Laptop: Fujitsu-Siemens Amilo Pi-3525
When my laptop is plugged in and I close the lid, it goes into S1 sleep. This means that there is still:
- fan noise (annoying when trying to sleep at night)
- lots of power consumed (so if I then unplug the laptop and toss it in the bag, by the time I'm at school it's already drained and beeping ominously).
What I want is S3 sleep, it solves both problems.
I've found a roundabout way to go into S3 sleep:
- Unplug laptop
- Close lid (or click Sleep in Start menu)
- Plug laptop back in if needed
The question: How do I force Windows to use always use S3 sleep when I close the lid?
One thing I've tried is:
dumppo admin minsleep=s3 (dumppo from here)
Afterwards running just
dumppo admin confirms that minsleep has been set, but closing the lid still goes into S1. Also, after a reboot, minsleep is reset to s1. I think dumppo is incompatible with Vista... MCE Standby Tool was recommended as a Vista-compatible alternative to dumppo, but it doesn't have any effect either.
I looked in the BIOS settings, but there are no settings relating to ACPI sleeps/suspends there.