sane y xsane pierden acceso al escaner
Estimados:
Tengo dos máquinas distintas, con distintos escáneres, ambas corriendo
GNU/Linux Debian squeeze.
Me está pasando que cuando quiero hacer un escaneo como usuario común
con xsane, me reporta que no encuentra el escaner. Para que lo pueda
hacer debo desinstalar xsane y sane purgándolo, y luego reinstalarlo.
Ahí sí funciona.
Apago la máquina, vuelvo a encender, y neuvamente no puedo utilizar
xsane, dado que no detecta el escáner como usuario común.
Lo curioso, es que desde root lo hace sin problemas.
Como datos, aporto que los usuarios son miembros de los grupos saned,
scanner y hplip.
Como detalle, agrego las corridas de lsusb, sane-find-scanner y
scanimage -L como usuario y como root. Verán que hay diferencias.
Si alguien sabe a qué puede deberse, agradecería la ayuda.
Gracias en adelanto.
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Como usuario normal:
$ sane-find-scanner
# sane-find-scanner will now attempt to detect your scanner. If the
# result is different from what you expected, first make sure your
# scanner is powered up and properly connected to your computer.
# No SCSI scanners found. If you expected something different, make sure that
# you have loaded a kernel SCSI driver for your SCSI adapter.
found USB scanner (vendor=0x03f0, product=0x4d11) at libusb:006:003
# Your USB scanner was (probably) detected. It may or may not be supported by
# SANE. Try scanimage -L and read the backend's manpage.
# Not checking for parallel port scanners.
# Most Scanners connected to the parallel port or other proprietary ports
# can't be detected by this program.
# You may want to run this program as root to find all devices. Once you
# found the scanner devices, be sure to adjust access permissions as
# necessary.
$ 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).
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Como root:
# sane-find-scanner
# sane-find-scanner will now attempt to detect your scanner. If the
# result is different from what you expected, first make sure your
# scanner is powered up and properly connected to your computer.
# No SCSI scanners found. If you expected something different, make sure that
# you have loaded a kernel SCSI driver for your SCSI adapter.
found USB scanner (vendor=0x03f0 [HP], product=0x4d11 [PSC 1400
series]) at libusb:006:003
# Your USB scanner was (probably) detected. It may or may not be supported by
# SANE. Try scanimage -L and read the backend's manpage.
# Not checking for parallel port scanners.
# Most Scanners connected to the parallel port or other proprietary ports
# can't be detected by this program.
# scanimage -L
device `hpaio:/usb/PSC_1400_series?serial=BR61D2G0PG04BM' is a
Hewlett-Packard PSC_1400_series all-in-one
-----------
# lsusb
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 003: ID 03f0:4d11 Hewlett-Packard PSC 1400
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 002: ID 0458:009f KYE Systems Corp. (Mouse Systems)
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
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