Hibernate mode? - Shield Q&A

For the portable gaming device fast boot is a must.
I guess sleep mode will drain the battery anyway and pretty fast...
Power off/on take the time.
There is no hibernate mode like on PSP?
Also, can I put my shield to its case when it's in sleep mode?
Thanks

sf3 said:
For the portable gaming device fast boot is a must.
I guess sleep mode will drain the battery anyway and pretty fast...
Power off/on take the time.
There is no hibernate mode like on PSP?
Also, can I put my shield to its case when it's in sleep mode?
Thanks
Click to expand...
Click to collapse
I've tested sleep mode once
Full battery, with lid closed and nothing running, will survive for almost 2-1/2 days.
Music playing with lid closed is just over 30 hours
Bunch of apps running in background and in sleep will be just under 20 hours

donno exactly what you are looking for because with native deep sleep (lid closed) I get about 11 days of occasional use as a tablet. all my apps run normally in the background (I mean I don t force close what I use; I use it normally and let it manage my RAM as it wants)... practically it doesn't drain anything as long as it is lid closed and with no app is hanged on my processor in the background (when it happens, I can see it with batterystats and a restart solves it -it's an OS, it's not perfect, but the iteration on the shield it;s pretty close )
normal gaming (my habits), watching TV series on the go, some GPS and some internet and I get 1-2 days... battery capacity and management are right on the shield..!

Related

[Q] How to increase standby time

Does anyone know what are the tips and tricks to increase standby time?
ixus75 said:
Does anyone know what are the tips and tricks to increase standby time?
Click to expand...
Click to collapse
Turn on airplane mode and make sure no apps are running in the background.
My standby time is fantastic...
The fact that this tablet does multi-tasking is both a blessing and a curse. When tethering via bluetooth, it doesn't die even if you're not using it. I left mine connected to my iphone at night and the next morning, both the tablet and the phone are discharged. I'm sure that there's a setting somewhere that will kill these processes after n minutes of inactivity but for now, make sure your connection is off (Airplane mode) and just kill all processes using the Advanced task killer.
deymayor said:
The fact that this tablet does multi-tasking is both a blessing and a curse. When tethering via bluetooth, it doesn't die even if you're not using it. I left mine connected to my iphone at night and the next morning, both the tablet and the phone are discharged. I'm sure that there's a setting somewhere that will kill these processes after n minutes of inactivity but for now, make sure your connection is off (Airplane mode) and just kill all processes using the Advanced task killer.
Click to expand...
Click to collapse
hmm I have bluetooth tether on 24/7 and it barely drains anything... odd.
This might seem extreme, but I turn mine off if I know I won't be using it for several hours or more. Power-up is pretty quick when I do need to use it. I know it's not the ideal solution, but it has helped me a lot. Now it last for several days between charges instead of a day or so.

[Q] How do you make the battery life better on this

I have to charge my phone 2 or 3 times a day any recommendations on how to make my battery life longer that are simple and easy
Jawdude said:
I have to charge my phone 2 or 3 times a day any recommendations on how to make my battery life longer that are simple and easy
Click to expand...
Click to collapse
I'm a truck driver and I'm a heavy user.
I did too before I made the changes below. These all work with the Stock Rom.
1. Installed No Lock (so that I don't have to swipe the screen to unlock, just push the power button)
2. Set screen to turn off in 30 seconds.
3. Installed Brightness Widget (allows changing the brightness from the home screen
4. Installed Screen Filter (lets me really darken my screen at night.
Try those and see how you do.
5. I then flashed the Infused Rom (I now get up to 10-14 hours)
Jawdude said:
I have to charge my phone 2 or 3 times a day any recommendations on how to make my battery life longer that are simple and easy
Click to expand...
Click to collapse
Custom kernal and rom
Running refused and infusion 1.8 rom and I get 14 hours with heavy data use
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
Also, Turn off GPS and Wifi when you're not using them.
Battery
After much experimenting and monitoring of battery use I find that the biggest drain is the screen display, so go to settings-->display-->brightness and lower the screen brightness as low as you comfortably can. Also when you you are not using the phone make sure the screen is off, I have trained myself to automatically hit the power button every time I put down the phone. If you listen to music through your phone make sure the settings on your music players allow the phone to play when the screen is off and turn the screen off while it plays.
GPS also drains the battery, so I keep it turned off when I don't use the Nav. When I use the Nav I know the battery will drain at a rapid pace, nothing you can do there, even if I have the phone plugged in to car power while using Nav it still drains the battery! Drains slower than unplugged navigating but still drains.
If your watching videos then your S.O.L. there's really nothing you can do that will increase battery life enough to make a difference during video playback.
I get 10-12 hours with regular use and stock rom. Worst was 8 hours best was 24.
Thanks for all the advice this has really helped my battery
Truckerglenn said:
I'm a truck driver and I'm a heavy user.
3. Installed Brightness Widget (allows changing the brightness from the home screen
There was a recent post that showed a shortcut for changing the screen brightness from the homescreen without any additional software. First, turn off auto brightness. Second, tap and hold the menu bar at the top. Third, slide left to reduce the screen brightness and right to increase screen brightness.
Click to expand...
Click to collapse
menzoom said:
After much experimenting and monitoring of battery use I find that the biggest drain is the screen display, so go to settings-->display-->brightness and lower the screen brightness as low as you comfortably can. Also when you you are not using the phone make sure the screen is off, I have trained myself to automatically hit the power button every time I put down the phone. If you listen to music through your phone make sure the settings on your music players allow the phone to play when the screen is off and turn the screen off while it plays.
GPS also drains the battery, so I keep it turned off when I don't use the Nav. When I use the Nav I know the battery will drain at a rapid pace, nothing you can do there, even if I have the phone plugged in to car power while using Nav it still drains the battery! Drains slower than unplugged navigating but still drains.
If your watching videos then your S.O.L. there's really nothing you can do that will increase battery life enough to make a difference during video playback.
I get 10-12 hours with regular use and stock rom. Worst was 8 hours best was 24.
Click to expand...
Click to collapse
How does it drain your battery when its plugged into the car? I have never seen that on any cell phone. That my friend is messed up if true.
reissy said:
How does it drain your battery when its plugged into the car? I have never seen that on any cell phone. That my friend is messed up if true.
Click to expand...
Click to collapse
It seems that Samsung ****ed up and included phone CPU/screen/etc usage when measuring battery charge current.
This means that the 600 mA stock battery charge current limit isn't just going to the battery, it's split between battery/screen/CPU. If screen/CPU/etc go above 600 mA (Navigation at full brightness seems to be the most common way), battery starts draining.
It also means that unless there's something I'm missing (which I could be since the MAX8998 datasheet is super-ultra-secret), our phone isn't going to be able to do proper charge termination - if the screen is on/CPU is running, it will cause a falsely high battery charge current reading, which will cause charging to fail to terminate.
Juice defender
I found that juice defender helped my battery and i just use the free version it's a great app
I used Iphone 3g 3gs 4. None of them drain battery like this one. First time use Android phone and getting a bit disappointed of this phone. It's draining 2% every 5 mins and im using stock Rom.
Sent from my SAMSUNG-SGH-I997 using XDA App
Install a ROM. Infused v2 nearly doubled my screen-on battery life and tripled my screen-off battery life.
sweetboy02125 said:
I used Iphone 3g 3gs 4. None of them drain battery like this one. First time use Android phone and getting a bit disappointed of this phone. It's draining 2% every 5 mins and im using stock Rom.
Sent from my SAMSUNG-SGH-I997 using XDA App
Click to expand...
Click to collapse
That's excessive... Rogue app maybe?
ptgptg said:
Truckerglenn said:
I'm a truck driver and I'm a heavy user.
3. Installed Brightness Widget (allows changing the brightness from the home screen
There was a recent post that showed a shortcut for changing the screen brightness from the homescreen without any additional software. First, turn off auto brightness. Second, tap and hold the menu bar at the top. Third, slide left to reduce the screen brightness and right to increase screen brightness.
Click to expand...
Click to collapse
Thanks I never new that
Sent from my SAMSUNG-SGH-I997R using XDA Premium App
Click to expand...
Click to collapse
look in about phone battery use to identify the biggest battery user, it should be the screen. anything else and there is a problem.
the cell standby may go high on froyo rom, turning on flight mode and turning it off will correct that, it's an android bug.
on gingerbread the android os or android system may hog battery occasionally. some think it is the wifi sleep policy but it pops up on me without setting the sleep policy. the fix for that is to pull the battery for a couple minutes and put it back in and restart the phone.
next manage the screen brightness
install a custom rom, there are issues with certain firmware keeping sensors active wen they shouldn't be.
turn off unneeded sync options (i find that auto fetching my email uses a lot especially with my gmail already set to sync),
use wifi when you use the internet if possible, turn it off when out and about.
monitor cpu useage of apps that are cached in the task manager
kill apps that use cpu
if needed turn the max cpu clock down to 800mhz
set "use wireless networks" for location when possible for general location (limited to city level at times)
Dani897 said:
look in about phone battery use to identify the biggest battery user, it should be the screen. anything else and there is a problem.
the cell standby may go high on froyo rom, turning on flight mode and turning it off will correct that, it's an android bug.
on gingerbread the android os or android system may hog battery occasionally. some think it is the wifi sleep policy but it pops up on me without setting the sleep policy. the fix for that is to pull the battery for a couple minutes and put it back in and restart the phone.
next manage the screen brightness
install a custom rom, there are issues with certain firmware keeping sensors active wen they shouldn't be.
turn off unneeded sync options (i find that auto fetching my email uses a lot especially with my gmail already set to sync),
use wifi when you use the internet if possible, turn it off when out and about.
monitor cpu useage of apps that are cached in the task manager
kill apps that use cpu
if needed turn the max cpu clock down to 800mhz
set "use wireless networks" for location when possible for general location (limited to city level at times)
Click to expand...
Click to collapse
Actually, high cell standby is OK if the phone is screen-off often.
Cell standby is always my top user - but my phone is sitting on my desk with the screen off frequently, in a location with weak signal. Weak signal makes cell standby usage go WAY up.
Syncwifi application is awesome for extending sync settings to gain more battery
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
Using titanium backup I froze drm content 2.2.1 and this significantly increased my battery life.
Sent from my Infuse. It is what it isn't.
JuiceDefender!!
I agree JuiceDefender works!! I had to charge in the middle of the day. Now with moderate use it will last all day Im on stock Rom.
I easily get 2 days out of my Infuse, no idea how some of you are managing to only get 8 hours. After rooting my phone and freezing the bloat i easily get twice the battery life of my prior iPhone 3GS.

tiwlan_wq usage 48% and draining the battery

After getting tired of ghost call issue, I'm back on froyo but now new problem. The fkng phone dies when left untouched for few hours. I caught the problem to "tiwlan_wq" process taking 48% cpu time after being idle for few hours and then it totally drains the battery in matter of minutes. CPU usage showed tiwlan taking 48% constantly and my battery just drained out. It's got to do with wifi since at that time the wifi stopped working and the button was ghosted and i couldnt' connect or go to its setting page and only reboot was teh only option to bring it back on.
WTF LG can't have GB cuz of ghost call and now this froyo is useless as well. Seriously thinking of selling it but hv to wait for new quad core phones to come.
Do Use 360 Launcher 360 Guard or any power saver it happend to me once. The Power Saving App (360 battery guard) was unable to turn off the wifi module by trying to kill the process which made it hog the cpu. i think it happens when a process cant be killed keeps restarting.
defcomg said:
Do Use 360 Launcher 360 Guard or any power saver it happend to me once. The Power Saving App (360 battery guard) was unable to turn off the wifi module by trying to kill the process which made it hog the cpu. i think it happens when a process cant be killed keeps restarting.
Click to expand...
Click to collapse
I'm using go launcher. I had wifi protector app, wifi lock app both of which i have also uninstalled. Will charge it full overnight and then in morning see if this helped. BTW i'm using acura's v3 froyo rom. I have some batter saving stuff as well as uptime and cpu usage apps installed. Any software which can show the process down to root level since cpu usage doesn't explain what is causing tiwaln to keep at 48%.
Thanks for the reply btw

Battery dies over night.

I use awesome off to turn my pad on and off so I don't have to use the power switch all the time. I always do this so I don't have to go through the whole boot up process when I want to use it. I noticed that when I wake up in the morning the pad is dead or almost dead. Is there a better way to put this to sleep at night? There is always so much stuff running that kills the battery. I read on here somewhere that someone was not even losing 1% by putting it in some deep sleep. Is there a mode for long time sleep that does not use battery or run any processes? But without shutting it down all the way.
Sent from my Toasted Marshmallow using xda app-developers app
Toasted Marshmellow?
Can't you just set the tablet to sleep in 5 or so minutes after being inactive?
You can have the tab cut wifi off in sleep also.
I don't do the wifi off in sleep tho...sometimes it doesn't reconnect after a wake up.
I don't know what awesome off is...I'll have to check that out.
My tab just goes into sleep after 10 minutes when I set it down.
The problem is awesome off. It won't let the pad sleep and is constantly checking for movement, light levels etc. Dump it and use the power button to turn it off and on.
Battery dies
dpshptl said:
I use awesome off to turn my pad on and off so I don't have to use the power switch all the time. I always do this so I don't have to go through the whole boot up process when I want to use it. I noticed that when I wake up in the morning the pad is dead or almost dead. Is there a better way to put this to sleep at night? There is always so much stuff running that kills the battery. I read on here somewhere that someone was not even losing 1% by putting it in some deep sleep. Is there a mode for long time sleep that does not use battery or run any processes? But without shutting it down all the way.
Sent from my Toasted Marshmallow using xda app-developers app
Click to expand...
Click to collapse
I have Nook color power button donate that I got when I had my old rooted Nook color with flaky on off switch. It was in my google apps when I was loading apps on my infinity so I figured try it and see what happens lol It works remarkably well on my tab and does put it into deep sleep . See attached. I have not used my tablet much in last day but you can see that it does put it to sleep and turns wifi on and off and also reboots. Also BTW I then tried it on my rooted ICS leak Bionic and it gives reboot function instead of the long drawn out shut down then turn on process. It does not speed up any of these functions as far as rebooting.
Could be the "wifi location drain"-bug with google maps. From reading the forums it seems quite a few people have it without knowing it. You can of course disable wifi while sleeping, but this will not cure the main issue.
Turn the location settings on in google maps, then make sure that unneeded check boxes are disabled under location settings menu and you should be fine after that. The interesting part here is that google maps will drain the wifi even when the settings are not enabled, perhaps because you can't access the underlying menu without first enabling it. So only after you first enable this setting in maps will it work correctly.
Hopefully this helps, it did for me ..
Yoop,
I watched the awesome off YT video and it didn't look as though the tablet was being sent into full sleep.
I guess with it just grinding away essentially not shut down into a battery save mode it would die.
Doesn't the Tegra3 have a 5th core for minimum power processing or fast wake up?

Android seems frozen with black screen

Android 9 on a Samsung SM-T290 tablet.
Had used my tablet, turned off screen (click Power once), and put it down. Some unknown time later, picked up tablet, clicked Power once, screen did not come on. After clicking Power a few times, held Power down thinking somehow tablet had shut itself off completely. Instead of booting, I got the choices "Power off / Shutdown" and "Reboot". Shutting down and rebooting worked. No sign of problems.
Some time ago I noticed my Uptime seemed large -- I think 400 to 600 hours.
What would cause Android to get itself into a state in which it is still running enough to offer a Power Off menu, but in which it refuses to light up the screen?
In particular, is there any problem with running too long without shutting down and rebooting?
J.Michael said:
...
What would cause Android to get itself into a state in which it is still running enough to offer a Power Off menu, but in which it refuses to light up the screen?
Click to expand...
Click to collapse
My guess is that in your Android the Doze mode is enabled.
FYI:
Starting with Android 6 Marshmallow, the Doze mode feature was introduced. This feature is designed to give a new breath of fresh air to battery consumption and in general battery life.
xXx yYy said:
My guess is that in your Android the Doze mode is enabled.
FYI:
Starting with Android 6 Marshmallow, the Doze mode feature was introduced. This feature is designed to give a new breath of fresh air to battery consumption and in general battery life.
Click to expand...
Click to collapse
No match when I Search Settings for "doze".
Under Battery -> Settings there is an
Optimize settings​Save battery by optimizing your settings when you are not using your tablet.​It's a toggle, it is toggled OFF.
I think at the moment I turned off the sceeen, I was im a browser on an obnoxious web page. Maybe their clever Javascript tied something into a knot.
I'll try to notice when I pass 600 hours of Uptime.
J.Michael said:
No match when I Search Settings for "doze".
Under Battery -> Settings there is an
Optimize settings​Save battery by optimizing your settings when you are not using your tablet.​It's a toggle, it is toggled OFF.
I think at the moment I turned off the sceeen, I was im a browser on an obnoxious web page. Maybe their clever Javascript tied something into a knot.
I'll try to notice when I pass 600 hours of Uptime.
Click to expand...
Click to collapse
If it has the doze feature, it would be a background process that you would see no controls or settings for. It is a feature in the kernel that runs at and below system level and you can't "see" it if you look for it.
Doze puts the device to sleep, it effectively freezes everything from the kernel level all the way up through system/user level and turns everything off without actually powering down and stays in that state until you "wake" it.
An example would be a Kindle Fire HD tablet that I had with doze, I forgot it was on and running a PSP emulator and I put it in a draw for many weeks, when I pulled it out of the draw and hit the power button, it woke right back up straight to the enulator and the game I had running and still had 60% battery.

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