Description of problem: Version-Release number of selected component (if applicable): cups-1.2.7-1.5.fc6 How reproducible: Always Steps to Reproduce: 1.Connect local printer to computer with x86_64 kernel (or x86_64 kernel-xen) either Pentium-D or Core 2 Duo 2.Use system-config-printer to set up printer (either HP2420D or Canon S530D) using either Postscript or not 3.Try to print a test page Actual results: Nothing prints out Expected results: Test page should print out Additional info: There was no problem printing to a local printer when using a 32 bit CPU with 32 bit kernel. When the printer was connected with a parallel cable, the following error message kept repeating in /var/log/messages : Jan 7 04:14:16 dickson hp_LaserJet_2420?serial=CNGJD22636: INFO: open device fa iled; will retry in 30 seconds... Jan 7 04:14:46 dickson hp_LaserJet_2420?serial=CNGJD22636: unable to send Devic eOpen: Broken pipe: prnt/hpijs/hplip_api.c 420 When the printer was connected with a USB cable, the following error message kept repeating in /var/log/messages : Dec 31 04:28:25 dickson hpiod: unable to write MLCInit: Resource temporarily una vailable io/hpiod/mlc.cpp 321 Dec 31 04:28:25 dickson hpiod: error discarding URB: Invalid argument urb=0x6216 d0 io/hpiod/usbext.c 131 Dec 31 04:28:26 dickson hp_LaserJet_2420?serial=CNGJD22636: INFO: open print cha nnel failed; will retry in 30 seconds...
What does 'rpm -q hplip' say?
hplip-1.6.10-1.fc6.4
Please try 1.6.12-1.fc6 from updates-testing: yum --enablerepo=updates-testing update 'hplip*' 'hpijs*' 'libsane-hpaio*'
That fixed the problem for using usb local printers. I still have the same error message when using the local serial port, but that may be a problem with that specific motherboard. At this point, I am satisfied, since my local printers can all connect via usb cables.
The USB printers no longer print. Both computers are using 64bit FC6 and both automatically update through yum each night. Obviously, some update broke the previous fix. There was no error message in /var/log/messages regarding this, and the following is from /var/log/cups/error_log: I [16/Mar/2007:11:55:02 -0500] Adding start banner page "none" to job 261. I [16/Mar/2007:11:55:02 -0500] Adding end banner page "none" to job 261. I [16/Mar/2007:11:55:02 -0500] Job 261 queued on "lp" by "root". I [16/Mar/2007:11:55:02 -0500] Started filter /usr/lib/cups/filter/texttopaps (P ID 14397) for job 261. I [16/Mar/2007:11:55:02 -0500] Started filter /usr/lib/cups/filter/pstops (PID 1 4398) for job 261. I [16/Mar/2007:11:55:02 -0500] Started backend /usr/lib/cups/backend/usb (PID 14 399) for job 261.
Ed: please file a separate bug report.