Task Manager Widget on secondary monitor not minimising application when primary minor running a full window application

[mcnaz]

This is related to kwin - kde-window-manager - or so I hope.

Description of Issue:

Running Kubuntu 12.04 with a dual monitor setup - /etc/X11/xorg.conf shown later. Primary monitor 1680 x 1050 on the right and secondary monitor 1280 x 1080 on the left

Installed VirtualBox 4.1.8 - 4.1.8-dfsg-2 - installed from Muon.

When VirtualBox is running on the primary monitor and is maximised (via HOST+F), the following issues arise:

1. Any applications shown on the secondary monitor's Panel via Task Manager widget cannot be minimised by clicking on the applications tab. Existing minimised applications on this monitor can be restored by clicking on their respective tab but subsequent clicks on the tab does not re-minimise the application. Applications on the secondary monitor can only by minimised by clicking on Task Manager tabs when VirtualBox is not in Full Screen mode (VB Host + F)

2. Kickoff Application Launcher menu (present on the primary monitor only) is rendered under the VirtualBox VM when the VM is in Full Screen. A keyboard shortcut is assigned to display the Kickoff menu. The menu renders fine when VirtualBox VM is not maximised. When the VM is in fullscreen, Kickoff keyboard shortcut does not display the menu - it is only briefly visible when the Kickoff shortcut menu renders its slidedown closing animation. Kickoff shortcut is executed outside of the VB VM by clicking on an empty space on the secondary monitor

3. Applications cannot be dragged from the secondary monitor to the primary monitor whilst a VirtualBox VM is in fullscreen mode on the primary monitor. Applications are rendered under the fullscreen VM.

Expected Behaviour:

1. Application can be minimised/maximised on the secondary monitor irrespective of a full screen application running on the primary monitor

2. Kickoff menu to render above all content on the primary monitor when kickoff keyboard shortcut is invoked.

3. Dragged application windows from the secondary monitor should render on top of the active application window on the primary monitor.

:$ lsb_release -rd
Description: Ubuntu precise (development branch)
Release: 12.04

~$ apt-cache policy kde-window-manager
kde-window-manager:
  Installed: 4:4.8.1-0ubuntu2
  Candidate: 4:4.8.1-0ubuntu2
  Version table:
 *** 4:4.8.1-0ubuntu2 0
        500 http://gb.archive.ubuntu.com/ubuntu/ precise/main i386 Packages
        100 /var/lib/dpkg/status

$ apt-cache policy virtualbox-qt
virtualbox-qt:
  Installed: 4.1.8-dfsg-2
  Candidate: 4.1.8-dfsg-2
  Version table:
 *** 4.1.8-dfsg-2 0
        500 http://gb.archive.ubuntu.com/ubuntu/ precise/universe i386 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: kde-window-manager 4:4.8.1-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic-pae 3.2.9
Uname: Linux 3.2.0-18-generic-pae i686
NonfreeKernelModules: nvidia
ApportVersion: 1.94.1-0ubuntu2
Architecture: i386
Date: Tue Mar 13 12:39:10 2012
InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120228.1)
ProcEnviron:
 LANGUAGE=en_GB:en
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: kde-workspace
UpgradeStatus: No upgrade log present (probably fresh install)

[mcnaz (mcnazar)]

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 295.20 (buildd@rothera) Sat Feb 18 09:49:17 UTC 2012

Section "ServerLayout"
    Identifier "Layout0"
    Screen 0 "Screen0" 0 0
    InputDevice "Keyboard0" "CoreKeyboard"
    InputDevice "Mouse0" "CorePointer"
    Option "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "InputDevice"
    # generated from default
    Identifier "Mouse0"
    Driver "mouse"
    Option "Protocol" "auto"
    Option "Device" "/dev/psaux"
    Option "Emulate3Buttons" "no"
    Option "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier "Keyboard0"
    Driver "kbd"
EndSection

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier "Monitor0"
    VendorName "Unknown"
    ModelName "AOC LM720/LM720A"
    HorizSync 30.0 - 83.0
    VertRefresh 55.0 - 75.0
    Option "DPMS"
EndSection

Section "Device"
    Identifier "Device0"
    Driver "nvidia"
    VendorName "NVIDIA Corporation"
    BoardName "GeForce 8800 GTS"
EndSection

Section "Screen"
    Identifier "Screen0"
    Device "Device0"
    Monitor "Monitor0"
    DefaultDepth 24
    Option "TwinView" "1"
    Option "TwinViewXineramaInfoOrder" "DFP-1"
    Option "metamodes" "CRT: 1280x1024_75 +0+0, DFP: 1680x1050_60 +1280+0"
    SubSection "Display"
        Depth 24
    EndSubSection
EndSection

[Rohan Garg (rohangarg)]

Hi
Would it be possible for you to reproduce this on 14.04 ( our next LTS release )?

[Launchpad Janitor (janitor)]

[Expired for kde-workspace (Ubuntu) because there has been no activity for 60 days.]

[René Fleschenberg (rene.f)]

This bug still exists in 14.04, and to the best of my knowledge, it still exists in the latest upstream KDE version.