CUPS printing problem with USB

[greg at freephile.com (Greg Rundlett)]

Thanks Gregory,

I did a

    ps -aux | grep serial

There were no serial processes in the output so I'm thinking of just 
rebooting the whole system to see if that puts it back in order.  I 
think it could somehow be permission related, but I'm not sure where or 
why.  Meaning maybe user 'Greg' is not allowed to write to the device, 
or even 'see' it.  But if I reboot, then the processes get started by 
the correct user and I have permissions again.  I won't be able to test 
this theory until I can reach a good 'stopping' point to reboot the machine.

I've pretty much lived paperless for the past 8 months, but now I need 
to print more often.

Thanks for the help.

- Greg


Gregory Boyce wrote:

>I have a similiar problem with my system occasionally.  
>
>Try stopping cups, and grepping your running processes for "serial".  I
>have a process "/usr/lib/cups/backend/serial" which sticks around.  If I
>kill it, and start cups back up, things are fine.
>
>I don't print much, so I haven't tracked down a better solution yet, but
>it's worth checking if it's the same issue.
>
>On Thu, 2003-12-18 at 10:53, Greg Rundlett wrote:
>  
>
>>I celebrated earlier this week having finally connected Open Office
>>and Mozilla to CUPS through KPrinter so that I could actually print
>>things from the applications that I use constantly.  All of a sudden
>>(without changing anything that I'm aware of), CUPS can't open my USB
>>device.
>>
>>Here is what I see in the CUPS web interface
>>(http://spidey.buzgate.org:631/printers/spideyPrinter)
>>Description: hp DeskJet 5550
>>Location: Greg's Desk
>>Printer State: processing, accepting jobs. 
>>"Unable to open USB device
>>"usb://hp/deskjet%205550?serial=MY29P1N4G32L": No such device" 
>>Device URI: usb://hp/deskjet%205550?serial=MY29P1N4G32L
>>
>>I've restarted CUPS, no love.
>>
>>cat /proc/bus/usb/devices
>>
>>seems to show (not implying that I can decipher this output) that
>>there is the proper device:
>>
>>T:  Bus=04 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
>>B:  Alloc= 93/900 us (10%), #Int=  1, #Iso=  0
>>D:  Ver= 1.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
>>P:  Vendor=0000 ProdID=0000 Rev= 0.00
>>S:  Product=USB UHCI Root Hub
>>S:  SerialNumber=ec00
>>C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
>>I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
>>E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=255ms
>>T:  Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  4 Spd=12  MxCh= 0
>>D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
>>P:  Vendor=03f0 ProdID=6004 Rev= 1.00
>>S:  Manufacturer=hp
>>S:  Product=deskjet 5550
>>S:  SerialNumber=MY29P1N4G32L
>>C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=  2mA
>>I:  If#= 0 Alt= 0 #EPs= 2 Cls=07(print) Sub=01 Prot=02 Driver=usblp
>>E:  Ad=81(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
>>E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
>>T:  Bus=04 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#=  3 Spd=1.5 MxCh= 0
>>D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
>>P:  Vendor=046d ProdID=c00e Rev=11.10
>>S:  Manufacturer=Logitech
>>S:  Product=USB-PS/2 Optical Mouse
>>C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr= 98mA
>>I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=02 Driver=hid
>>E:  Ad=81(I) Atr=03(Int.) MxPS=   4 Ivl=10ms
>>T:  Bus=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
>>B:  Alloc=  0/900 us ( 0%), #Int=  0, #Iso=  0
>>D:  Ver= 1.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
>>P:  Vendor=0000 ProdID=0000 Rev= 0.00
>>S:  Product=USB UHCI Root Hub
>>S:  SerialNumber=e800
>>C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
>>I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
>>E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=255ms
>>T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
>>B:  Alloc=  0/900 us ( 0%), #Int=  0, #Iso=  0
>>D:  Ver= 1.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
>>P:  Vendor=0000 ProdID=0000 Rev= 0.00
>>S:  Product=USB UHCI Root Hub
>>S:  SerialNumber=e400
>>C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
>>I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
>>E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=255ms
>>T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 6
>>B:  Alloc=  0/800 us ( 0%), #Int=  0, #Iso=  0
>>D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS= 8 #Cfgs=  1
>>P:  Vendor=0000 ProdID=0000 Rev= 2.04
>>S:  Manufacturer=Linux 2.4.18-14 ehci-hcd
>>S:  Product=Intel Corp. 82801DB USB EHCI Controller
>>S:  SerialNumber=00:1d.7
>>C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
>>I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
>>E:  Ad=81(I) Atr=03(Int.) MxPS=   2 Ivl=256ms
>>
>>
>>Anyone have insight into this problem?
>>
>>
>>
>>-- 
>>FREePHILE
>>We are 'Open' for Business
>>Free and Open Source Software
>>http://www.freephile.com
>>(978) 270-2425
>>Dave Mack:	"Your stupidity, Allen, is simply not up to par."
>>Allen Gwinn:	"Yours is."
>>    
>>

-- 
FREePHILE
We are 'Open' for Business
Free and Open Source Software
http://www.freephile.com
(978) 270-2425
Talking much about oneself can also be a means to conceal oneself.
		-- Friedrich Nietzsche

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