Comment 3 for bug 1890236

On d745 or box this issue occurred on, i used `killall` to kill partitionmanager. It closed, then I ran (hoping to get more detail, or repeat the issue)

lubuntu@lubuntu:~$ partitionmanager
Could not load plugin for core backend "" : "The shared library was not found."
Loaded backend plugin: "pmsfdiskbackendplugin"
Icon theme "elementary" not found.

but unexpected no kde partition manager opened (a flash did occur, brief and about correct size for partitionmanager windwo, but it was just a quick flash). Attempting to re-start it again from terminal had the same result.

I didn't see anything helpful added to `dmesg`, however `ournalctl` had the following which maybe related

Aug 04 05:30:23 lubuntu dbus-daemon[1059]: [system] Rejected send message, 1 matched rules; type="method_call", sender=":1.67" (uid=999 pid=3322 comm="partitionmanager " label="unconfined") interface="org.freedesktop.DBus.Introspectable" member="Introspect" error name="(unset)" requested_reply="0" destination="org.kde.kpmcore.helperinterface" (uid=0 pid=1864 comm="/usr/lib/kauth/libexec/kpmcore_externalcommand " label="unconfined")
Aug 04 05:31:59 lubuntu dbus-daemon[1059]: [system] Rejected send message, 1 matched rules; type="method_call", sender=":1.68" (uid=999 pid=3330 comm="partitionmanager " label="unconfined") interface="org.freedesktop.DBus.Introspectable" member="Introspect" error name="(unset)" requested_reply="0" destination="org.kde.kpmcore.helperinterface" (uid=0 pid=1864 comm="/usr/lib/kauth/libexec/kpmcore_externalcommand " label="unconfined")
Aug 04 05:33:39 lubuntu kernel: perf: interrupt took too long (3145 > 3141), lowering kernel.perf_event_max_sample_rate to 63500