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The application make the color reversed when i type super+m. I don't know what 's its name, and how can i make it start automatically when i log in?

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The application you are using is called compiz. Settings can most easily be adjusted by installing the compiz config settings manager sudo apt-get install compizconfig-settings-manager, find it in System->Preferences, although this will not be able to do what you want. The plugin that reverses the color is called Negative (in the accessibility section of ccsm). A possible method to auto-call a plugin on startup is described here: http://ubuntuforums.org/showpost.php?p=9351609&postcount=8 (although that seems a bit involved)

(From comment) This should do it:

dbus-send --type=method_call --dest=org.freedesktop.compiz /org/freedesktop/compiz/neg/allscreens/screen_toggle_key org.freedesktop.compiz.activate string:'root' int32:$(xwininfo -root | grep id: | awk '{ print $4 }')
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This should do it: dbus-send --type=method_call --dest=org.freedesktop.compiz /org/freedesktop/compiz/neg/allscreens/screen_toggle_key org.freedesktop.compiz.activate string:'root' int32:$(xwininfo -root | grep id: | awk '{ print $4 }') – ændrük Mar 8 '11 at 15:00

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