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[solved] usb unplug no deep sleep figured out

OP ultravorx

25th February 2012, 03:28 PM   |  #1  
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This morning i ran a quick test on the deep sleep issue some of us are having.

If you unplug the usb charger from the phone with the screen off. It will not go into deep sleep.

However, if you turn the phone on, then unplug the usb charger from the phone it will go into deep sleep.

I tried this combo multiple times and it worked for me everytime.

Granted it not the true rootcause of the issue, but its a very easy workaround.


Frank

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25th February 2012, 03:38 PM   |  #2  
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In a quick test with the OC kernel, this may just be true!

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25th February 2012, 03:58 PM   |  #3  
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nice find! i will confirm this later with mine. thinking back, when i unplug from my car charger i do turn the screen off first, so this is promising.
25th February 2012, 07:40 PM   |  #4  
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Mine has inexplicably and periodically failing to go into deep sleep, which is fixed by a restart, so this is interesting to me. I think there may be more than one trigger. I unplugged mine from the charger this morning with the screen on and afterward it wouldn't go into deep sleep. I don't know, however, if it had started doing that prior.
26th February 2012, 03:16 PM   |  #5  
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Well, I tried out this method again this morning. Turning on the screen, unlocking it before unplugging it, and reset the cpu spy.

It is going into deep sleep!!

I don't know why turning the screen makes it deep sleep, but it seems like a a clue the devs can use to figure this out!


Frank
26th February 2012, 05:42 PM   |  #6  
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Thanks OP! Ran a charge via USB to a dock (that always voided deep sleep in the past), charged to 100% last night. This morning turned on the screen before unplugging, and BAM, deep sleep! Great find!

Edit: Stock ROM with Da_G OC kernel
26th February 2012, 06:25 PM   |  #7  
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Someone please explain deep sleep to me and its benefits.

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27th February 2012, 12:52 AM   |  #8  
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Quote:
Originally Posted by Mantoss

Someone please explain deep sleep to me and its benefits.

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Deep sleep relates to the SPU State when the screen is off. The issue we are seeing is the CPU would run at 192 to 384 instead of Deep Sleep. This makes a considerable difference for Battery Life. CPU Spy is an app that can monitor.

No Deep Sleep 14 hours of battery life
Deep Sleep 22 hours of battery life

Hope this helps.
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27th February 2012, 12:59 AM   |  #9  
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Well as it seems the ones that made those mods have fell off the note, no words or fix updates from no one, and thus it begins

Big Dogg Infuse I997 ZeusB5 ICS!
27th February 2012, 01:02 AM   |  #10  
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What do you mean?

Quote:
Originally Posted by bignate78

Well as it seems the ones that made those mods have fell off the note, no words or fix updates from no one, and thus it begins

Big Dogg Infuse I997 ZeusB5 ICS!



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