I had the same problem. I am fairly certain the upgrade to systemsettings caused it. The problem can be temporarily resolved by downgrading to systemsettings/stable. I am holding the old version for now.
On Sat, 25 Jul 2015 10:12:16 +0100 Tony Green <dddeb...@web-brewer.co.uk> wrote: > Package: systemsettings > Version: 4:5.3.2-2 > Severity: important > > Dear Maintainer, > > * What led up to the situation? > Installed systemsettings 4:5.3.2-2 as part of routine installing of > available updates. It appears that systemsettings for KDE5 has been > installed in place of the correct version as /usr/bin/systemsettings > has been replaced by /usr/bin/systemsettings5. > > * What exactly did you do (or not do) that was effective (or > ineffective)? > Launched systemsettings from icon. > > * What was the outcome of this action? > Only four options showing on systemsettings - Application Style, > Applications, Network settings, Display & Monitor. > In addition, these options open incorrect configuration settings: > Application style - opens "Widget style of GNOME/GTK applications". > Applications - opens "Configure file associations" > Network settings - opens "SSL Versions & Certificates" > Display & Monitor - crashes systemsettings. The following error > messages are generated: > > ----------------------------------------------- > Couldn't start kded5 from org.kde.kded5.service: > QDBusError("org.freedesktop.DBus.Error.ServiceUnknown", "The name > org.kde.kded5 was not provided by any .service files") , falling back > to running kbuildsycoca5 > kf5.kservice.sycoca: Trying to open ksycoca from > "/home/tony/.cache/ksycoca5" LOAD > kscreen: launcherDataAvailable: "org.kde.KScreen.Backend.XRandR" > kscreen: Launcher finished with exit code 1 , status 0 > kscreen: Service for requested backend already running > file:///usr/share/kcm_kscreen/qml/main.qml:20:1: module > "QtQuick.Controls" is not installed > import QtQuick.Controls 1.1 as Controls > ^ > file:///usr/share/kcm_kscreen/qml/main.qml:21:1: module > "org.kde.plasma.core" is not installed > import org.kde.plasma.core 2.0 as PlasmaCore > ^ > file:///usr/share/kcm_kscreen/qml/main.qml:22:1: module > "org.kde.kquickcontrols" is not installed > import org.kde.kquickcontrols 2.0 > ^ > file:///usr/share/kcm_kscreen/qml/main.qml:19:1: module "QtQuick" is > not installed > import QtQuick 2.1 > ^ > file:///usr/share/kcm_kscreen/qml/main.qml:20:1: module > "QtQuick.Controls" is not installed > import QtQuick.Controls 1.1 as Controls > ^ > file:///usr/share/kcm_kscreen/qml/main.qml:21:1: module > "org.kde.plasma.core" is not installed > import org.kde.plasma.core 2.0 as PlasmaCore > ^ -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org