It is likely that the key generates two key codes (Windows key + P) and the windows key triggers the Unity launcher.
Personally I found that Super+P key combination for switching the video output no longer works in 12.04. It will be very appreciated if anyone can review the attached patch, and it fixes for me. A g-s-d package with the patch is uploaded to https://launchpad.net/~lexical/+archive/gsd for testing too. ** Patch added: "mod4_modifier_videoswitch.patch" https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/950160/+attachment/3148799/+files/mod4_modifier_videoswitch.patch ** Changed in: gnome-settings-daemon (Ubuntu) Importance: Undecided => High ** Tags added: blocks-hwcert-enablement -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/950160 Title: Keyboard function key to switch between monitors no more works To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/950160/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs