I'm wondering if this is because of my device (HTC Titan) or because of WM6... all I know is that I never had this happen before!
Basically, I'll pull out my phone sometimes and find that its turned on by itself, and has been sitting with the dim idle backlight on.
I noticed it can be caused by several things but the 2 main ones I've seen is:
1) when the phone switches to/from roaming, it wakes up
2) when using A2DP controls (AVRCP), it wakes up.
I've been using workarounds to keep the backlight off for now (set the phone to roam only, or carrier-only, so it won't be switching in/out of roam, and use core player or just remember to toggle the screen off everytime I use a media AVRCP control), but there has got to be a better way to keep the darned screen off until I press power!
Anyone have any suggestions? This is really an unexpected annoyance as it eats up my battery quickly not knowing its on...
I had a similar issue with whenever I received an email and didnt shut off the device manually. What I eventually ended up doing was setting the device to automagically lock when it was powered off, and this seemed to solve the issue. I'm not sure however if this will fix it in your case because locking it may interfere with AVRCP controls working.
So I had this same problem when I first got my Z1 Compact, but it went away after a while (I'm not entirely sure how). This creates a problem if I have my phone in my pocket, as it will skip tracks, fast forward and rewind, and waste battery. Is there a way to prevent the screen from waking when the device connects to a Bluetooth device?
EDIT: Found a solution! At least for me, hope it helps others as well. My bluetooth microphone no longer works, so I went into the Bluetooth settings for the stereo and unchecked the box to use the BT for phone audio, and only left media audio checked. This seems to have fixed this issue as well, as my screen no longer turns on automatically when it's connected! I re-checked the box and it turned on like before, so it seems like that's what's causing it to wake.
festizzio said:
So I had this same problem when I first got my Z1 Compact, but it went away after a while (I'm not entirely sure how). This creates a problem if I have my phone in my pocket, as it will skip tracks, fast forward and rewind, and waste battery. Is there a way to prevent the screen from waking when the device connects to a Bluetooth device?
Click to expand...
Click to collapse
Have a look at the Smart Connect app, maybe it has an event there that triggers when the bluetooth connects.
Thank you for the suggestion. Unfortunately, there were no such events under any of the Smart Connect options, and I can't even find an option to turn the screen on/off when a device is connected or disconnected.
I've tried setting the screen timeout to 15 seconds (the lowest possible), and I noticed that once the screen turns on after connecting, it never times out or turns off on its own. It was sitting on my car's dash, and I listened to a few songs without it shutting off. I even checked the timeout settings afterwards, and it was still set to 15 seconds.
Any idea what else could be causing this? Maybe Throw? I know I was able to uninstall that on my Z1C using Titanium Backup, but obviously I can't on this one since it's the T-Mobile Z3.
EDIT: So this apparently only happens when connecting to my car stereo. I just tested it with my Bluetooth headphones and the screen stayed asleep the entire time I was connecting and playing music.
I still have no idea what could be causing this, but I'm starting to think it has something to do with my stereo and not my phone. Is there any app or way I can test it? So far, here's what I've tried. Again, on T-Mobile Z3 so no chance of rooting at the moment. Screen still turns on whenever my phone auto-connects to my car stereo's Bluetooth.
1. Disabled Throw using adb shell.
2. Disabled MirrorLink using adb shell.
3. Disabled Smart Connect using adb shell.
4. Auto-connected to Bluetooth headphones and screen stays off as it should.
5. Tried with multiple apps (Shuttle+, Walkman, PowerAmp, even with all music apps uninstalled/disabled).
6. Old phone's screen (Z1 Compact) still stays off when connecting to the car stereo. It's rooted with an unlocked bootloader, maybe something in the Z3's DRM keys is telling it to wake up?
So that's where I'm at right now, not sure where I can go from here. I suppose I'll have to learn to live with it for the time being.
festizzio said:
So I had this same problem when I first got my Z1 Compact, but it went away after a while (I'm not entirely sure how). This creates a problem if I have my phone in my pocket, as it will skip tracks, fast forward and rewind, and waste battery. Is there a way to prevent the screen from waking when the device connects to a Bluetooth device?
Click to expand...
Click to collapse
Do you have :Smart backlight control in "Display Settings" on? In my case that was the problem! So when the screen wakes up and i'm on the move, this setting prevents the device from auto lock.
Same issue around here mate. I got a pioneer car stereo and I set the smart connect to play music as son it connects. Every time it connects the screen turns on and I got the connection message on status bar.
Smart backlight control was off, but I tried turning it on just in case. Screen still turns on. I don't even have Smart Connect enabled right now, and I don't get any connection message when it connects. I'm thinking it has something to do with Pioneer specifically, since mine's a Pioneer as well. It also doesn't turn on when it connects to my bluetooth headphones/headset, which should be the same type of connection.
I'll try messing with some settings on my stereo, see if that does anything.
I'll try on my friends Sony stereo later and see if the issue happens.
When I connect the lg g watch the screen remains off.
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I tested on my friends Sony stereo and the issue is there. The screen lits.
Sent from my D6643 using XDA Free mobile app
I have the same isue with my zenec car radio This sucks because I can't keep my phone in my pocket while I'm driving.
It would be interesting to know if this is a general android isue or if it's only a isue from sony smartphones with stock rom. Just to narrow down possible causes...
I also have this issue with my Kenwood deck. I also noticed my volume resets to half too, which is even more annoying than the screen turning on. I have no smart connect events or anything turned on. Odd thing about the volume, it doesn't do it all the time. It just seems to randomly.
NumRocket said:
I have the same isue with my zenec car radio This sucks because I can't keep my phone in my pocket while I'm driving.
It would be interesting to know if this is a general android isue or if it's only a isue from sony smartphones with stock rom. Just to narrow down possible causes...
Click to expand...
Click to collapse
It may be a security "feature", so that no-one/nothing can connect to your device without you seeing the screen light up.
poldie said:
It may be a security "feature", so that no-one/nothing can connect to your device without you seeing the screen light up.
Click to expand...
Click to collapse
I don't think so, because the phone is most of the time in the pocket so it wouldn't make sense to lighten up the screen to inform the user about a "BT event".
But hmm, maybe I'm able to solve it with tasker
BT connect on event -> turn screen off
NumRocket said:
I don't think so, because the phone is most of the time in the pocket so it wouldn't make sense to lighten up the screen to inform the user about a "BT event".
But hmm, maybe I'm able to solve it with tasker
BT connect on event -> turn screen off
Click to expand...
Click to collapse
Lighting up, by itself, would be harmless, even if your phone is usually in your pocket.
I was going to suggest tasker, but I never got anywhere with it (at least, the things I wanted to do, which don't appear to be too extravagent, apparently require either a rooted phone or additional non-free plug-ins).
poldie said:
Lighting up, by itself, would be harmless, even if your phone is usually in your pocket.
I was going to suggest tasker, but I never got anywhere with it (at least, the things I wanted to do, which don't appear to be too extravagent, apparently require either a rooted phone or additional non-free plug-ins).
Click to expand...
Click to collapse
As other member have already described, the screen keps turned on for a long period of time when a BT device connects. So it's battery waste and it's likely that I execute unwanted actions like calling someone
But thank you anyway... I'll try it with tasker and will share my solution here if I find one..
I have a Pioneer car stereo, but I haven't noticed my screen turning on. I'll test this when I get off work.
I did notice though that sometimes the BT volume goes to 50% as mentioned earlier.
My screen does not turn on when it connects to My pioneer car stereo.
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My screen turns on when it connects to my Sony stereo in my Ford fiesta [emoji20]
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I have Z2 and Uconnect stereo in my car and my screen turns on when connects to stereo.
Bumping the topic.. exact same problem. Screen lights up every time I connect via BT to my car Kenwood stereo. Very very irritating. Battery drains out without even my knowing it. Seems like a serious bug.
When I get into my car and my bluetooth headunit connects with my Z3, the screen decides to turn on... for no reason whatsoever. I've disabled apps, tried setting up tasker to turn the screen on after a few seconds... yet nothing seems to work.
Why is this happening? I never had this with my Z2, it really sucks when my phone is in my pocket and I just want to drive, instead I get random actions, and even at one point pocket dialed people.
I hate to reply with anything but a solution, but this is an ongoing issue for me as well. It doesn't seem like it's solvable without a custom kernel. After I rooted my Z1C and installed SlimKat, it stopped happening. Since I got my Z3 I haven't been able to figure it out at all. The closest I got was to install a custom lock screen and have Tasker check for BT Connected and [custom lockscreen] started then wait 1 ms and turn the screen off. That used a ton of battery. I guess it's a solution if you find a way to stop the battery drain. Went from 5+ SoT to less than 3 in a day.
Bumping the topic.. exact same problem. Very very irritating. Battery drains out without even my knowing it. Seems like a serious bug.
So I have been using stock ROM or very close to for the past 6months or so and constantly have this issue despite clean wiping multiple times while moving from Lolipop to M preview to M.
At first I thought it was my specific car but now is happening with the rental I have.
I am new to Bluetooth so maybe normal but I don't think so.
When I connect to my cars Bluetooth then make a call, after the call I get a constant "bluesleep" wake lock until I turn Bluetooth off.
If I make a call during the day while driving then get out of the car when I get home, it keeps my phone awake all night unless I remember to turn blue tooth off.
Ive noticed it only happens once I make a call or use the Bluetooth for something. If I just simply connect to my car, I don't get a wake lock.
Is this how Bluetooth is supposed to work? I can't imagine so but the fact I'm basically stock and have wiped many times and different android versions makes me think maybe it's just an android thing.
it could be app related. gasbuddy has been documented to be a culprit. i can't provide link, but there is a thread on google bug tracker "Issue 87778: Bluetooth wakelock caused by Bluedroid timer keeping device awake"
Wow that worked! Thanks so much
My screen will turn itself on every now and then, I can't seem to find anything consistent about what causes it to do this. Maybe some app I have installed is causing it but I've never had the issue on other devices (ambient display is set to off in my case)
djh816 said:
My screen will turn itself on every now and then, I can't seem to find anything consistent about what causes it to do this. Maybe some app I have installed is causing it but I've never had the issue on other devices (ambient display is set to off in my case)
Click to expand...
Click to collapse
It sometimes happens to my phone too. I don't know what causes it. And I have no problem about battery drain, I have just used phone for 1d2h33m35s with 6h20m screen on time. It was happenig to me in S5 too. I use same apps. I think an app causes it.
Mine woke up twice yesterday in the middle of the night, definitely strange.
Yeah I wish there was some place to see what apps have recently used wake lock or keep awake permissions to see if it's something I installed or what. I disabled most samsung bloat and use mostly just the google apps and then a few casual games like hearthstone
I have disabled lots of Google apps and Samsung bloatware since I use phome first day. Maybe we all disabled one wrong app
Mine does it too occasionally
Mine does as well. At one point it stopped and battery was much better, but it has started again.
yeah I'm pretty bare bones when it comes to android phones, I like minimal background apps and go for battery life and speed. still can't figure out what on earth is waking my s7
I am having the same problem with my Galaxy s7 edge. it will randomly wake the lock screen, even when not getting a notification. Its really anoying. I was also having a problem with the screen lighting up when I recieved a text message using Verizons message + app. changed to samsung message and had the same problem, even with notifcations turned off! finally got it to stop by using google messages, but now when my phone is face down it doesnt do the cool light up on the edge. really frustrating.