In current code base, it uses Alt[1] to active HUD. But it actually uses Alt_L on my machine.
You can show your settings with this command - gconftool-2 -g /apps/compiz-1/plugins/unityshell/screen0/options/show_hud
[1] http://bazaar.launchpad.net/~unity-team/unity/trunk/view/head:/plugins/unityshell/unityshell.xml.in#L47
In current code base, it uses Alt[1] to active HUD. But it actually uses Alt_L on my machine.
You can show your settings with this command - 1/plugins/ unityshell/ screen0/ options/ show_hud
gconftool-2 -g /apps/compiz-
[1] http:// bazaar. launchpad. net/~unity- team/unity/ trunk/view/ head:/plugins/ unityshell/ unityshell. xml.in# L47