I have a rooted Evo 3D and regularly use it with either Sprint Hotspot or WiFi Tether with my laptop without a problem. However with my (unrooted A100), the connection is not reliable. It connects fine with either Sprint Hotspot or WiFi Tether and shows a strong connection, but in most cases, apps, browsers, email, etc. cannot connect over the connection. Occasionally they can and then a minute later they fail again.
Additionally I have the problem of the A100 going into sleep mode that is discussed here: http://www.acertabletforum.com/forum/acer-a100-help/4696-after-sleep-tablet-does-not-wake-up-without-restart-after-update-ics.html I've installed the Gentle Alarm and the Soft Locker as suggested and the problem persists (though it did seem better initially).
Would a hard reset clearing all data be advised? Or is it better to also root the A100 (really didn't want to).
The tethering is the biggest problem as I'd hoped to be able to use the A100 when I travel instead of lugging my laptop, but I need to tether reliably to do that.
What do you recommend?
That sleep issue is called sleep of death and is incredibly common on a lot of devices. I've had every android device do it at least once except the a100. For every device its happened on its usually charging and having wifi on, however if the development option in settings is available to you, check "keep awake" is the usual work around. The apps they are using are essentially the keep awake option in development, which is why it seems to stop it from happening.
So for me wifi off while charging overnight or even airplane mode before leaving overnight seems to stop it. I do this on my a100 out of habit, never had a SOD with it on like 5 roms, stock HC flex reaper and CM9 with different versions. Never ran stock ICS so I can't say if it does it or not or if you have developement in settings.
Tapatalked from my A100 - Flex Reaper RF1.
pio_masaki said:
That sleep issue is called sleep of death and is incredibly common on a lot of devices. I've had every android device do it at least once except the a100. For every device its happened on its usually charging and having wifi on, however if the development option in settings is available to you, check "keep awake" is the usual work around. The apps they are using are essentially the keep awake option in development, which is why it seems to stop it from happening.
So for me wifi off while charging overnight or even airplane mode before leaving overnight seems to stop it. I do this on my a100 out of habit, never had a SOD with it on like 5 roms, stock HC flex reaper and CM9 with different versions. Never ran stock ICS so I can't say if it does it or not or if you have developement in settings.
Tapatalked from my A100 - Flex Reaper RF1.
Click to expand...
Click to collapse
Thanks. I have normally been leaving WiFi on all the time, and while I thought I'd had the keep awake on in developer options, I see it isn't on. I've turned that on, and for now will try it like that (leaving WiFi on too). I'm not too likely to remember to turn WiFi off overnight. I have though definitely had the SOD happen when it wasn't charging too.
Any other thoughts, especially to the tethering part?
Related
Hi everyone!
I'm using OpenDesire 4.0.4, and while it's more or less the perfect ROM for me, I'm getting a little annoyed at the WiFi. As the ROM is based on CyanogenMod, it has the same WiFi behaviour: When the screen turns off, the WiFi enters power saving mode, regardless of the apps that are active at the time, or the amount of traffic over WiFi at the time.
The problem here is that any application that's using WiFi pretty much just stops as soon as you turn the screen off.
1. Sipdroid during a call: Massive packet loss as soon as the screen turns off. You may hear a garble or two, but nothing intelligible.
2. SwiFTP and other FTP servers: Connecting to the FTP server and navigating to folders takes ages when the phone is in standby. Transferring files is more or less impossible (times out)... Everything's fine when the screen's on. If you transfer a big file and turn off the screen during the transfer, you basically pause the transer - turn the screen back on and the transfer goes back to full speed
3. Market: If you turn off the screen while a lot of apps are going to download, like after pressing "Update all" for a few apps, more often than not they'll just fail in the background.
Now, I could beg and ask the ROM developers (Kali for CyanogenMod on Desire, or AdamG for OpenDesire) to just change this behaviour, but it seems that most people are happy with the situation, as it causes the WiFi to use very little battery on standby... so I'm asking if anyone knows how I could change this myself. Is it even possible to do this at runtime without baking it into the ROM directly?
Or am I SOL until (or rather unless) AdamG or Kali takes pity on me?
I'd love to hear some input - hell, maybe I'm just doing it wrong ... Thanks in advance!
PS: Yes, my WiFi Sleep Policy is set to Never, and the Desire DOES stay connected when the screen is off. Just in a very low power mode...
-edit- Should have searched, sorry: http://forum.xda-developers.com/showthread.php?t=752856
-edit2- Looks like there really isn't a fix for this... Anyone found a way to completely disable PSP on the Desire/Nexus WiFi?
I'm on the same ROM as yourself. What value is your "screen-off lock screen delay" set to?
In my observations, the transfer in the state you mention still persists albeit at a very slow rate and the WiFi chip is certainly placed in the LOW power state, although on.
I'm unaware of any workaround but what I use myself when transferring bulk 1-7GB files through WiFi from my PC/Laptop, which is to change the value of the screen lock delay at screen off under Settings>OpenDesire>User Interface>(last option) to a high figure, like 10-30m, depending on how long I'm expecting the transfer to take. It's a trade-off but you'll still save over 95% of the power since your screen is off but the WiFi/SD/CPU remain working as when the screen is on. Maybe you've tried this already?
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- Sent via my HTC Desire -
That's not a bad idea... brb testing .
-edit- Didn't work
As soon as the screen times out, my transfer speed drops to nearly 0 - even with the lock delay set to 30m... :'(
OK, that's confusing. I'll be back by tonight or morning... I have much testing to do on this since for sub-20mins, my connection runs plus 200Kbps according to the PowerTutor log in such a state. Usually it would drop to 0.3-8Kbps when the screen switched off.
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- Sent via my HTC Desire -
th3 said:
OK, that's confusing. I'll be back by tonight or morning... I have much testing to do on this since for sub-20mins, my connection runs plus 200Kbps according to the PowerTutor log in such a state. Usually it would drop to 0.3-8Kbps when the screen switched off.
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- Sent via my HTC Desire -
Click to expand...
Click to collapse
Mine drops to practically 0. So low that due to overhead, FTP transfers pretty much stop completely...
I've seen that the linked kernel module provides a temporary workaround for you guys now. During the course of my testing your concern I basically found my WiFi module isn't ever turning off nor switching any connections off - it's always awake and can always transfer some data. Even in the LOW state it is connected at 24Mbps. Whatever I did I couldn't change this behavior on 4.0.4. Time for another wipe...
OD has many user preferred options baked in working fine alongside the conventional options so it'd probably be best suited for a toggle of this feature to be implemented for you guys (if at all possible). Not sure if that WiFi module power state behaviour is write-able and changeable on-the-fly before a reboot, should be, as it's only changing a hardware state.
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- Sent via my HTC Desire -
The new Wifi module is working perfectly here. No more performance problems, and my power consumption has actually gone DOWN. Probably because I have a bunch of connected apps running in the background and PSP is very inefficient for that.
Also, the delays in Chrome To Phone and Appbrain web installs are gone...
I'm loving this fix...
So after quite a while debugging wake lock issues I finally figured out what was causing my phone not to sleep. Wifi!
I'm on MIUI with Savaged Zen 0.0.5 (happens across kernels) latest radio/wifi/wimax downgraded to 1.77 PRI/NV. Running MIUI, so wifi sleep policy is set to never to prevent random reboots.
It's very easy for me to duplicate this, when I have 3G on my screen on vs running time are nearly equal. If I turn off the display and leave wifi on my running time will be 300% of my screen on. The only "solution" i've come up with is to turn wifi off on display off with Tasker, but I thought wifi should be a more effecient radio than 3G, generally i've heard you get better battery life while on wifi....
The only thing that I can think that might have caused this is I imported my Wireless AP stored settings from a sense rom when moving to MIUI using Ti Backup. I'm at a loss on how to fix this though -- is there some sort of cache or something I can clear to get wifi back working correctly?
lil-dice said:
So after quite a while debugging wake lock issues I finally figured out what was causing my phone not to sleep. Wifi!
I'm on MIUI with Savaged Zen 0.0.5 (happens across kernels) latest radio/wifi/wimax downgraded to 1.77 PRI/NV. Running MIUI, so wifi sleep policy is set to never to prevent random reboots.
It's very easy for me to duplicate this, when I have 3G on my screen on vs running time are nearly equal. If I turn off the display and leave wifi on my running time will be 300% of my screen on. The only "solution" i've come up with is to turn wifi off on display off with Tasker, but I thought wifi should be a more effecient radio than 3G, generally i've heard you get better battery life while on wifi....
The only thing that I can think that might have caused this is I imported my Wireless AP stored settings from a sense rom when moving to MIUI using Ti Backup. I'm at a loss on how to fix this though -- is there some sort of cache or something I can clear to get wifi back working correctly?
Click to expand...
Click to collapse
No problems here with 0.0.5
My phone sleeps fine on both miui and salvage gb. Not sure why its giving your problems... i would have to guess its an app or something you have installed. Ive had two different miui installs and they both were 100% fine.
I'm not blaming the kernel or MIUI, I just have no clue how to debug this. I have a very minimal app set up now, i've uninstalled nearly everything...I would think if it was a rogue app it would happen over 3G as well as wifi...that's why I think it's something wit the wifi service itself, I just don't have any idea how to clear the wifi stuff off there's no data cache or anything.
I have set the Wifi policy to "Always on".
Many times (but not every time) when my One X goes into sleep mode, all data connections don't work. I notice it because I feel so strange there is no notification from Whatsapp and Line as usual. So, I press the power button and see no data connection at all. After a few second, 3G data connection appears but no wifi. Wifi then replaces 3G a few second later.
It usually happens and I feel so annoyed as I lost communication with my colleagues when One X is sleeping.
Is there somewhere in "Setting" that can override the "Always on" in Wifi policy? If I miss it, please let me know.
I feel very disappionted with my One X as it contains a lot of bugs.
jackie_jerk said:
I have set the Wifi policy to "Always on".
Many times (but not every time) when my One X goes into sleep mode, all data connections don't work. I notice it because I feel so strange there is no notification from Whatsapp and Line as usual. So, I press the power button and see no data connection at all. After a few second, 3G data connection appears but no wifi. Wifi then replaces 3G a few second later.
It usually happens and I feel so annoyed as I lost communication with my colleagues when One X is sleeping.
Is there somewhere in "Setting" that can override the "Always on" in Wifi policy? If I miss it, please let me know.
I feel very disappionted with my One X as it contains a lot of bugs.
Click to expand...
Click to collapse
It's happening to me too, it's very frustrating because when turned on it show as connected while it's false.. and i'm unable to browse/etc without re enabling wifi manually.
Same issue on the One S. This is most likely a driver related problem or something. I think the next firmware update should fix this, but if anyone of you can provide a hotfix or something I wouldn't be sad
Getting the exact same problem.
I have not noticed this so far.
same problem with wifi....and in the nights my Data also gets switched off after sometime of inactivity...couldnt find any setting related to that....do any of you know any hidden setting for it?
Yeah it happening to me as well. It could be kernel related.
Same Here
Mine is opposite, I want it to sleep on screen off but it keeps reverting to always on. Quite frustrating as it is the major cause of my battery loss
Sent from my HTC One X using XDA
Mine uses less battery with wifi on then normal 3g/4g
vallandil said:
Mine uses less battery with wifi on then normal 3g/4g
Click to expand...
Click to collapse
yeah same here, i've tested both over night and less battery used on wi-fi than 3g
I cant connect to my home wifi, it show connected then disconnect immediate
it no usaable now in my house
I just noticed this, too. Really annoying when you suddenly stop getting any notifications for E-Mails etc.
This is also not fixed in 1.28 :/.
I seem to only have this during the night hours, though. Like there is some sort of "Quiet Hours"-function but they forgot to put it in the settings >_<
I think this is the special Sleep Mode kicking in, and the WiFi Always-On is overridden by it.
When I turn the screen off, I can still ping my One X over the network. However, after some time (maybe 5-10 mins) it no longer responds and has dropped its WiFi connection.
The Always-On WiFi option has only ever applied to when the screen is off. The sleep mode thing is new and not related to android itself - an HTC hardware thing by the look of it.
Maybe it's fixable in the driver software, but I believe the "WiFi always on" function is behaving correctly - it's the new sleep state that is breaking it.
I could be wrong, but that's what it looks like.
If someone has the time, try setting up a PC to continuously ping the One X and see if it keeps it from going in to sleep mode.
Dave Trouser said:
I think this is the special Sleep Mode kicking in, and the WiFi Always-On is overridden by it.
When I turn the screen off, I can still ping my One X over the network. However, after some time (maybe 5-10 mins) it no longer responds and has dropped its WiFi connection.
The Always-On WiFi option has only ever applied to when the screen is off. The sleep mode thing is new and not related to android itself - an HTC hardware thing by the look of it.
Maybe it's fixable in the driver software, but I believe the "WiFi always on" function is behaving correctly - it's the new sleep state that is breaking it.
I could be wrong, but that's what it looks like.
If someone has the time, try setting up a PC to continuously ping the One X and see if it keeps it from going in to sleep mode.
Click to expand...
Click to collapse
Hello Dave,
Your analysis is quite impressive,
I also started dealing with this from "Special Sleep Mode" perspective.
I have got the FOTA, find data in my signature, and still suffering from the same issue.
To summarize my findings let me brief it:
When I first got the update, the problem seemed to be solved
I kept connected to my home WiFi router for several hours and got notifications from Whatsapp and Twitter
I thought the problem was solved and the bug was fixed, as I kept seeing my OneX on the WiFi Client on my router's managing interface on my PC
I shut down my phone, WiFi was on, and turn it back on
WiFi kicked in and connected with no problems,
An hour after, I sensed something wasn't good, notifications were silenced
I unlocked my phone and checked the status bar to find there were no DATA connections at all, nothing, no WIFi no Mobile Data, the usual bug
Now I started to think,
I Have got this problem after a full shut down, and at a battery below 15%
One thing to add,
I turned my phone off with WiFi enabled and when turned it on WiFi kicked in.
Now I am monitoring on the following basis.
I clicked all WiFi hot spots previously saved on my OneX and chose to "FORGET"
Connected to my preferred hotspot
Monitoring the WIFI, with battery over 15%, seems to be very healthy, more than an hour on sleep mode, and WiFi is on, uninterrupted and VERY CONNECTED
I will keep monitoring the behaviour till battery fall under 15% and will report back
I'll make sure to turn off WiFi before shutting down my phone if I have to, this is to eleminate the other variable and keep concentarting on one variable "Battery percentage"
A point to add:
On my previous Gingerbread SensationXE, there was an option on Settings> Battery to control phone's behavior and stop background sync and other activities when battery fall below a pre-defined percentage.
Default was 15%
I can't find this option on my One X, IceCream Sandwich
That's why I started to analyse the problem from the perspective of "Special Sleep Mode - Below 15%" bahaviour.
I will report back as soon as I have results.
Thank you
Update:
Started to experience same issue when battery falls below 50%.
All DATA gone down, no WiFI and no Mobile Data.
Charged my phone to 73%, "Forget" all WiFi network.
WiFi off
Monitoring Mobile Data only.
Mobile data gone down after 30 minutes sleep mode, 73% battery
Connecting to WiFi, and started monitoring WiFi
WiFi + Mobile Data gone down after 30 minutes.
Power down phone, and then on, 73% Battery, WiFi off
Monitoring Mobile Data only.
Failed, and disconnected
Failure
I've done a Factory Reset !!!
Update:
No problems on WiFi, nor Mobile data whatsoever for the whole day until battery falls below 10% !!!
WiFi disconnected after exactly 15 minutes, Mobile data kicks in, then disconnected as well !!!
I turn on the screen after 20 minutes to find NO DATA CONNECTION of any kind.
Mobile data kicks in, WiFi replaces mobile data, and start receiving all data dependent notifications!!!
I have the same problem, wifi is turned off sometimes when screen is locked.
Pabson said:
I have the same problem, wifi is turned off sometimes when screen is locked.
Click to expand...
Click to collapse
Hello Pabson,
Thanks for sharing.
Would you provide more information about your phone's software number, your location (Region, not specific).
Thanks again.
Same here, tried several roms and the same happens with every ROM out there. What is more, I cannot connect to WIFI at work (WPA PSK) but I can connect perfectly to my home WIFI network.
Hopefully this is not a hardware fault and will be fixed.
Monrad said:
Same here, tried several roms and the same happens with every ROM out there. What is more, I cannot connect to WIFI at work (WPA PSK) but I can connect perfectly to my home WIFI network.
Hopefully this is not a hardware fault and will be fixed.
Click to expand...
Click to collapse
If it happens on every single rom you you installed, then apparently this is a hardware fault.
What "Base" do the Roms, you installed, created on?!
I mean based on what version of RUU?
same problem here.
I mis the "power saving mode" options like in android 2.3
It might idd have something to do with power savings mode kicking in.
I was wondering if anyone else was seeing this issue or knew what was causing it. My phone has for the longest time, been doing almost a hot boot on it's own, where I will notice the phone is at my desk, I see it come on by itself, menu and back buttons lit, and it looks like it reloads all the os. No errors, or crash errors, just on it's own. I have nothing stock uninstalled (everything on the phone is stock, rom included), did have some disabled via TB, but to test I allowed all services/apps to load as when I got the phone, still does the same thing, like every other day. I have the latest OTA, rooted, with the freeza update for LI3, running apex launcher pro and of course some apps/widgets like everyone else. This happens no matter what, but always on it's own. I have a widget that shows memory usage, and I'll have sometimes 300mb free, and once this "hot boot" the phone does, i'll be back at over 1.2 gb free, so I know it's reloading everything on the phone. is there any way of figuring out what is causing this, cause I know this isn't normal behavior. Any help would be great!
so I think I found the answer.. Via WIFI settings I had enabled under Advanced: Keep WIFI on during sleep, NEVER (increases data usage)... Of course when you'd then try to use your phone after some time, you'd notice it switch radios from 3/4G to WIFI, and sometimes it would take a few seconds to do that. When I had that option enabled the OS would reset itself after about a day of use, as I described above, not a full restart, no crash/force close errors, you'd just see the phone come on, and basically everything reloading.. After trouble shooting whether it was an app or something causing this, it was, I believe, the WIFI setting, since I changed it to keeping WIFI on "always" during sleep, in that advanced setting, the phone has not done the issue described. Going on 79 hours with no issues, which is the longest I've seen since noticing this problem.. So hopefully in the future if this happens to others, this method might be what was the problem/cure..
I always keep wifi on.. it seems to save a lot more power than 3g and its clearly faster =p.
Sent from my SPH-L710 using xda app-developers app
This is no longer needed! The bug is fixed with the new quattrimus and the Wind kernels... and probably an upcoming official one as well. 3-30-13
This is for those of you on CM10.1 (or ROMs based on it) who use wifi and need a way to work around the Wifi battery draining bug. If you didn't know, the wifi bug will cause your device to lose power at at rate of 6-10% per hour while just sitting idle with wifi turned on. This is aggravating for those of us who use wifi a lot and are used to just leaving it on because normally wifi uses LESS power than other connections!
I was formerly using DS Battery Saver or Green Power to toggle my connections, but I like the following method better because it is a bit smarter (you'll see what I mean). Also, sometimes those connection toggler apps would screw up my autosyncing and messages wouldn't show up for hours.
I tried the wifi timeout hack, which kind of sucked because wifi still stayed on in areas with no wifi.
After trying a ton of apps and combinations of apps, I've found a solution that works pretty well. Here it is:
1) Install the app "Better Wifi On/Off" by Sven Knispel
2) Open it up and hit the settings button. Put a check on "Expert Mode", then back out of the settings and go back in.
3) Place check marks next to the following settings options only:
- Enable when user turns wifi on
- Start on boot
- On when screen unlocked
- On when plugged in
- Only if connected
- If wakelock is held
- If network activity
- If plugged in
- Off when unplugged
- Off when screen off
4) Now find the option marked 'Delay - Time to wait before checking Wifi status' and set it to 10s. 0s may also work well, but I haven't tested it.
5) Profit.
*If you have problems with the program stopping, you can go back into Settings and put a check on 'Run as foreground service'.
**The program has a widget you can add to a homescreen so you can quickly disable/enable it if you have to.
With this setup, Wifi simply turns on when I need it and automatically turns off when I don't. It checks for traffic and won't kill the connection until your download or stream is done. It checks for access points, and if there are none available it turns wifi off... something that DSBS and other similar apps don't do all that well.
I'm getting battery life similar to if I had DSBS, Juice Defender or Green Power running- but I never lose autosync and nothing is ever delayed, because mobile data never turns off. I tested my hotspot function and it worked just fine with no interference.
Hope this helps until (if) we ever get a real fix for the wifi drain bug.
I'm not sure if I had something set wrong or it was an interaction with another program or something else, but I tried it and it locked up my phone hard. Not even the buttons light or feedback goes off but no screen. Had to use the hold power to reset.
I hope they're able to get the power issues taken care of in CM10. With the newer nightlies and the wind kernel it's honestly about as stable as CM9 for me. Power usage is my only major issue now.
SeriousGeorge said:
I'm not sure if I had something set wrong or it was an interaction with another program or something else, but I tried it and it locked up my phone hard. Not even the buttons light or feedback goes off but no screen. Had to use the hold power to reset.
I hope they're able to get the power issues taken care of in CM10. With the newer nightlies and the wind kernel it's honestly about as stable as CM9 for me. Power usage is my only major issue now.
Click to expand...
Click to collapse
Yeah it must have been something else at play- the above app doesn't really do anything unusual that would cause a hang. It's been doing well for me today- I've been using my phone pretty steady since 7am and I'm at 40% battery (now almost 4pm). I'm currently on miroslav_mm's CM10.1 build.