Description of problem:
hp-probe claims no printer is present, /dev/usb/lp0 is there. Restarting hplip
gives in /var/log/messages;
hpiod: invalid product id string: Operation not permitted io/hpiod/system.cpp 491
hpiod: invalid serial id string: Operation not permitted io/hpiod/system.cpp 496
Version-Release number of selected component (if applicable):
Steps to Reproduce:
It used to complain (on June 24, machine kept up to date daily or thereabouts):
hpiod: invalid product id string: Operation not permitted
hpiod: unable to Device::Open
hp:/usb/hp_LaserJet_1320_series?serial=00BRGS559G1V io/hpiod/device.cpp 942
hp_LaserJet_1320_series?serial=00BRGS559G1V: INFO: open device failed; will
retry in 30 seconds...
hp-info says (sorry I didn't get the garish colors right):
[root@quelen ~]# hp-info
HP Linux Imaging and Printing System (ver. 1.7.4a)
Device Information Utility ver. 3.4
Copyright (c) 2001-7 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.
warning: Inrecognized URI: ipp://lp-red.inf.utfsm.cl/printers/queue1
Using device: hp:/usb/hp_LaserJet_1320_series?serial=00BRGS559G1V
error: Unable to communicate with device:
error: Error opening device (Device not found). Exiting.
Created attachment 159429 [details]
Output of hp-info
Comment on attachment 159429 [details]
Output of hp-info
Now (hplip-2.7.6-6.fc8) it recognizes the printer, but hp-testpage doesn't
With 2.7.6 there is an unresolved problem concerning device permissions. For
1. run lsusb and note which bus and which device the printer is
2. as root run 'chgrp lp /proc/bus/usb/???/???' (bus, device)
3. as root run 'chmod g+w /proc/bus/usb/???/???' (bus, device)
lsusb is in the usbutils package, which I did not have installed... got
Bus 001 Device 002: ID 03f0:1d17 Hewlett-Packard
but after "ls -l /proc/bus/usb/001/002" the file doesn't exist anymore!
Rebooting. restorecond, Avahi and HAL fail to start (HAL hangs... reboot again).
After the commands you gave, plus "service cups restart" a testpage I sent
earlier showed up.
And trying to print remotely, /proc/bus/usb/001/002 is gone again. After
"hp-probe", "lpq", ... it is again there (?), with the right group and
permissions. The remote print job just isn't handed over to the local cups
unless I restart it again, but then /proc/bus/usb/001/002 is again gone... and
reappears after "hp-probe", but the printjob is gone after "service cups
restart" (as it isn't printed out).
(Sorry for the mess).
OK, after today's round of updates (cups-1.3-0.b1.1.fc8, hplip-2.7.6-8.fc8) both
on the machine where the printer is connected (x86_64, via USB) plus this
notebook (i686) I can print again, both locally and remotely.