Comment 27 for bug 17878

well the fact is that disabling only access times, or only syslogkd, or whatever, yields no results. It's *only* when I disabled them all together that I was able to get some (drive) sleep!

Interestingly enough, the laptop-mode package is not installed on my machine. I would have thought that thing was installed per default if the computer was a laptop. I'll install it and see if it does anything different.