Wifi sleep set to screen turns off - Galaxy Tab 10.1 General

Samsung Wifi-only 16gb tablet
Guys
I have set my wifi sleep policy as 'when screen turns off'. However, on doing a packet capture on my wireless access point, I still see some data from the tablet. Also, emails to my tablet email address cause a lot more data and the tablet responds to pings too
Isn't the wifi sleep policy supposed to turn the wifi radio off?
Thanks in advance!

yes, it should but I think wifi is not shutting down immediately after screen off, only after a few minutes or so.

Yea I noticed the same thing... its killing my battery wish this worked properly
Sent from my GT-P7510 using xda premium

Found out that I need to disable Airsync to get wifi to stay asleep. My idle battery is 20% of what it was before since wifi would never sleep. Don't know if you have DoubleTwist airsync or not but I lose 5 - 6% per day now.

anthesca said:
Found out that I need to disable Airsync to get wifi to stay asleep. My idle battery is 20% of what it was before since wifi would never sleep. Don't know if you have DoubleTwist airsync or not but I lose 5 - 6% per day now.
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ah,where to disable Airsync?
thank you

Related

Holy crap. Change wifi sleep policy to never. BIG INCREASE IN BATTERY

I'm not sure if anyone else knows this, but I read somewhere that if you change the wifi sleep policy to never, it actually SAVES battery.
I thought this was insane, but if you think about it it actually makes sense. It stops your phone from the constant switch to Edge and 3G... which in return saves your battery.
Usually I can lose up to 5% in 30 minutes by not even using my phone.
Now that I have a constant wifi connection I have only lost 2% in an hour and a half.
Assuming you're connected to a wifi network, yes.
Otherwise, no.
JCopernicus said:
Assuming you're connected to a wifi network, yes.
Otherwise, no.
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I'm not sure how that works when you're not connected to a network and the phone goes into sleep...
I use Y5 which uses cell towers to remember where I am able to receive wifi. If I leave a remembered spot it will turn off the radio for me. When I come back it will automatically turn it back on and reconnect.
lance713 said:
I'm not sure if anyone else knows this, but I read somewhere that if you change the wifi sleep policy to never, it actually SAVES battery.
I thought this was insane, but if you think about it it actually makes sense. It stops your phone from the constant switch to Edge and 3G... which in return saves your battery.
Usually I can lose up to 5% in 30 minutes by not even using my phone.
Now that I have a constant wifi connection I have only lost 2% in an hour and a half.
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Click to collapse
Hmmmm
Wouldn't the phone continue to have it's cellular Edge/3g connection going while you have the WiFi on?
Whenever I have WiFi on in addition to 3g I always see, under battery usage, wifi at about 2-3% and Cellular signal at 5-6%
Seem's like when you have WiFi on as well as Data that both are draining the battery...
The phone turns off 3g radio when you have a data connection.
JCopernicus said:
The phone turns off 3g radio when you have a data connection.
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Click to collapse
Are you sure about that? I'm connected to WiFi on my phone and the Status screen under About Phone still stays UMTS rather than EDGE.
PrawnPoBoy said:
Are you sure about that? I'm connected to WiFi on my phone and the Status screen under About Phone still stays UMTS rather than EDGE.
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UMTS is just the 3g network, that doesnt mean data. the 3G network is used for voice calls too.
so yes, when the phone is connected to wifi, the cellular data connection is terminated. always been like this.
and yes i've seen a huge battery increase with wifi set to NEVER sleep policy.
It will stop hop between 2G/3G even if you're not using the data. You'd have to force it to 2G only and then enable wifi to take advantage of this the most.
I second those findings. When at home, use no sleep policy, and going out - turn off wifi manually. Works very well.
My "always on while sleep" doesn't work.. it opt's out anyway..
Edit: Installed an app called Wifi Fixer. And my connection hold up now while sleeping. nice....!!!
Where do I find this sleep-setting?
Not looking for a flame because I'm still learning.
if you have juicedender and keep the wifi setting on what it is when your phone sleeps the phone will turn off wifi and juicedefender will turn of 2g/3g correct? If this is true then you can save double the battery by installing defender (free); right?
bberry said:
Where do I find this sleep-setting?
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Click to collapse
Go into Wi-Fi settings.. Hit Options (the capacitive button you know...)
Ha! I've had my N1 for two months now and didn't realize there was more Wifi options if you click on the options button to the left of the home button. I wish they would add some sort of indicator that there's more to do if you click on that button. I've run into this soooo many times. It's kind of nice, though, because I keep finding goodies even months after buying the phone lol.
Yes it's often a mystery - it would be cool if it was possible for the capacitive menu button be lit only when there are additional options.
Sindroid said:
My "always on while sleep" doesn't work.. it opt's out anyway..
Edit: Installed an app called Wifi Fixer. And my connection hold up now while sleeping. nice....!!!
Click to expand...
Click to collapse
..will try that Wifi Fixer too
kbeeveer46 said:
Ha! I've had my N1 for two months now and didn't realize there was more Wifi options if you click on the options button to the left of the home button. I wish they would add some sort of indicator that there's more to do if you click on that button. I've run into this soooo many times. It's kind of nice, though, because I keep finding goodies even months after buying the phone lol.
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Click to collapse
First rule of Android power-users:
Press Menu... Everywhere
Paul22000 said:
First rule of Android power-users:
Press Menu... Everywhere
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Click to collapse
I tried that on a hottie standing in line for coffee. I got slapped.
I've tried setting the wifi sleep policy on my phone (T-Mobile MyTouch Slide) to "never sleep," but I'm not sure it's helping. When I turn on wifi for a little while (say, an hour or two) and then look at the battery usage screen I see that wifi uses a pretty significant chunk of the battery, maybe 10% or so, higher if I leave it on for longer. This is even if I'm not using the connection much, sometimes I'll turn it on to do a little light browsing and then put the phone away for an hour and then check to see how much power the wifi connection ate. Today I turned on wifi for maybe 10 minutes to download a couple app updates and turned it off right afterward. The phone has been only off the charger for 3 hours, but wifi accounts for 8% of the battery drain (the rest is idle: 16%, standby: 31%, and display: 45%).
On the other hand if I stick to 3G data I don't feel like I see as much of a hit on the battery (though it's harder to tell how much of "standby" is going to 3G data).
I understand in theory that connecting to a wifi access point within the building should require less power than connecting to a cell tower a mile away, but I also disable "always-on mobile data" so hopefully I'm not maintaining a 3G data connection all the time either.
Those of you who leave the wifi connection on all the time and are reporting better battery life than with 3G data, how much of your battery do you see going to wifi in the battery usage screen?
Well for me when I leave WiFi set to never, I lost 11% in 12 hours. On 3g I lose way more in that same period.

battery die in 7-8 hrs on wifi ??

Hello i left my wifi on last day and when i woke up at morning my batrry was dead is this ok or somthing is wrong with my phone ?
Naeem786 said:
Hello i left my wifi on last day and when i woke up at morning my batrry was dead is this ok or somthing is wrong with my phone ?
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It's normal on default stock rom settings.
Change Wifi policy to "When screen turns off"
Naeem786 said:
Hello i left my wifi on last day and when i woke up at morning my batrry was dead is this ok or somthing is wrong with my phone ?
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WiFi does suck battery pretty massively on SGS. I've only had my phone for a week, so I don't have any hard-and-fast rules, but I can say that turning off WiFi and mobile data overnight means that I only lose 2-3% battery at most
jstegeman said:
WiFi does suck battery pretty massively on SGS. I've only had my phone for a week, so I don't have any hard-and-fast rules, but I can say that turning off WiFi and mobile data overnight means that I only lose 2-3% battery at most
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I can say NOT TURNING OFF WIFI and MOBILE DATA overnight and I loose only 2-10 % overnight. Depends on how long I sleep
Having on WIFI or Mobile Data VS closing it. I think I even posted my results in a thread where I tested it. Was in long run via "shutting off everything(sync/data/wifi)" and "having everything on" like 3-5 hours of standby or 15-20 min usage battery gain. (60 hours VS 62-5 Standby)
If your phone eats that much. Either is wrong configured (wifi wont sleep how the second post said/something is refreshing too often) OR there is a program/app thats always running and not allowing it to sleep.
Skype is the worst of worst in this (and fairly common). Others wont come to my mind now.
Naeem786 said:
Hello i left my wifi on last day and when i woke up at morning my batrry was dead is this ok or somthing is wrong with my phone ?
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Click to collapse
I never turn wifi of ever and i average two and half days between charges and i use phone a lot i use js7 and realy good
Sent from my GT-I9000 using XDA App
rdy2go said:
It's normal on default stock rom settings.
Change Wifi policy to "When screen turns off"
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Click to collapse
Its not normal on any rom wifi should not be issue as long as wifi is conected and not constantly searching as stated i never turn it of policy is set to always.and i get around sixty hours between charges wifi does not cause massive drain biggest drain is screen
Sent from my GT-I9000 using XDA App
Wifi Off when screen OFF = 2% battery drain .
Wifi On when screen off = big drain as its constantly searching .
jje

wifi keep on disconnected after few minutes

my wifi connection always drops after few minutes and then it tries to authenticate again. this happens when i left the phone idle for <3 mins or so and sometimes less. when it tries to aunthenticates back, it takes a longer time than just simply turning off and turning on the wifi back again to get connected.
is this an error or its just the way the phone is? i'd like to keep my wifi connected during some heavy downloads and be able to leave the phone lying somewhere while its downloading..
explainations and help needed..
you not using any power manager apps that turn of the wireless after the screen switches off when left idle ?
And what about wifi sleep policy? But there is problem for me too. I turn it off, but when i disable wifi, and turn it on again, wifi sleep policy settings are again at 15minutes.
nexy33 said:
you not using any power manager apps that turn of the wireless after the screen switches off when left idle ?
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i'm using Advanced task killer and Android booster on my phone to kill running apps. however, i did not used them to manage my power consumption. i have not done any settings regarding wifi connectivity on both those apps. But could both these apps be responsible?
Gatis777 said:
And what about wifi sleep policy? But there is problem for me too. I turn it off, but when i disable wifi, and turn it on again, wifi sleep policy settings are again at 15minutes.
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my wifi sleep policy setting is set to Never by default. Could it be my router whose causing this issue?

Wifi Sleep

Here is a question about Wifi sleep that seems pretty obvious to me, but in case I am wrong I will ask here.
You enable Wifi, which shuts off 3G (but keeps 1X active). Now Wifi goes to sleep (when the phone is in your pocket), and while Wifi is sleeping, someone sends you a GMail. I assume that you will NOT get any push notifications while Wifi is snoozing away???
You should have WiFi set to not sleep.
Sent from my SPH-D700 using XDA App
To expand on Beezer80's comment, you will have better battery life if you set your wifi sleep policy to never sleep. Your power is drained faster with repeated search and connect actions by your phone, so you'd be better off keeping the pipeline open all the time.

[Q] Phone doesn't go into deep sleep + wifi always stays on

This is very annoying, I have spent the whole morning trying to find a solution for this issue. The battery runs out already fast as it is, and now the phone is not
Battery drained about 20% at night by itself. Currently draining about 1-2% per 5 minutes when idle. What do I do? I have looked on various different threads for a solution, but did not find anything to fix this issue.
How do I fix this?
Thanks, in advance.
Also some details.
I had my phone at home, I prefer the phone to use WiFi networks when syncing and updating, but to have phone turn them automatically off when not using them, that is when the phone is locked and not syncing and updating anything. But apparently it doesn't do that, it has WiFi on at all times for some reason. And I don't know if its related to WiFi, it doesn't appear to go to "deep sleep"
Yukicore said:
This is very annoying, I have spent the whole morning trying to find a solution for this issue. The battery runs out already fast as it is, and now the phone is not
Battery drained about 20% at night by itself. Currently draining about 1-2% per 5 minutes when idle. What do I do? I have looked on various different threads for a solution, but did not find anything to fix this issue.
How do I fix this?
Thanks, in advance.
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Click to collapse
Yukicore said:
Also some details.
I had my phone at home, I prefer the phone to use WiFi networks when syncing and updating, but to have phone turn them automatically off when not using them, that is when the phone is locked and not syncing and updating anything. But apparently it doesn't do that, it has WiFi on at all times for some reason. And I don't know if its related to WiFi, it doesn't appear to go to "deep sleep"
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Click to collapse
For me, it was the last Google Maps update. Try to disable "Reporting Location" and "Location History" under Location settings on Google Settings app(the one with the green icon). I had around 25% drain over night and half of it came from this.
Try it and see if this can help you.
:fingers-crossed:
Like above say, disable location, especially if you keep wifi on.
Leaving wifi on while sleeping itself is not good for our health anyway, so if you have data switch to 2G, its at least enough to keep internet messages coming while saving battery. And if its wifi wise, apply pm.sleep_mode=1 in your build.prop. AND, scroll up a little, wifi_supplicant_can_interval(something like that, from its SHOULD BE 15 change to 300-600).
Disable unused apps and use greenify.
Galaxo60 said:
For me, it was the last Google Maps update. Try to disable "Reporting Location" and "Location History" under Location settings on Google Settings app(the one with the green icon). I had around 25% drain over night and half of it came from this.
Try it and see if this can help you.
:fingers-crossed:
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Thank you for the answer, but sadly it didn't seem to do it. My WiFi is still always on, even though I have it set to turn off when phone is sleeping at WiFi advanced settings.
Although the phone entered deep sleep mode when I manually turned WiFi off, but I'm not sure if that was the case.
KiD3991 said:
Like above say, disable location, especially if you keep wifi on.
Leaving wifi on while sleeping itself is not good for our health anyway, so if you have data switch to 2G, its at least enough to keep internet messages coming while saving battery. And if its wifi wise, apply pm.sleep_mode=1 in your build.prop. AND, scroll up a little, wifi_supplicant_can_interval(something like that, from its SHOULD BE 15 change to 300-600).
Disable unused apps and use greenify.
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Click to collapse
I understand, but I forgot to do so, I actually have an app that turns on air plane mode at certain time. But that still doesn't fix the issue that the phone doesn't enter sleep mode with WiFi on and doesn't turn it off, even though it's set to do so.
Also I did not quite understand what you were telling me there, as I got the phone last week and it's my first android phone. The app you suggested could cut it, but that means that whenever there will be an auto check for news sequence I will be downloading it with mobile data? Is there an app that could cause this?
I was about to update on this, but I just got notification about 4.3 update. :laugh:
I will update this post, if this problem still exists.
UPDATE : Of course, still the problem persists, Phone goes to sleep when I have Wi-Fi turned off. But when on, even though I have it set to turn off during sleep mode, it keeps the phone wake and drains the battery.
Restart your router?
Sent from my Nexus 4 using Tapatalk 2
Ulver said:
Restart your router?
Sent from my Nexus 4 using Tapatalk 2
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How is it related to my router exactly? My iPod disconnects from Wi-Fi no problem.
Thank you for trying though.
I had left my phone this night with Wi-Fi off, but mobile data and 3G was on, Lost 7% in 7Hours from 47%. Does this seem okay, or a little bit too much? By the time I answered 2 emails and made 1 short phonecall and checked on battery logs from 2 different apps, and changed my wallpaper, battery has dropped to 33%. I'm not proud.
The answer to your problem is JuiceDefender Ultimate, available from Play Store.
Yukicore said:
I had left my phone this night with Wi-Fi off, but mobile data and 3G was on, Lost 7% in 7Hours from 47%. Does this seem okay, or a little bit too much? By the time I answered 2 emails and made 1 short phonecall and checked on battery logs from 2 different apps, and changed my wallpaper, battery has dropped to 33%. I'm not proud.
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Click to collapse
Unfortunately this is normal, the battery life is not the best feature of nexus 4. How many screen on time hours do you get averagely?
This fixed the Wifi always on issue for me.
Turn WiFi on: Settings, WiFi, Menu (3 dots upper right hand corner), advanced, uncheck scanning always on.
Hope this helps.

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