Bug#658391: libprintbackend-cups: useless authentication dialog box with a remote CUPS server

[Vincent Lefevre]

Package: libgtk-3-0
Version: 3.2.3-1
Severity: normal

When I want to print from evince, I get the Print dialog box with
the list of printers, and for one of them, Status says:

  Getting printer information...

and a dialog box

  Authentication is required to get a file from <name_of_CUPS_server>

appears. Authentication is needed to print on such a printer, but
if I want to print on another one or print to file, authentication
is not needed.

Thus this authentication dialog box is annoying. It should appear
only when needed.

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages libgtk-3-0 depends on:
ii  libatk1.0-0         2.2.0-2
ii  libc6               2.13-25
ii  libcairo-gobject2   1.10.2-6.2
ii  libcairo2           1.10.2-6.2
ii  libcomerr2          1.42-1
ii  libcups2            1.4.6-11+b1
ii  libfontconfig1      2.8.0-3.1
ii  libfreetype6        2.4.8-1
ii  libgcrypt11         1.5.0-3
ii  libgdk-pixbuf2.0-0  2.24.0-2
ii  libglib2.0-0        2.30.2-6
ii  libgnutls26         2.12.16-1
ii  libgssapi-krb5-2    1.10+dfsg~beta1-2
ii  libgtk-3-common     3.2.3-1
ii  libk5crypto3        1.10+dfsg~beta1-2
ii  libkrb5-3           1.10+dfsg~beta1-2
ii  libpango1.0-0       1.29.4-2
ii  libx11-6            2:1.4.4-4
ii  libxcomposite1      1:0.4.3-2
ii  libxcursor1         1:1.1.12-1
ii  libxdamage1         1:1.1.3-2
ii  libxext6            2:1.3.0-3
ii  libxfixes3          1:5.0-4
ii  libxi6              2:1.4.5-1
ii  libxinerama1        2:1.1.1-3
ii  libxrandr2          2:1.3.2-2
ii  multiarch-support   2.13-25
ii  shared-mime-info    0.90-1
ii  zlib1g              1:1.2.3.4.dfsg-3

Versions of packages libgtk-3-0 recommends:
ii  hicolor-icon-theme  0.12-1
ii  libgtk-3-bin        3.2.3-1

Versions of packages libgtk-3-0 suggests:
ii  gvfs             1.10.1-2
ii  librsvg2-common  2.34.2-2

-- no debconf information