Oneiric usblp no longer loaded when USB printer is connected, printer not recognized by the new libusb-based CUPS backend
Bug #842823 reported by
Chris Bainbridge
This bug report is a duplicate of:
Bug #872711: Kernel does not report some USB printers correctly, making them not being detected by CUPS.
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This bug affects 11 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
cups (Ubuntu) |
Won't Fix
|
Undecided
|
Unassigned |
Bug Description
After updating from Natty to Oneiric my USB printer stopped working. It turned out /dev/usb/lp0 was missing. This appears to be due to the module usblp no longer being loaded automatically when the printer is connected.
Natty:
[ 171.216266] usb 1-4: new high speed USB device using ehci_hcd and address 2
[ 171.688446] usblp0: USB Bidirectional printer dev 2 if 0 alt 0 proto 2 vid
0x04A9 pid 0x26DA
[ 171.689057] usbcore: registered new interface driver usblp
[ 173.109642] usb 1-4: usbfs: interface 0 claimed by usblp while 'usb' sets
config #1
Oneiric:
[ 975.800030] usb 1-7: new high speed USB device number 9 using ehci_hcd
Changed in udev (Ubuntu): | |
status: | New → Confirmed |
tags: | added: oneiric |
affects: | udev (Ubuntu) → cups (Ubuntu) |
summary: |
- Oneiric usblp no longer loaded when USB printer is connected + Oneiric usblp no longer loaded when USB printer is connected, printer + not recognized by the new libusb-based CUPS backend |
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http:// permalink. gmane.org/ gmane.comp. printing. cups.bugs/ 8162
Till Kamppeter says:
"Following some e-mail exchange with Mike Sweet I have deprecated the usblp
kernel module in Ubuntu and Debian, at least if CUPS is used as the
printing system.
In the Debian/Ubuntu package of CUPS I have switched over from getting the
usblp kernel module auto-loaded and using the usblp-based "usb" CUPS
backend to blacklisting the usblp kernel module and using the libusb-based
"usb" CUPS backend."