receive authentication canceled in terminal when changing options in "Other Software"

Bug #1797649 reported by Brian Murray on 2018-10-12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
software-properties (Ubuntu)

Bug Description

I've tried to disable some PPAs in the "Other Software" tab of software-properties and whenever I check a box for the first time I get a message in the terminal about "ERROR:root:Authentication canceled, changes have not been saved" (although an authentication dialog has not appeared) and the dialog box greys out. However, frequently upon clicking the box for a second time (when it is greyed out) I am then presented with an authentication dialog. This seems quite odd.

I've tested this the following versions of software-properties-gtk. from bionic
0.26.27 from cosmic

tags: added: bionic cosmic
Changed in software-properties (Ubuntu):
importance: Undecided → Medium
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in software-properties (Ubuntu):
status: New → Confirmed
Chris Rainey (ckrzen) wrote :

I can confirm Brian's experience _and_ I'm not prompted for authentication when launching the .desktop file from ubuntu-session.

Chris Rainey (ckrzen) wrote :

Works as expected in Xubuntu 18.10. Must be something in the ubuntu-session policykit/PAM/systemd auth?

Chris Rainey (ckrzen) wrote :

*WORKAROUND* in Ubuntu 18.10:

$ sudo -i

# software-properties-gtk

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