handling, and everything should work as it did with earlier cups versions. At least, this did the trick for me: Changed to "-usb", all problems solved, printer works fine for months now...
This is wanted behaviour and we will address it through a news item as soon as we get CUPS 1.4 stable in Gentoo. Thanks for your patience.
