Hi all,
I just installed Android 4.2 on my Yakju GNex.
In the Wi-Fi advanced menu, I saw a new option:
Wi-Fi Optimization
Minimize battery usage when Wi-Fi is on
Do you know what does it do?
Does it affect the speed?
It is quite suspicious ... because if it is for BETTER, why make it as an option? Why not enable it by default? !!! *strange* isn't it?
I don't recall that option before ...
Thanks.
Bump
I just checked it and I have it enabled by default ...
I have mine enabled, not sure if it helps or not yet.
Anyone knows what does this option do? With Android 4.1.2 y had the option selected to Turn Off Wifi when screen goes off. But with 4.2 OTA without wipe, it has been changed to Always ON, with this optimization option checked.
Which option do you recommend? I used to have Turn off when screen off because I never turn off the wifi manually, but with this new option I don´t know which option is the most energy saver
This option reduces the speed of wifi when the screen is off.
Related
Hi,
I just discovered something strange: I use FolderSync to sync Music to my GN. I configured it to only sync when WLAN is available. When I sync and switch the screen of, then the Sync stops immediately and resumes when I switch the Screen back on. Is WLAN switched off when the screen is switched off? Did I miss some settings to configure that?
Thanks
May be related with some auto task killer or process killer like juice defender
Yes you missed some wifi settings. You can set there whether you want to turn off wifi with the screen, keep it always on or keep it always on while charging.
You can find it in:
Settings - wifi - ... - advanced
Thanks martan1981, but this is "always on" on my GN. So thats not the reason
Do you have any battery-saving apps like JuiceDefender or GreenPower installed? That could cause your data/wifi to turn off with the screen.
Or there could perhaps be a power-saving function built in to your ROM? I know AOKP has a Power Saver mode that could be enabled to turn data off with the screen.
wifi sleep policy should be set to never. But some people have a bug where this setting does not stick for some reason. You prob have this bug too.
I also have this problem how to fix it ?
No root stock 4.0.2
Is it possible to lock the screen but keep it on? This is because the WiFi always loses connection when the screen is off. I have tried every app there is to keep the WiFi fully awake when the screen is off but none of them work.
vpwrf said:
Is it possible to lock the screen but keep it on? This is because the WiFi always loses connection when the screen is off. I have tried every app there is to keep the WiFi fully awake when the screen is off but none of them work.
Click to expand...
Click to collapse
Settings > Wifi > Menu > Advanced > Wifi policy, You've tried that?
Yes. I have tried that.
Did u tried "no lock" apps from market, try that
"No lock" apps are not what I am looking for. I need it locked so I don't keep knocking things and the screen kept on or to find a way to disable the stupid WiFi sleep thing so it runs at full power even when the screen off. Is there a way to do this?
I have searched and found something that could disable the WiFi power saver at http://forum.xda-developers.com/showthread.php?p=16519177#post16519177 . Can someone check this and get it working on the HTC Wildfire S kernel version 2.6.35.10-ga66971c and 2.3.5 stock ROM?
Hi,
On my Nexus (i9250, stock ROM rooted), I used to select the "stay awake" option from the dev menu and it was working perfectly, but suddenly (as far as I know, not related with any update), the option has been disabled.
Could someone explain me why and how to reactivate it ?
Sorry, I can't post an image yet (too new on the forum)
Thanks
Diego
i don't know about that option, but to keep my screen on if i have pandora or anything and i don't want it to go to sleep after the set amount of time, i downloaded screen timeout toggle. works great, but it's just another app running in the background instead of letting us decide if we don't want our display to turn off after a certain amount of time.
I have low needs for my phone and would like to have power saver enabled automatically, however I cannot find a way to do this. Is there any setting, app, tweak, command etc. that will enable power saving mode to start automatically and be the default mode?
I have turned on Powersaver and rebooted my phone. Powersaver stayed active.
I have turned on Extreme Powersaver and rebooted my phone. Extreme Powersaver dit not stay active.
If you require Powersaver only, then it shouldn't turn off once you activate it. If you're referring to Extreme Powersaver, I wasn't able to find anything on that. I will add that I do have a custom ROM. I am not sure if the ROM is why Powersaver stays on or not.
For your use I would do this:
Turn on Powersaver
Turn off Sync
GPS Off (Go to Settings >> Location >> Mode: "Battery Saving")
Turn off scanning for WiFi even while it's off (Go to Settings >> WiFi >> [Click the menu button, 3 dots on top right] >> Advanced >> Uncheck "Scanning always available" There's some other settings you may want to look at as well, like "Keep Wi-Fi on during sleep" and whatnot.
This is all I can think of to help you out a bit more. If you don't use the internet for background syncing, you can turn off data and turn it on when you get ready to check something. In better service areas, you'll usually have data by time you're done toggling the service.
Thx. you are right about power saving staying enabled through a reboot. However, I would like to not to accidentally disable it. Is there a way to keep power saving enabled and have it not show up on the lockscreen? There should be a way to disable lockscreen notifications for power saver but I can't find one.
Having just returned to the latest stock firmware after a couple of weeks testing CM12.1, I am finding that even if I turn "Keep scanning on" off in advanced WiFi settings menu, it comes back on by itself. Also, when I check my battery stats, it nearly always seems to show a solid bar for WiFi regardless of whether my WiFi was turned on or not, regardless of whether always scanning is on or off, regardless of whether location is on or off... it seems to have no effect whatever the settings are.
I am also unable to use the Power Saver function. If I try to open it, I get the "Unfortunately power saver has stopped" message. I read that disabling the stock clock or calendar apps causes this problem, so I deliberately didn't do so. Are there any other stock apps that will stop power saver from working if disabled? I guess I may have to enable everything again and then disable one by one checking power saver each time to find the culprit, but that is a huge pain in the behind, so thought I'd ask you guys on xda first