When I close my Mac laptop and it goes to "sleep" the machine more or less shuts down, with minimal drain on battery life, but will come back to life instantly when I open it. It's a great feature. Aside from software updates and the rare crash, I have barely ever turned off my iBook since I bought it.
On my new Vostro A90, I have Snow Leopard up and running. I ran NetbookInstaller 0.8.2 to get the dsdt.aml file installed, and then ran NetbookInstaller 0.8.3 RC4. To my knowledge everything is set correctly in the BIOS.
An approximation of "sleep" works now. I can close the lid and the screen turns off. Then later I can open it and aside from a weird quirk where the screen will instantly come back on, then turn black, then come back on again, it works fine.
However, the machine remains warm while it's asleep and I assume it's running or operating on a higher level than what my Mac is when it's asleep. I really haven't tested it yet, but I can only assume the battery is being drained at a much higher rate than my Mac when it's asleep.
I'm not really complaining, I still think it's amazing that I can get OS X running on this little device to begin with. Also, shutdown/startup times are not long at all, so it wouldn't be much of an issue to just shut it down and restart it...but I'm still curious if this is the best I'm going to get out of the "sleep" function on my Vostro A90. It's very close to what my Mac does, but not exactly the same behavior.
So to get to my point, do I have the sleep function set correctly on my Vostro? Or is this the best I'm going to get? What are your observations?