Bug#352142: HP 1320 quit working except when set to "Save Toner" mode

[Jeffery von Ronne <vonronne@cs.utsa.edu>]

On Mon, Feb 13, 2006 at 08:13:05PM -0200, Henrique de Moraes Holschuh wrote:
> hpio and hpssd are having trouble in your machine.  Check syslog.  

There's definitely some errors, some of it coming from the kernel usblp
module.  But perhaps, that is just me power-cycling the printer.

For example: 
  Feb 13 13:59:52 localhost kernel: drivers/usb/class/usblp.c: usblp0: nonzero read/write bulk status received: -2
  Feb 13 13:59:52 localhost kernel: drivers/usb/class/usblp.c: usblp0: error -2 reading from printer
  Feb 13 14:00:08 localhost kernel: drivers/usb/class/usblp.c: usblp0: error = -110 setting HP channel
  Feb 13 14:00:34 localhost hpiod: unable to read uri:hp:/usb/ANY?device=/dev/usb/lp0 Device::DeviceID: Input/output error
  Feb 13 14:00:53 localhost kernel: usb 5-1.3.1.1: USB disconnect, address 13
  Feb 13 14:00:53 localhost kernel: drivers/usb/class/usblp.c: usblp0: removed
  Feb 13 14:01:05 localhost kernel: usb 5-1.3.1.1: new full speed USB device using ehci_hcd and address 14
  Feb 13 14:01:05 localhost kernel: drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 14 if 0 alt 1 proto 2 vid 0x03F0 pid 0x1D17


But the strange thing is, that I just rebooted to see if I could produce
a clean syslog.  With just a print failure, and now I can't reproduce the
problem.  I can use hp:/usb/hp_LaserJet_1320_series?device=/dev/usb/lp0
with the foomatic PPD and it just works even in high quality duplex.
So I can't reproduce the problem anymore.

(But cupsd does still spins in an infinite loop if I try to list the available 
"HP (HPLID)" PPD's.)

I did a system upgrade this afternoon, including new versions of hal and
dbus, so it's possible that changed something.  I have no idea what
though.

> Check
> permissions on the USB ports (user hplip or group lp must be able to access
> the /dev/usb/lp/* devices for read and write).

The permissions looked OK (before the reboot):
  crw-rw----  1 root lp 180, 0 2006-02-13 15:28 /dev/usb/lp0



-- 
Jeffery von Ronne
Assistant Professor
Department of Computer Science
University of Texas at San Antonio