https://bugzilla.novell.com/show_bug.cgi?id=679488 https://bugzilla.novell.com/show_bug.cgi?id=679488#c8 Johannes Meixner <jsmeix@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|CUPS cannot see Brother MFC |CUPS cannot detect USB |8420 |printer Brother MFC 8420 --- Comment #8 from Johannes Meixner <jsmeix@novell.com> 2011-03-16 15:29:51 UTC --- As expected CUPS can no longer detect your USB printer in case of openSUSE 11.4. Usually the root cause is a lower-level USB issue. But I am no USB expert to really debug lower-level USB issues. Some best-effort attempts: Are there any (error)-messages when you re-load the usblp kernel module and then run the CUPS backend "usb" directly as root as follows: rmmod usblp modprobe usblp /usr/lib/cups/backend/usb On my system this results (too long line wrapped here): ------------------------------------------------------------- # rmmod usblp # modprobe usblp # /usr/lib/cups/backend/usb direct usb://HP/LaserJet%201020 "HP LaserJet 1020" "HP LaserJet 1020" "MFG:Hewlett-Packard; MDL:HP LaserJet 1020;CMD:ACL;CLS:PRINTER; DES:HP LaserJet 1020;FWVER:20080222;" "" ------------------------------------------------------------- Are there USB related (error)-messages in the output of the command "dmesg" or in /var/log/messages? Perhaps the commands (as root) dmesg | grep -i 'usb' or grep -i 'usb' /var/log/messages show something of interest? Can you send ASCII text directly to the printer using the following command (as root): echo -en "\rHello\r\f" >/dev/usb/lp0 see http://en.opensuse.org/SDB:Installing_a_Printer If the above "echo ..." command results something like "/dev/usb/lp0: Device or resource busy": Is there perhaps another process which may use /dev/usb/lp0 exclusively? Does the command (you must run it as root) fuser -v /dev/usb/lp0 show something? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.