Comment 19 for bug 910272

Revision history for this message
Till Kamppeter (till-kamppeter) wrote :

Note that the URI has changed with my new patch. It must be something like

usb://Unknown/Printer

or

usb://Unknown/Printer?serial=...

Printer setup tools should show the model simply as "Unknown". At least system-config-printer does so. http://localhost:631/ (CUPS web interface) should do so, too.

Please have the printer connected and turned on, preferably connect the parallel port at the printer before connecting the USB port at the computer. Have the printer turned on when connecting the USB. Then run the following commands in a terminal window:

sudo rmmod usblp
lsusb
ls -l /dev/bus/usb/*/*
ls -l /dev/usb/lp*
sudo /usr/lib/cups/backend/usb
ldd /usr/lib/cups/backend/usb | grep usb
lpinfo -v
sudo modprobe usblp
lsmod | grep usb
sudo usb_printerid /dev/usb/lp0
sudo rmmod usblp

Post the output here.