Today i tried to print directly from my notebook to printer so i pushed in the cable and send the printjob to the printer e configured month ago but nothing happens, the webinterface says the job is in queue and active. I have no idea what is going on. I can't reinstall the printer because i can't select usb printer. The cups log doesn't show some special. Reproducible: Always
Please tell us what printer and driver you use, attach the output of an emerge --info and also the output of: # ls -l /dev/usb/lp0 /dev/usb/lp0 has to be owned by root:lp, if it's not you have to find out which udev rule sets the wrong permissions.
I have the same problem as the user below. After about 3 months gap I did an update, only to find out that the printer isn't working afterwords: HP PhotoSmart C3180 (I'm using hplip). The first suspect was a faulty hplip (it has happened before), but after updating to latest unstable (2.8.6b) and doing a lot of remove/readd queue, it still doesn't work, so I now turned to cups/OS. User is member of "lp" group, /dev/usb/lp0 has the right permissions, but the job simply sits in the queue and cups gives me no error (i see only INFO messages in error log; the only thing that I can see in the (system) log is: --- Aug 7 10:29:08 localhost Photosmart_C3100_series?serial=CN78AC80WN04P9: prnt/backend/hp.c 675: INFO: open device failed; will retry in 30 seconds... Aug 7 10:29:38 localhost Photosmart_C3100_series?serial=CN78AC80WN04P9: io/hpmud/musb.c 135: unable get_string_descriptor -1: Operation not permitted Aug 7 10:29:38 localhost Photosmart_C3100_series?serial=CN78AC80WN04P9: io/hpmud/musb.c 603: invalid product id string ret=-1 Aug 7 10:29:38 localhost Photosmart_C3100_series?serial=CN78AC80WN04P9: io/hpmud/musb.c 1058: unable to open hp:/usb/Photosmart_C3100_series?serial=CN78AC80WN04P9 --- the funny part is that when that happens, /dev/usb/ directory dissapears (along with the lp0 char dev that was there). I have this line in kernel log buffer: "usblp0: removed" that hints at missing /dev/usb/lp0. I have to "rmmod usblp"; "modprobe usblp" to make the /dev/usb/lp0 node come back, but upon trying to access the printer in order to print the job cups/hplip makes it go away again below is a emerge --info from the affected box: zeus ~ # emerge --info Portage 2.1.4.4 (default/linux/x86/2008.0/desktop, gcc-4.1.2, glibc-2.6.1-r0, 2.6.25-gentoo-r7 i686) ================================================================= System uname: 2.6.25-gentoo-r7 i686 Pentium III (Katmai) Timestamp of tree: Tue, 05 Aug 2008 18:34:01 +0000 app-shells/bash: 3.2_p33 dev-java/java-config: 1.3.7, 2.1.6 dev-lang/python: 2.4.4-r9, 2.5.2-r6 dev-python/pycrypto: 2.0.1-r6 sys-apps/baselayout: 1.12.11.1 sys-apps/sandbox: 1.2.18.1-r2 sys-devel/autoconf: 2.13, 2.61-r2 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.1 sys-devel/binutils: 2.18-r3 sys-devel/gcc-config: 1.4.0-r4 sys-devel/libtool: 1.5.26 virtual/os-headers: 2.6.23-r3 ACCEPT_KEYWORDS="x86" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=pentium3 -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/config" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/revdep-rebuild /etc/terminfo /etc/udev/rules.d" CXXFLAGS="-O2 -march=pentium3 -pipe -fvisibility-inlines-hidden" DISTDIR="/usr/portage/distfiles" FEATURES="distlocks metadata-transfer noinfo parallel-fetch sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS="http://gd.tuwien.ac.at/opsys/linux/gentoo" LC_ALL="ro_RO.utf8" LDFLAGS="-Wl,-O1" LINGUAS="ro en" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" 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" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="acl alsa berkdb bonobo bzip2 cdr crypt cups dbus dri gdbm gtk hal imagemagick imlib ithreads jpeg kde kdehiddenvisibility lcms lm_sensors mime mmap mmx mmx2 mng ncurses nls nptl opengl pam python scanner sse ssl threads unicode usb x86 xml xprint zeroconf zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm asym copy alaw dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon 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 deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="ro en" USERLAND="GNU" VIDEO_CARDS="mga vesa vga" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY As I had a pretty big gap in updating, the last update brought me new kernel, udev, cups (I was on 1.2.something before) and hplip.
I've been fighting with a problem like this for hours. It seems like the culprit is 70-hpmud.rules from hplip. It needs to be higher (e.g 71-hpmud.rules) and everything will go well. Please fix this extremely annoying and hard to debug problem Thanks
@Florian Manschwetus: Sorry we cannot do anything about your problem since your report misses a lot required information. @Carlos Cordoba: Is this still a problem with current cups?
No response, and in addition cups-1.3 is now gone.