muon freezes when we enter wrong password

Bug #1579585 reported by Marcin Sągol on 2016-05-08
This bug affects 4 people
Affects Status Importance Assigned to Milestone
muon (Ubuntu)

Bug Description

If I run Muon Package Manager and from Properties menu try to Configure Software Sources I am asked for password. If I type wrong one the window with password field freezes and I can't do much except forcing it to close.

This is only output if I start muon from console:

soee@TachikomaDell:~$ muon
Invalid pixmap specified.
No frame loaded
No frame loaded
No frame loaded
No frame loaded
No frame loaded
No frame loaded
Couldn't find the releasechecker script ("/home/soee/.local/share", "/usr/share/usr/share/xsessions/plasma", "/usr/local/share", "/usr/share")
No frame loaded
No frame loaded
No frame loaded
org.kde.kdesu: Daemon not safe (not sgid), not using it.

Description: Ubuntu 16.04 LTS
Release: 16.04

  Installed: 4:5.6.0-0ubuntu1
  Candidate: 4:5.6.0-0ubuntu1
  Version table:
 *** 4:5.6.0-0ubuntu1 500
        500 xenial/universe amd64 Packages
        100 /var/lib/dpkg/status

Marcin Sągol (soee) on 2016-05-08
description: updated
description: updated
Launchpad Janitor (janitor) wrote :

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

Changed in muon (Ubuntu):
status: New → Confirmed

Confirmed, Muon Package Manager is trying to use KDE su to open /usr/bin/software-properties-kde

Giving it the wrong password seems to make it hang and you have no choice but to terminate it.

tags: added: manager package software
removed: softwere
Francesca (alioth) wrote :

Confirmed on clean install of Kubuntu 18.04.3.
It seems to be a bug with kdesu rather than muon itself: kdesu freezes if given a wrong password also calling other commands, for example when launching KDE partition manager from the KDE menu.

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