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-   -   Hibernation / Supsend to Disk (https://talk.maemo.org/showthread.php?t=33682)

www.rzr.online.fr 2009-11-04 10:44

Re: Hibernation / Supsend to Disk
 
@Matan: +1 interessing experience, if someone can do it on a brand new battery / device

maybe the boot can be optimised too , i am thinking about keeping the light low as soon as possible ...

fanoush 2009-11-11 11:32

Re: Hibernation / Supsend to Disk
 
Quote:

Originally Posted by Matan (Post 361648)
The results of the experiment are that the battery managed 44 reboot cycles. If we take the official 240 hours standby time, it means that a reboot cycle is equivalent to about 5.5 hours of standby.

I had one spare N810 sitting idle for couple of months and I did like 4 tests and with clean firmware after fully charged it lasted about 30 days. It was not in offline mode, just not connected to wi-fi, keyboard locked. I tested it once per few days to see if it is still alive (unlock to see display for few seconds and locked again). Depending on how often I checked it it was like 28,29,30,31 days.

wotevah 2010-08-04 04:12

any news on suspend mode ?
 
I was wondering if there's been any progress on implementing suspend mode. I'd like it for flights, where you have to waste battery turning it off and on, when the next recharge may not be for a long time.

wotevah 2010-08-12 04:18

suspend to memory "howto"
 
Found an easy way to suspend to memory. It's sudo sh -c "echo mem > /sys/power/state", to add in a queenbee script widget. The phone suspends to memory immediately and can wake up instantly on power or lock or camera shutter or keyboard slide (not my choice but hey). Yeah, that means you have to use sleep in terminal mode so you have time to close the keyboard, otherwise it wakes up when you do.

There are still a few problems. One, unless it's already in offline mode, there is a good chance the phone will wake up quickly due to external (radio, wifi) events because only the CPU is asleep not the peripherals. So it's a good idea to go offline first to shut those off. Two, the phone wakes up with messed up clock (clock stops when it goes to sleep) and even automatic update doesn't fix it.

pulketo 2012-01-11 06:23

Re: Hibernation / Supsend to Disk
 
Quote:

Originally Posted by GeneralAntilles (Post 361098)
Video playback does not use the same amount of power as bootup. Either way, I'm more inclined to trust the kernel engineers at Nokia who live and breath this stuff than some random estimates on a web forum. :)

trolling mode on?


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