[Bug 1974097] [NEW] KSystemLog only launches if run from a terminal - attempting to run from the application menu or from KRunner silently fails

[Aaron Rainbolt]

Public bug reported:

Hardware is an HP Z220 SFF Workstation, 256 GB SSD + 1 TB SSD, 32 GB
RAM, UEFI, no secure boot. Testing was done within a Gnome Boxes VM,
SeaBIOS, 4 GB RAM, Kubuntu Kinetic live session.

Steps to reproduce bug:

1: Open the Application Menu.
2: Type "KSystemLog".
3: Click "KSystemLog".
4: Hit Alt+F2 to bring up KRunner.
5: Type "KSystemLog".
6: Press Enter.
7: Open the Application Menu, and click "Konsole".
8: Type "ksystemlog", and press Enter.

Expected result: KSystemLog should launch every time you attempt to run it.
Actual result: KSystemLog only launches when executed from the terminal.

Extra details:

If I run KSystemLog from the terminal, then attempt to open it again
from the Application Menu while KSystemLog is open, the following lines
immediately appear in the logs:

    5/18/22 10:31 PM	systemd	Started KSystemLog - System Log Viewer.
    5/18/22 10:31 PM	sudo	 kubuntu : TTY=pts/3 ; PWD=/home/kubuntu ; USER=root ; COMMAND=/usr  /lib/x86_64-linux-gnu/libexec/kf5/kdesu_stub -
    5/18/22 10:31 PM	sudo	pam_unix(sudo:session): session opened for user root(uid=0) by (uid=999)
    5/18/22 10:31 PM	sudo	 kubuntu : TTY=pts/5 ; PWD=/home/kubuntu ; USER=root ; COMMAND=/usr/lib/x86_64-linux-gnu/libexec/kf5/kdesu_stub -
    5/18/22 10:31 PM	sudo	pam_unix(sudo:session): session opened for user root(uid=0) by kubuntu(uid=999)
    5/18/22 10:31 PM	sudo	pam_unix(sudo:session): session closed for user root

I'm guessing this is probably related to the kdesu bug here:
https://bugs.kde.org/show_bug.cgi?id=452532

ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: ksystemlog 4:22.04.1-0ubuntu1
ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
Uname: Linux 5.15.0-27-generic x86_64
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.470
CurrentDesktop: KDE
Date: Wed May 18 22:23:40 2022
LiveMediaBuild: Kubuntu 22.10 "Kinetic Kudu" - Alpha amd64 (20220518)
SourcePackage: ksystemlog
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ksystemlog (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug kinetic third-party-packages

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https://bugs.launchpad.net/bugs/1974097

Title:
  KSystemLog only launches if run from a terminal - attempting to run
  from the application menu or from KRunner silently fails

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