Comment 59 for bug 278112

For me it fixes the bug from the description : "the screen starts to fade, but then immediately returns to the desktop instead of starting the screensaver".

(Note that I still have just a blank screen rather than a specific screensaver if running on battery, but this is not what this bug is about, and I tend to consider this a feature rather than a bug).

For those who still report failure with xorg-server 2:1.5.2-2ubuntu1 installed, maybe you're experiencing a slightly different bug, that might warrant a separate bug report. In particular, I know Oliver could workaround the issue by setting xset -dpms in a terminal window, which I couldn't.