[systemsettings] [Bug 336221] New: Unable to open the Desktop Effects KCM - window content freezes

[alexander.ganster at 5-o-clock.net]

https://bugs.kde.org/show_bug.cgi?id=336221

            Bug ID: 336221
           Summary: Unable to open the Desktop Effects KCM - window
                    content freezes
    Classification: Unclassified
           Product: systemsettings
           Version: unspecified
          Platform: Kubuntu Packages
               URL: http://imagebin.ca/v/1PtUEsj4xSIl
                OS: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: alexander.ganster at 5-o-clock.net

When trying to open the Desktop Effects settings the content of the System
Settings window freezes and it is not possible to configure desktop effects as
can be seen in the picture: http://imagebin.ca/v/1PtUEsj4xSIl  - However it's
possible to click the "Overview" button in the top left corner to get back.

The following output can be seen on the console when that happens:

~ ❯❯❯ systemsettings                                                           
                                                                              
⏎
"Theme tree: (Oxygen)" 
Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 14: reading
configurations from ~/.fonts.conf is deprecated. please move it to
/home/alex/.config/fontconfig/fonts.conf manually
Shortcut for KAction  "quit_action" "&Quit" set with QShortcut::setShortcut()!
See KAction documentation. 
Shortcut for KAction  "options_configure" "Configure" set with
QShortcut::setShortcut()! See KAction documentation. 
Shortcut for KAction  "searchText" "" set with QShortcut::setShortcut()! See
KAction documentation. 
Shortcut for KAction  "help_contents" "System Settings &Handbook" set with
QShortcut::setShortcut()! See KAction documentation. 
Shortcut for KAction  "help_whats_this" "What's &This?" set with
QShortcut::setShortcut()! See KAction documentation. 
Trying to open ksycoca from "/home/alex/.cache/ksycoca5"
Shortcut for KAction  "go_back" "Overview" set with QShortcut::setShortcut()!
See KAction documentation. 


file:///usr/share/kwincompositing/qml/main.qml:42:5: Type EffectView
unavailable 
         EffectView{ 
         ^
file:///usr/share/kwincompositing/qml/EffectView.qml:155:27: Type Effect
unavailable 
                     delegate: Effect{ 
                               ^
file:///usr/share/kwincompositing/qml/Effect.qml:124:13: Type Video unavailable 
                 Video { 
                 ^
file:///usr/share/kwincompositing/qml/Video.qml:24:1: module "QtMultimedia" is
not installed 
     import QtMultimedia 5.0 as Multimedia 
     ^
QObject::connect: Cannot connect (null)::changed() to
KWin::Compositing::EffectView::changed()
QObject::connect: Cannot connect (null)::implicitWidthChanged() to
KWin::Compositing::EffectView::slotImplicitSizeChanged()
QObject::connect: Cannot connect (null)::implicitHeightChanged() to
KWin::Compositing::EffectView::slotImplicitSizeChanged()


I'm using Kubuntu Utopic with Plasma 5 packages (Next PPA). 

System Settings
Version 4.97.0
Using KDE Frameworks 4.100.0

If you need any other information don't hesitate to ask.

Thank you, alex

Reproducible: Always

Steps to Reproduce:
1. Start "System Settings"
2. Click on "Desktop Effects"
Actual Results:  
Desktop Effects KCM is not displayed correctly

Expected Results:  
Desktop Effects KCM is displayed correctly and user is able to change its
settings

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