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[Bug Watch Updater <1115701@xxxxxxxxxxxxxxxxxx>]

** Changed in: gnome-control-center
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1115701

Title:
  GNOME Printer Setup Tool: HP printers discovered by both usb and hp
  CUPS backends -> Two indistinguishable entries in the list of
  discovered printers

Status in GNOME Control Center:
  Confirmed
Status in gnome-control-center package in Ubuntu:
  Triaged

Bug description:
  I have several HP printers. If I connect one of them via USB and click
  the "+" button to add a new printer in GNOME's printer setup tool, I
  get two entries where a user will not see the difference:

  HP-LaserJet-3390
  HP-LaserJet-3390-2

  To find out why I got two entries, I added two print queues, one using
  the first entry, another using the second entry. Then I ran the
  command

  lpstat -v

  and got

  device for HP-LaserJet-3390: usb://HP/LaserJet%203390?serial=00CNMJP81545
  device for HP-LaserJet-3390-2: hp:/usb/HP_LaserJet_3390?serial=00CNMJP81545

  So the first comes from the HP LaserJet 3390 discovered via the "usb"
  CUPS backend and the second from the same printer via the "hp"
  backend.

  The preferred backend is the latter, as it is made by HP especially
  for HP printers. Therefore there should be only one entry, using the
  "hp" backend. system-config-printer does this correctly, so usingf the
  D-Bus service of system-config-printer one should be able to join
  these entries to one using the "hp" backend.

  Note that this is not a duplicate of bug 1115669. That bug is about
  making duplicate entries distinguishable, this bug is about making the
  "hp" backend used with HP printers.

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