Why WiFi works faster when screen is OFF? - Xperia Tablet Z Q&A, Help & Troubleshooting

I've a Pollux device which is installed with PreRooted Lollipop 5.1.1. I've WiFi speed of over 40mbps for download and upload speed of 50mbps (as in speedtest.net). When the screen is ON and I download a game from PlayStore I get around 3-4mbps download speed. And when the screen is OFF I get download speed over 10mbps.
My friend has an IPhone 6 which has a stable connection to my WiFi router but my Tablet Z seems to drop the connection every minute.
Why is it so?
Is it because all other apps are put into sleep when the screen is OFF?
I use Greenify app to hibernate all installed apps and I've disabled alot of bloatwares (Really alot). Also I've done some tweaks like
windowsmgr.max_events_per_sec=150
wifi.supplicant_scan_interval=10
Can anyone let me know what's really happening here? And if possible a solution/tweak for the same would be great
Thank you

How do you measure download speed with screen off?

Rootk1t said:
How do you measure download speed with screen off?
Click to expand...
Click to collapse
Well, when i download app from google PlayStore it shows a notification on my lock screen (The speed rate of download). When the screen is ON and i check the notification it shows me 3-4mbps or sometimes less. When i turn OFF the screen and after 15-20 seconds when i check the lock screen notification, it shows somewhere above 10mbps. I tried downloading the same app again when screen is ON, I get 3-4mbps again. It's weird. And the wifi keeps dropping every 10 minutes or so.
Shall I change the ROM?

Related

[Q] cannot wake up from sleep

Hi,
my new archos 101 often cannot wake up after sleep (deep sleep or screen timeout).
tried many methods: wifi disabled, battery booster, flight mode, sounds disabled... no luck.
i installed new fw, 2.1.8 and arctool with markets and google app and some games.
uninstalling maps and disabling wifi location didnt help. whats strange, is that sometimes screen turn on after 30s+ seconds..
i am new, but is there any way to check what's a process blocking it?
write to logs or connect via usb and check?
help very much appreciated
I'm having the same problem...
I just keep pressing the on/off button until the screen turns on. Didn't find a fix yet.
>>> i installed new fw, 2.1.8 and arctool with markets and google app and some games.
those were my 1st steps with archos, so dont know if it works in previous firmware.
right now, i dont want to do hard reset.
There is allready a discussion about this.
It seems that after the press, the archos is waking up, but the displaylight itself doesn't come up.
If you switch the display to abough 30% ( Settings/Display ) this doesn't happen again.
NOT kidding: the Archos has trouble turning on when cold. Try warming it on the radiator if its <15 degrees celcius.
Sent from my GT-I9000 using XDA App
success!
turned out, it is TRUE... 30% solved it!
btw, pretty ridiculous bug..
fzelle said:
There is allready a discussion about this.
It seems that after the press, the archos is waking up, but the displaylight itself doesn't come up.
If you switch the display to abough 30% ( Settings/Display ) this doesn't happen again.
Click to expand...
Click to collapse
30% of what? Increased brightness? I went to settings/display and couldn't find percentage level
As i don't have an english version, i can't tell you what you should read there,
but which other setting in display has percentages?
no % displayed, but just set if for 1/3 of the progress bar.
Jeezus, i cant believe it, but i can confirm that it's a brightness setting issue. It's so ridiculous but it's true. I have been frantically trying to find a solution to this problem for the past 30 mins, and turning the brightness setting to 40% worked to restore the screen after the soft sleep mode, when previously i had to keep rebooting the damn thing by longpressing the power button. THANKS A MILLION, GUYS!
Ohh i see i am not alone = ]
Thank you for the Workaround!
Sent from my A101IT using Tapatalk

Can I stop this constantly scanning?

See photo:
The scanning icon comes up every 5 seconds. Just wondering is this normal or what? Never showed up on my S2.
Also I keep getting a "connected to wifi network" notification at the bottom of my screen every few mins. Can't find anything to disable this.
Anyone in same boat?
It looks like its having problems keeping connected to your network, but its strange as you got full bar connection does it drop to nothing or is go very low when it reconnects?
This can be controlled with Rom Toolbox if you are rooted. I do it with my Note.
Sent from my GT-I9300
SkillfulMmd said:
It looks like its having problems keeping connected to your network, but its strange as you got full bar connection does it drop to nothing or is go very low when it reconnects?
Click to expand...
Click to collapse
It sometimes goes off(wifi) when I turn off the screen.
Sent from my GT-I9300 using Tapatalk 2
if the wifi switches off on screen of thats wifi sleep policy, I don't know if thats under battery saver feature so if you have that on that could be why ill take a look.
*edit*
So I had a look if you go to Wi-Fi and click on it and navigate to advance you can change the "keep Wi-Fi on during sleep" to always. It should stay on all the time now which hopefully should fix your problem
SkillfulMmd said:
if the wifi switches off on screen of thats wifi sleep policy, I don't know if thats under battery saver feature so if you have that on that could be why ill take a look.
*edit*
So I had a look if you go to Wi-Fi and click on it and navigate to advance you can change the "keep Wi-Fi on during sleep" to always. It should stay on all the time now which hopefully should fix your problem
Click to expand...
Click to collapse
Tried that but still the problem is there. If I turn screen off for a min or 2 and turn it back on then there's no wifi icon for a few seconds. I thought having it on always means it stays consistently connected to wifi? This doesn't seem to be the case as the "connected to wifi network " message appears at bottom of screen again.
Sent from my GT-I9300 using Tapatalk 2

Problems after jellybean update

I am noticing some problems with my s3 after the official jellybean update. It feels like it has been rushed to the phone. For example it doesn't have the quick reply feature in the notification window. It does for missed calls but not for messages. This is one the most anticipated features for me. Also when watching you tube and you don't want the screen to rotate it now does. I want to lock the rotation so I only get the small video at the top when my phone is on its side. It worked before jellybean update. Also auto brightness has changed. When auto brightness is selected you can manually turn it up with the slider in the notification window and it disables auto brightness and changes to what you set on the slider. Now on jellybean you have to uncheck the auto brightness box and then slide. Little features like this are starting to make me feel like it has been a massive rush to get jellybean on to the s3 which is ironic seen as though it took long enough. I have the international i9300 model s3. Is anybody else noticing the problems I have stated? Does anybody know a way of changing/getting the features? Thanks.
They were definitely to busy with the Note II, I mean come on at least give their flag ship the same/some of the features that a bigger version of the S3 has... That sexy multitasking should have been on the initial jelly bean update.
94% to 77 % in 7 hours.
WIFI : On , PSM off
Most power and wakelocks were by Kernal.
Normal?
I'm on LJ4, stock kernel?
I've not got a clue what you're on about?
Sent from my GT-I9300 using xda app-developers app
I know what you mean. The note got great features like the multi window. Apparently that's coming before the new year but I highly doubt that. Are you noticing the same problems I am? Another problem I found is when screen goes off after inactivity you used to be able to press the home button a moment after it goes off and it would turn the screen back on leaving you at the page you was. Now the home button takes you back to the home when you press it. It's annoying you have to go back to the app.
Sent from my GT-I9300 using xda app-developers app
eggman89 said:
94% to 77 % in 7 hours.
WIFI : On , PSM off
Most power and wakelocks were by Kernal.
Normal?
I'm on LJ4, stock kernel?
Click to expand...
Click to collapse
Me too, my problem is the battery with jb lj4
I think there is a few little niggles but overal its pretty much the same.
The autobrightness don't disable automatically now when you adjust the slider as you can now actually adjust the autobrightness brightness, Not sure why though.
Google Now - leaving it active at the mo, but not really found any usefullness from it as yet. The Time home feature is ok, would be good if it actually showed the route I take home - Via motorway, rather than the route through city center which i don't take!!
The new notifcation bar - its ok, nothing major. Expect a bit of all these features will improve over time as well once apps get proper updates. Some work but don't have full functionally - Songpop has no notifications now for example.
Battery Life - I did find that my normal phone use on ISC which included about 50/60 mins worth of calls etc wi-fi left on all the time but only actually connected to wi-fi at home (just 2G & 3G at work) i would have about 55/60% battery life left by the time i got home from work, on Jelly Bean - with the same useage i had about 40/45% left. I am now back to the same as before on ISC, but i didn't disable google now or anything just turned Wi-Fi off when left home and turn it back on when home - results was 55/60% battery remaining a as on ISC. Seems that the Wi-Fi drains when not connected - either it keeps on searching which it might not of done on ISC or its the Google Now doing something (Does say improve location by keeping wifi on - does this even if not connected!!) - Least this way i can still use google now and see how it improves its tags overtime.
I am now using a App called WiFi Timer to automatically switch Wifi on and off when i leave/get home.
Love that it now has voice downloaded so you can text etc with no data connection - find its more accurate now as well!
Never had the small vids on Youtube when rotated phone so not sure about that. Take it disabling autorotate doesn't do this?
Good and Bad
My experience is as follows:
Good:
Sheer speed, no perceivable lag.
A problem I had with only half the SMS notification tone being played (before it cut off) has gone away.
Bad:
Battery drain terrible even when idle. Turning off Google Now, Location Services and Samsung Push Notification fixed this.
When I activate Smart Stay, the screen does not want to turn off 80% of the time - even when I'm not looking at it.
When I wake the phone using the home key, it exits the app I was in. Previously, this would wake the device and return you to the current app (after unlocking). I have a partial work around using the PreHome app; this way the app is still visible underneath the PreHome dialogue box and I just need to press Back to get to my app again.
Widgets, seem to refresh less regularly, particularly Messaging and Gmail widgets which seem to hardly even refresh when I want them too.
Of No Consequence:
The red charging led is a little dimmer when charging.
Overall:
The speed benefits outweigh the niggles - just!
Dan
ohyesman said:
I am now using a App called WiFi Timer to automatically switch Wifi on and off when i leave/get home.
Click to expand...
Click to collapse
No need for an App. You can do it inbuilt.
Go to Wifi, Menu button and Advanced
eggman89 said:
No need for an App. You can do it inbuilt.
Go to Wifi, Menu button and Advanced
Click to expand...
Click to collapse
Yep i know, but this app is far better as it lets you setup different profiles for mornings, evenings & weekends etc which the inbuilt one don't. :good:
root?
i may just root my phone as i really am not happy with this jellybean update, nothing has really improved for me, if i root it and install a rom like codename all the features like quick reply would be there right?

[Q] how to keep the wireless on while the screen is off

hi!
I have a sony xperia tablet s and yesterday i got the upgrade to JB
I would like to keep the wireless connection on while my screen tablet is off. I tried the wireless option and i checked "keep the wireless on always" but it doesn't work.
Is there a way to do that?
thanks
Try some of these apps https://play.google.com/store/search?q=wifi+lock&c=apps
Haven't tried them though
Advanced Wifi Lock is the best one out there. Has different settings aswell.
Ubichinon said:
Advanced Wifi Lock is the best one out there. Has different settings aswell.
Click to expand...
Click to collapse
yes! it works even the free version.
Like this i can download file all night long!
advanced wifi lock disables sleep.
sleep policy is disable wifi when sleep is triggered.
sleep is triggered when hitting power button regardless if synching or uploading is going on ignoring sleep prevention mechanic thats build in many apps.
most android devices are build to only put screen off when hit power button leaving sleep on untill not used anymore.
advanced wifi lock is btw huge batery drain you won't notice extended batery life improvements from 4.1.1 if you gonna use advanced wifi lock.
Zer0K3wL said:
advanced wifi lock disables sleep.
sleep policy is disable wifi when sleep is triggered.
sleep is triggered when hitting power button regardless if synching or uploading is going on ignoring sleep prevention mechanic thats build in many apps.
most android devices are build to only put screen off when hit power button leaving sleep on untill not used anymore.
advanced wifi lock is btw huge batery drain you won't notice extended batery life improvements from 4.1.1 if you gonna use advanced wifi lock.
Click to expand...
Click to collapse
Not true. If you enable the option "disable wifi after period of time" (it isnt named exactly like that), wifi is automatically switched off after 20 mins of afk and the tablet goes in to sleep mode.
Ubichinon said:
Not true. If you enable the option "disable wifi after period of time" (it isnt named exactly like that), wifi is automatically switched off after 20 mins of afk and the tablet goes in to sleep mode.
Click to expand...
Click to collapse
wifi won't turn back on then not sync for hours unless turn tablet on and turn on wifi.
and will interfear more with syncing stuff that way then not having advanced wifi lock installed.
no idea whats causing it but i don't have advanced wifi lock turning of screen does't put tablet in sleep anymore.
have no apps running and custom homescreen apex launcher.
wifi has been on for 2 hours non stop
MAC Address Interface Uptime TX Rate RX Rate Signal Noise SNR Signal Quality
xx:xx:xx:xx:xx:xx ath1 2:03:43 150M 6M -46 -95 49 59%
If sleep is being prevented should wake lock detector not show this ?
apearntly google+ was uploading file in background which has ability to prevent sleep, and if sleep is not triggered wifi stay's on.
so guess wifi working fine now as long apps that upload files or sync have ability to prevent sleep.

[SEMI-SOLVED] F5121 FPS locked to 48 everywhere!

I need some help. My device can only display a maximum of 48-49 fps, at least I think so. I noticed that the device was a little slow on scrolling, and downloaded an app called Gamebench. I captured the Settings app, YouTube videos in 60 fps, 2D games and more but everything is locked to 48 fps! I don't know if it is the apps fault or something else. Please test your own device and report back!
Edit: found the solution. Some apps just do something on boot related to STAMINA that causes the lock. Just disabled those apps in BootManager, rebooted and the device runs at 60 fps! Thank you venomxob for pointing out STAMINA as a culprit to this problem.
Edit 2: this is NOT caused by apps. Disabling every single app in BootManager doesn't help. But the temporary fix is still to toggle STAMINA on and off.
Have you tried switching off STAMINA mode?
venomxob said:
Have you tried switching off STAMINA mode?
Click to expand...
Click to collapse
STAMINA is off. I actually just got the phone for Christmas and I have never turned STAMINA on.
If I would do a test on a fresh wipe, then I'll wait out until the Oreo update comes. I am running stock OS.
Recording the screen with GravityBox yielded footage at an even lower framerate of 37. Viewing 60p footage on my phone and computer side by side I can see the difference in smoothness so it's not Gamebench's fault for this. Turning off developer options does not help either.
I think i found a solution. I turned STAMINA-mode on and off and noticed a frames boost. I measured the Settings app scrolling and read 60 fps! I didn't turn it on and off after reading the first reply because I didnt think it was the cause of the problem. So I think it is fixed! Thank you so much venomxob!

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