Comment 10 for bug 1770044

Hello.

I have encoutered this bug today.

Confirming that the removing of print-manager solves it.
In case it helps, I printed today to a non-existing printer. (Or not connected now)
This might be the reason.

System info:
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$ uname -a
Linux xxxxxx 4.15.0-32-generic #35-Ubuntu SMP Fri Aug 10 17:58:07 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
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$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04.1 LTS"
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$ cat /var/log/syslog | grep libkcups
Aug 23 19:09:40 xxxx kernel: [ 21.796551] plasmashell[2806]: segfault at 0 ip 00007f06228bf556 sp 00007ffda5944a00 error 4 in libkcupslib.so[7f0622883000+55000]
Aug 23 19:11:58 xxxx kernel: [ 159.541136] plasmashell[3142]: segfault at 0 ip 00007fb9f90eb556 sp 00007ffd1f9dc550 error 4 in libkcupslib.so[7fb9f90af000+55000]
Aug 23 19:12:24 xxxx kernel: [ 185.479028] plasmashell[3190]: segfault at 0 ip 00007fe7ae4b3556 sp 00007ffddf141da0 error 4 in libkcupslib.so[7fe7ae477000+55000]
Aug 23 19:13:20 xxxx kernel: [ 241.740921] plasmashell[3907]: segfault at 0 ip 00007f90b4e6e556 sp 00007fff15942bc0 error 4 in libkcupslib.so[7f90b4e32000+55000]
Aug 23 19:17:15 xxxx kernel: [ 21.434726] plasmashell[2561]: segfault at 0 ip 00007f679fd09556 sp 00007ffcfd0279a0 error 4 in libkcupslib.so[7f679fccd000+55000]
Aug 23 19:25:00 xxxx kernel: [ 486.744808] plasmashell[19246]: segfault at 0 ip 00007f35a96d5556 sp 00007fff5621e720 error 4 in libkcupslib.so[7f35a9699000+55000]
Aug 23 19:30:31 xxxx kernel: [ 817.724261] plasmashell[23856]: segfault at 0 ip 00007fbc4b29d556 sp 00007ffe87f7e930 error 4 in libkcupslib.so[7fbc4b261000+55000]
Aug 23 19:31:22 xxxx kernel: [ 868.486032] plasmashell[24483]: segfault at 0 ip 00007f10fc9b2556 sp 00007ffe7b7f9890 error 4 in libkcupslib.so[7f10fc976000+55000]
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$ dpkg -l | egrep "plasma"
rc kdeconnect-plasma 1.3.1-0ubuntu0.1 all Transitional package (kdeconnect-plasma -> kdeconnect)
ii kdeplasma-addons-data 4:5.12.6-0ubuntu0.1 all locale files for kdeplasma-addons
ii libkdeclarative5 4:4.14.38-0ubuntu3 amd64 declarative library for plasma
ii libkf5plasma5:amd64 5.44.0-0ubuntu3 amd64 Plasma Runtime components
ii libkf5plasmaquick5:amd64 5.44.0-0ubuntu3 amd64 Plasma Runtime components
ii libplasma-geolocation-interface5 4:5.12.6-0ubuntu0.1 amd64 Plasma Workspace for KF5 library
ii libplasma3 4:4.14.38-0ubuntu3 amd64 Plasma Library for the KDE Platform
ii plasma-dataengines-addons 4:5.12.6-0ubuntu0.1 amd64 additional data engines for Plasma
ii plasma-desktop 4:5.12.6-0ubuntu0.1 amd64 Tools and widgets for the desktop
ii plasma-desktop-data 4:5.12.6-0ubuntu0.1 all Tools and widgets for the desktop data files
ii plasma-discover 5.12.6-0ubuntu0.1 amd64 Discover software management suite
ii plasma-discover-common 5.12.6-0ubuntu0.1 all Discover software manager suite (common data files)
rc plasma-discover-private 5.6.2-1ubuntu1.1 amd64 Private runtime libraries for the Discover suite
ii plasma-framework 5.44.0-0ubuntu3 amd64 Plasma Runtime components
ii plasma-integration 5.12.6-0ubuntu0.1 amd64 Qt Platform Theme integration plugins for KDE Plasma
ii plasma-look-and-feel-org-kde-breezedark-desktop 4:5.12.6-0ubuntu0.1 all Dark Breeze look-and-feel for Plasma
ii plasma-nm 4:5.12.6-0ubuntu0.1 amd64 Plasma5 networkmanager library.
ii plasma-pa 4:5.12.6-0ubuntu0.1 amd64 Plasma 5 Volume controller
ii plasma-runners-addons 4:5.12.6-0ubuntu0.1 amd64 additional runners for Plasma 5 and Krunner
ii plasma-scriptengine-javascript 4:17.08.3-0ubuntu1 amd64 JavaScript script engine for Plasma
ii plasma-vault 5.12.6-0ubuntu0.1 amd64 Plasma applet and services for creating encrypted vaults
ii plasma-wallpapers-addons 4:5.12.6-0ubuntu0.1 amd64 additional wallpaper plugins for Plasma 5
ii plasma-widgets-addons 4:5.12.6-0ubuntu0.1 amd64 additional widgets for Plasma 5
ii plasma-workspace 4:5.12.6-0ubuntu0.1 amd64 Plasma Workspace for KF5
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