Bug#905205: system-config-printer: Ask root password to configure printer while beeing in lpadmin group

[Simone Piccardi]

Package: system-config-printer
Version: 1.5.11-2
Severity: normal

Dear Maintainer,

I'm using the XFCE desktop, and lanching printer manager from application 
menu. I tryied to unblock it to add a printer, and it's asking me the 
root password not the one of the user I was using.

The user is the user created on installation, and it's inside the lpadmin 
group. If I try to install a printer using lpadmin it works fine:

antani at buster:~$ id antani
uid=1000(antani) gid=1000(antani) gruppi=1000(antani),24(cdrom),25(floppy),29(audio),30(dip),44(video),46(plugdev),106(netdev),113(lpadmin),114(scanner)
antani at buster:~$ /usr/sbin/lpadmin -p prova -E -v ipp://192.168.0.2:631
antani at buster:~$ lpstat -v
dispositivo per prova: ipp://192.168.0.2:631

It also works via browser in port 631 using the current user and password.

This way I cannot give an user the privilege of adding or managing printers

-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.16.0-2-amd64 (SMP w/1 CPU core)
Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8), LANGUAGE=it_IT.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages system-config-printer depends on:
ii  gir1.2-gdkpixbuf-2.0          2.36.12-1
ii  gir1.2-glib-2.0               1.56.1-1
ii  gir1.2-gtk-3.0                3.22.30-2
ii  gir1.2-notify-0.7             0.7.7-3
ii  gir1.2-packagekitglib-1.0     1.1.10-1
ii  gir1.2-pango-1.0              1.42.1-2
ii  gir1.2-polkit-1.0             0.105-21
ii  python3                       3.6.5-3
ii  python3-cups                  1.9.73-2+b1
ii  python3-cupshelpers           1.5.11-2
ii  python3-dbus                  1.2.8-2+b1
ii  python3-gi                    3.28.2-1+b1
ii  system-config-printer-common  1.5.11-2

Versions of packages system-config-printer recommends:
ii  system-config-printer-udev  1.5.11-2

Versions of packages system-config-printer suggests:
pn  gnome-software  <none>

-- no debconf information