サスペンドを無効化する方法

Q:
サスペンドを無効化する方法　ubuntu12.04
A:
/etc/polkit-1/localauthority/50-local.d/com.ubuntu.disable-suspend.pkla
[Disable suspend (upower)]
Identity=unix-user:*
Action=org.freedesktop.upower.suspend
ResultActive=no
ResultInactive=no
ResultAny=no
[Disable suspend (logind)]
Identity=unix-user:*
Action=org.freedesktop.login1.suspend
ResultActive=no
ResultInactive=no
ResultAny=no
[Disable suspend when others are logged in (logind)]
Identity=unix-user:*
Action=org.freedesktop.login1.suspend-multiple-sessions
ResultActive=no
ResultInactive=no
ResultAny=no