Re: [Announce] Auto2G: A battery saver script for the N900
 

@MohammadAG
Did consider that originally but wasn't sure if the scripts would ever end and so would nest forever eventually running out of memory. Big lack of Linux knowledge on my part there, hence the cron method.

@nidO, thanks, that's much neater!

Re: [Announce] Auto2G: A battery saver script for the N900
 

If you could make that into a demon with dbus messaging it would be perfect. :)
It might even be more energy efficient because you wouldn't need polling. You could just listen for the "wifi (dis)connect event" from dbus.

Re: [Announce] Auto2G: A battery saver script for the N900
 

I didn't do that because of the hotspot issue. You could automatically connect to a hotspot with a valid IP address, but it wouldn't necessarily be active unless you clicked agree or put your card details in to buy time or logged in with an account.
It would be very annoying if you didn't want to use WiFi in a hotspot area and the phone kept changing your 3G connection to a 2G !

There could be any amount of time between connecting to a hotspot and getting a working connection, hence the polling.

Re: [Announce] Auto2G: A battery saver script for the N900
 

Excellent idea JohnLF! This should help me a ton.

What CPU meter are you using that is shown in the status area?

Re: [Announce] Auto2G: A battery saver script for the N900
 

Would it be possible to switch to 3g when the phone is charging?

Re: [Announce] Auto2G: A battery saver script for the N900
 

cpumem applet - http://maemo.org/packages/view/cpumem-applet/

Re: [Announce] Auto2G: A battery saver script for the N900
 

Very nice idea indeed.
However, just a little warning for those who started using their N900 on WindMobile in Canada. As I had a chance to confirm, N900 relies on the 3G based data connection for voice as well. Switching to 2G turns off the cellular connection on Wind automatically. :(

Re: [Announce] Auto2G: A battery saver script for the N900
 

Works like a champ. The only thing I'd add to your first post is the need to do a chown and chmod to auto2g.sh after you get it where you need it.

Re: [Announce] Auto2G: A battery saver script for the N900
 

In that case you could start polling only if wifi is connected but not usable due to it being blocked.
Even if you want it to keep polling I think it would be nicer as a properly packaged demon, so the noobs can use it too.

Re: [Announce] Auto2G: A battery saver script for the N900
 

Good idea, I'll look into it but out of my level of knowledge here. Any takers on moving this forward to a packaged daemon?

I did think about a GUI for it, that allowed you to select

• change back to 3G or Dual mode
• change the messages shown (no need for localisation issues)
• switching 3G / 2G when charger connected / disconnected

etc. etc.

I may have to have a crash course in Python / Qt :D