The Mac OS X 10.9 "won't shutdown" (slow shutdown) problem

Since upgrading to Mac OS X 10.9 I’ve experienced the problem other people have reported, where their Mac won’t shutdown, or shuts down very slowly. We had a huge lightning storm roll in a few days ago, and when my 2008 iMac didn’t shut down after three minutes of waiting, I finally had to press and hold the button on the back to force it to shut down.

Since then I’m glad to say that the following series of defaults write commands has helped my iMac to shut down much more quickly:

A Python screensaver for xscreensaver (Linux)

I know remarkably little about Python and GTK, but from the two URLs shown in the source code below I was able to piece together a working, “Well, world” screensaver. Well, calling it a screensaver is a stretch, because what it will really do is burn the characters “Hello, world” into your monitor; but at least I cracked the code on how to get this started.

To try this on your own Linux system running xscreensaver, first save the following source code somewhere. I’ll assume that you’ve saved it to /home/al/


I’ll write more about this as time goes on, but I’ve finished the first round of software (and hardware) development on my “AlRadio” project. This project lets me play local FM radio stations, online radio streams, recorded radio streams, and podcasts, all from a little Raspberry Pi (RPI) computing system.

First, here’s a short video of my RPI Radio in action:

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