Ubuntu hack for waking up your monitor

Sometimes, when I close the lid of my Dell E1505 laptop and open it again, the monitor doesn't resume and stays black instead. Today, I discovered a little hack to get the monitor working again instead of just doing a hard reboot. Press [Fn] + [Esc / Stand By] which suspends the computer, close the lid, open it, and bam...the monitor works and it decreases the chances of corrupt system files.