ahunity
DISABLE GLOBAL MENU BAR (UMB)
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sudo apt-get autoremove appmenu-gtk appmenu-gtk3 appmenu-qt
# logout and back in
MOUSE FOCUS IN 12.10 and later
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gsettings set org.gnome.desktop.wm.preferences focus-mode 'sloppy'
# or replace 'sloppy' with 'mouse' or 'click'
# click - click to focus
# mouse - focus on window when mouse enters; unfocus when mouse leaves
# sloppy - focus on window when mouse enters
gsettings set org.gnome.desktop.wm.preferences raise-on-click false
gsettings set org.gnome.desktop.wm.preferences auto-raise false
gsettings set org.gnome.desktop.wm.preferences auto-raise-delay 500
# delay is in msec and only matters if auto-raise is true.
# in 13.04 and later can instead use unity-tweak-tool
# Click "Workspace-Settings" button
# Click "Additional" tab
# set stuff
MOUSE FOCUS IN 12.04
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sudo apt-get install gconf-editor
gconf-editor
# Under matacity->general
# set focus_mode to mouse (or sloppy)
# disable "raise on click"
# disable "auto-raise"
# or set "raise-delay"
# can instead use gnome-tweak-tool
# Choose "Windows" section
# Set "Window focus mode"