Bug 357609

I've recently upgraded from openSUSE 13.2 to Leap 42.1 and installed the latest KDE Frameworks/Applications from openSUSE OBS:
http://download.opensuse.org/repositories/KDE:/Frameworks5/openSUSE_Leap_42.1/
http://download.opensuse.org/repositories/KDE:/Applications/openSUSE_Leap_42.1/

My PC has an Nvidia card with proprietary drivers, and dual full HD monitors.

It appears that starting any LibreOffice application, maximizing it, then restoring it, then exiting causes the plasma desktop to hang. The mouse cursor is still visible, and responds to mouse movement, however plasma widgets, panel, desktop no longer react to any mouse events. Ctrl-Esc and Alt-F2 don't seem to do anything.

This behaviour is only observed when libreoffice is using the KDE integration (libreoffice-kde4-5.0.2.2-1.2.x86_64). If it is uninstalled, then libreoffice with GTK3 ui works just fine. 

I've tried all the workarounds listed in https://forums.opensuse.org/showthread.php/511086-LibreOffice-5-freezes-system/ (like clearing libreoffice config directory, etc) to no avail. 









$ rpm -qa | egrep "framework|plasma|libreoffice" | sort
frameworkintegration-plugin-5.17.0-85.2.x86_64
libreoffice-5.0.2.2-1.2.x86_64
libreoffice-base-5.0.2.2-1.2.x86_64
libreoffice-base-drivers-mysql-5.0.2.2-1.2.x86_64
libreoffice-branding-upstream-5.0.2.2-1.2.noarch
libreoffice-calc-5.0.2.2-1.2.x86_64
libreoffice-calc-extensions-5.0.2.2-1.2.x86_64
libreoffice-draw-5.0.2.2-1.2.x86_64
libreoffice-filters-optional-5.0.2.2-1.2.x86_64
libreoffice-gnome-5.0.2.2-1.2.x86_64
libreoffice-gtk3-5.0.2.2-1.2.x86_64
libreoffice-icon-theme-breeze-5.0.2.2-1.2.noarch
libreoffice-icon-theme-galaxy-5.0.2.2-1.2.noarch
libreoffice-icon-theme-hicontrast-5.0.2.2-1.2.noarch
libreoffice-icon-theme-mint-5.0.2-1.3.noarch
libreoffice-icon-theme-oxygen-5.0.2.2-1.2.noarch
libreoffice-icon-theme-sifr-5.0.2.2-1.2.noarch
libreoffice-icon-theme-tango-5.0.2.2-1.2.noarch
libreoffice-impress-5.0.2.2-1.2.x86_64
libreoffice-kde4-5.0.2.2-1.2.x86_64
libreoffice-l10n-en-5.0.2.2-1.2.noarch
libreoffice-mailmerge-5.0.2.2-1.2.x86_64
libreoffice-math-5.0.2.2-1.2.x86_64
libreoffice-pyuno-5.0.2.2-1.2.x86_64
libreoffice-share-linker-1-2.2.noarch
libreoffice-templates-en-3.3-15.6.noarch
libreoffice-templates-labels-a4-1.0.1-12.1.noarch
libreoffice-templates-labels-letter-1.0.1-12.1.noarch
libreoffice-templates-presentation-layouts-3.3-12.4.noarch
libreoffice-writer-5.0.2.2-1.2.x86_64
libreoffice-writer-extensions-5.0.2.2-1.2.x86_64
patterns-openSUSE-kde_plasma-20150918-12.1.x86_64
plasma5-addons-5.5.2-74.2.x86_64
plasma5-addons-kimpanel-5.5.2-74.2.x86_64
plasma5-addons-lang-5.5.2-74.2.noarch
plasma5-desktop-5.5.2-128.1.x86_64
plasma5-desktop-branding-openSUSE-13.3-105.2.x86_64
plasma5-desktop-lang-5.5.2-128.1.noarch
plasma5-pa-5.5.2-23.2.x86_64
plasma5-pa-lang-5.5.2-23.2.noarch
plasma5-pk-updates-0.2-6.2.x86_64
plasma5-session-5.5.2-54.1.noarch
plasma5-workspace-5.5.2-158.1.x86_64
plasma5-workspace-branding-openSUSE-13.3-105.2.x86_64
plasma5-workspace-lang-5.5.2-158.1.noarch
plasma5-workspace-libs-5.5.2-158.1.x86_64
plasma5-workspace-wallpapers-5.5.2-50.1.noarch
plasma-framework-5.17.0-92.2.x86_64
plasma-framework-components-5.17.0-92.2.x86_64
plasma-framework-lang-5.17.0-92.2.noarch
plasma-framework-private-5.17.0-92.2.x86_64
plasma-nm5-5.5.2-89.1.x86_64
plasma-nm5-lang-5.5.2-89.1.noarch
plasma-nm5-openconnect-5.5.2-89.1.x86_64
plasma-nm5-openvpn-5.5.2-89.1.x86_64
plasma-nm5-pptp-5.5.2-89.1.x86_64
plasma-nm5-vpnc-5.5.2-89.1.x86_64
python-kde4-plasma-4.14.3-2.11.x86_64


Reproducible: Always

Steps to Reproduce:
1. Start libreoffice writer, double click on the title bar to maximize, click on the File menu
2. Double click on the title bar to un-maximize, click on the File menu again
3. Click on the Exit menu to quit.


Actual Results:  
Plasma hangs and stops reacting to any mouse events.

Expected Results:  
Plasma does not hang after exiting libreoffice writer.

Outputs of "ps -e f" after KDE startup, after libreoffice writer startup (before the hang) and after libreoffice writer exit (after the hang) along with contents of .xsession-errors are attached.