Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: system-config-printer (Ubuntu)
Status: New => Confirmed
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Still the same in Ubuntu 16.10.
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https://bugs.launchpad.net/bugs/301705
Title:
Jobs requiring authentication never display authentication prompt
To manage notifications about this bug
By removing the user from lpadmin it prompts for authentication on some
programs only. For example in Adobe reader it prompts but on Gnome's programs
like Gedit it does not. It's on this bug:
https://bugs.launchpad.net/ubuntu/+source/cups/+bug/283811
For adding or removing printers it works only
Removing my user from the lpadmin group causes queued jobs to be queued
by my user, and the authentication dialog successfully pops up. However,
doing this makes system-config-printer prompt me for the root password
when I run it (instead of gksudo), which is a bit of a problem.
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Jobs
The jobs are shown as queued by user root because non-root users can
read the CUPS root certificate. This misconfiguration is due to the way
Ubuntu sets up cups.
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Jobs requiring authentication never display authentication prompt
https://bugs.launchpad.net/bugs/301705
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