One possible fix for a Mac that won't sleep its display

Dec 18, '09 07:30:01AM

Contributed by: n8gray

A little while back i started noticing that my MacBook Pro's display wasn't going to sleep. My Energy Saver settings were configured to put the display to sleep after 15 minutes, but it wasn't happening, even after hours of idle time.

After quite a bit of hunting and head scratching, I finally figured out what was going on. I'd been working on the website for my iPhone game (HexaLex), and I'd opened the Convertbot website in a Safari tab as a source of inspiration.

The Convertbot site has an embedded QuickTime movie demonstrating their user interface. It turns out that this QuickTime movie was preventing the display from sleeping, even though it wasn't in the frontmost tab. Closing that tab solved the problem.

So if your Mac's display isn't sleeping, be sure to check your browser tabs for embedded movies!

Comments (4)


Mac OS X Hints
http://hints.macworld.com/article.php?story=20091209192837129