Android :: Screen Occasionally Goes Blank On Milestones - Possible Causes / Ways Of Debugging?
Jul 7, 2010
I have an application I am currently working on for a client which is suffering from a particularly hard to debug problem. Every so often, the device screen will go blank, not just while running my application, but entirely. If I press the home button, for instance, it's still blank. This happens fairly rarely ( I myself have only seen it once or twice in a couple of months, and unfortunately couldn't gather log information immediately when it happened. What log info I was able to gather seemed to show that the phone continued to run properly - I was still seeing events in the log file - the screen was just blank ). So far, this has only been observed while running on Motorola Milestones ( this may or may not be coincidence - it's hard to tell given the infrequency of occurance ). Has anyone else observed anything similar? Any suggestions as to possible causes/ways of debugging?
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Sep 12, 2010
I've had my Epic for about a week and have noticed that from time to time that the screen flashes VERY briefly to the home screen/lock screen when inside an app.
It happens when I'm in the browser, email app, etc. There does not seem to be any rhyme or reason behind it.
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Jul 30, 2010
I'm by FAR not what you'd call a techie, and I'm totally new to the 'smart phone". I just bought a Motorola Droid. I'm still trying to figure this thing out. The one thing I'm kind of not liking is... With my old LG Dare, I used VZ Navigator for my GPS. That phone was a touch screen, but when I would use the GPS to find where I was going, I could lock the screen, and it would stay lit, and the program would continue to run. But if I bumped the screen with my finger, I wouldn't be thrown out of the program, or into another one.
I'm finding that with my new Droid (which uses Google maps) that when I'm using the GPS on that, I will occasionally bump the screen, and then I have to try to navigate my way back to the GPS. So if anyone knows of an app that allows me to keep my screen fully lit and the program working, BUT still locks the screen, could you please let me know?
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Oct 22, 2009
I've had my Hero for a couple of months now. During this time I've noticed that on occasions the screen will slide to the right without me touching the screen.For example sometimes when I unlock the phone the homepage will slide to the far right, or when viewing a web page it slides to the right.Sometimes this is quite subtle and not too much of a problem. Other times the phone is unusable as a result and requires a restart.Initially I thought this was due to me putting the phone in my pocket without a case. However the problem occurs even after my phone has been sat on my desk all day.There is nothing unusual about my environment, the temperature is average, no direct sunlight or moisture.
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Sep 12, 2010
Anyone else notice their Captivate screen waking up for no reason? Mine's only done it a couple of times, just wondering if there might be a more serious underlying issue. It'll light up for a couple of seconds with no alterts, notifications or sounds, then go right back to sleep.
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Oct 28, 2010
If there is anyway of stopping the screen from rotating both ways? I only want it to rotate one way, like it used to on 2.1
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Jul 21, 2010
Sometimes the three touch screen tabs at the bottom of the screen ,just stop working ,i can move between home screens and all other touch screen icons work,but not the three at the bottom,then suddenly they will respond Anyone else had this?,i have not installed any apps for a while so i dont think it is an app causing it.
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Apr 29, 2014
i have tried to install kitkat version for galaxy y duos s6102,for that i installed clockwork mod n cynogenmod n kitkat file..but after installing the screen goes blank,nothing appears except Samsung logo screen,
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Dec 2, 2010
This was reported in the other thread about X8 Issues, but thought to start a new one to gather feedback from users. It's about the ''black screen'' freezing issue encountered by some users. I have had this several times since owning the phone for a few weeks, so it is a recurring issue. Problem: The phone hangs or appears to be shut down or become unresponsive suddenly. Pressing the hardware buttons doesn't help as the phone doesn't react at all. Solution: Take out cover and battery and restart.Observations: From my own observations, it's not actually a shutdown but a major freezing/hanging. Sometimes when it happens, I can still see vague shades of the display at an angle. After leaving the phone for a while in the pocket, the phone comes back to normal again. Not sure if this is true for all users with this problem. Anyway, gathering more feedback to see how prevalent the problem is, to evaluate whether I should take it to the SE service centre, or whether doing so will help at all.
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Aug 21, 2010
I find when you touch the screen in the camera it auto-focuses and "occasionally" takes a picture. Is there some trick to this? I can't seem to figure out how to take a picture every time I touch the screen. Any ideas?
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Sep 16, 2010
My app has one activity and one ContentProvider, the activity is simple in that it's just a splash screen at the moment with no other logic in it (I do intend to have more activities in the app). The ContentProvider uses SQLite as a back end and loads some static data from files on first install, a slow process due to file sizes and database initialization. My problem is that I want the activity to show up as soon as the install starts and maybe display a progress bar or dialog to show the user progress about the install. At the moment I get a blank (white) screen while the ContentProvider is initialising the data which takes quite a long time and I get "Activity idle timeout for history record" warning in LogCat. My splash screen only shows when the Content Provider is done, from the app standpoint this is undesirable behaviour. One potential solutions would be to manually start the provider via an AsyncTask but I have a feeling that this is a bad approach due to the fact that if the activity is interupted and restarted while the install is underway and a new AsyncTast is created through the activity's onCreate() then I'll have worst problems on my hands. Is there a way to start the content provider in the background and display my splash screen activity straight after the app is started? Note that this problem is only an issue on first install.
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Apr 6, 2010
While opening my application from application launcher. Sometimes I am getting blank screen for long time (almost 3 min). If I perform some key events then I am getting ANR. Log is as follows.
I/ActivityManager( 57): Starting activity: Intent {
action=android.intent.action.MAIN categories ={android.intent.category.LAUNCHER} flags=0x10200000 comp={com.test/com.test.MyScreen} }
E/JavaBinder( 57): !!! FAILED BINDER TRANSACTION !!!
After this I am getting activity launch timeout and Idle timeout. Is there any design issue with my activity or problem with android environment.
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Mar 5, 2009
I tried a simple mediaplayer application, just to run a .3gp file. First, i put the .3gp file in "Raw" folder and tried to run, but nothing is displaying, just blank screen only.... please guide me, where i am going wrong. I dont have any xml file, is it needed ??
Heres the code, which i am trying
CODE:....................
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Apr 25, 2009
I've got a basic list activity with a few images that when you select one starts a new activity with a SurfaceView (based on the Lunar Lander sample). Some times the screen is just blank, from some debugging I can see that the background .png is being loaded and doDraw() is being called by the activity doesn't display anything for anything from 4 to 20 seconds. Other times the game activity is loaded just fine. I assumed it was some kind of garbage collection problem but I can't see anything in LogCat and the second activity is actually loaded, just not displayed for some reason.
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May 7, 2014
The problem is that I have created multiple emulators using android 4.4.2 API and none of them show anything but blank screen..I tried an AVD with Google API 19..thats not working either..
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Dec 2, 2009
i am writing a widget and trying to prove that it doesn't run when the phone is in deep sleep as i am setting an alarm with type ELAPSED_REALTIME. when i hit the end call on the emulator the device screen goes blank, but i still see my alarms being delivered. am i missing something?
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Jul 16, 2010
I am facing a problem.In my application I have 3 actvities A,B,C which i have declared as singleInstance.I have observed that for the first time when I launch these activities(like A > B or B > C) there is a delay observed and I see a black screen for a while.
I see in the blanch screen the header text that gets displayed is the application name which i have given in the android manifest.xml(android:label="@string/app_name")
I amy unable to understand why this blank screen is observed? Experts please comment on how to avoid it.
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Jul 10, 2010
Phone - HTC incredible 2.1 no root
I love flikie wallpaper hd app but for some strange reason it fails to load an image sometimes and I just have a blank black screen that stays until I manually change it. I have 400+ wallpapers that I have set to change every 30 min and no I don't have a solid black wallpaper. Anyone else have this problem? Have a solution?
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Dec 16, 2009
We are developing an application that requires a download of a music file (mp3). We are using the Browser Activity for the same.
The Browser Activity is invoked from the application and the download url is passed to it, like: startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(downloadurl)));
However, after downloading, on the download list page, if we press the Back button, a blank white screen is displayed. Only after we press the Back button a second time on this white screen, the application screen is displayed. This happens because the Browser Activity view is displayed before the actual downloading starts.
This is an issue in the application flow. We need to manage the flow in such a way that the 'Back' key press on the download list view will take the control to the application screen instead of the white screen.
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Jul 14, 2010
Some background info: I got an HTC Evo a few days after the initial launch. I had no problems with the screen at first at least for a few weeks. Then all of a sudden, the screen would go blank after I took the phone off the charger, or would finish a call, and a few other instances. After dealing with that for a little over a week, I took the Evo back to sprint and got a brand new one. I looked all over the forums, but could not find any answers. I know some others are having this issue, but it doesn't seem that widespread. So I get the new phone, and for the first day, I don't install any of the apps I had on the last phone because of a lack of time. No problems to report the first day of use, so I think I'm in the clear. The next day I start installing all of the apps I had on the first Evo, and bang, it starts to happen again. The screen goes blank, and I can do nothing to turn it on except to pull the battery out and restart the phone which is a monster pain. After all of this, I have to think its a software issue. Some app I have running could be causing this? How likely is it that 2 Evo's have this exact same problem, and that it's hardware related? Here is a list of apps I have installed on my phone: maui9111's Apps on the phone. I tried uninstalling several of them, but still can't find the solution. Anyone have any ideas? I love this phone, but this issue is driving me nuts!
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Oct 10, 2010
I found that when EditText in placing at the bottom of screen, and the activity's android:windowSoftInputMode="adjustPan", and the apps run in ldpi(240*320) mode, then when EditText has focus, the content of the activity is panned too far to the above, thus leaving a blank screen between the content of the window and the soft input panel.
You can see the screenshot of this problem at
https://sites.google.com/site/wilderwang/android
Also, the source code to repro this problem can also be get at
https://sites.google.com/site/wilderwang/android
When I test further, if the same apps run in hdpi(480*800), when EditText got focus, the content of the window panned too small thus causing the soft input window cover the EditText view. It seems the distance of the window panned not compute the screen density.
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Mar 15, 2010
WARN/WindowManager(61): No focus window, dropping: KeyEvent{action=0 code=82 repeat=0 meta=0 scancode=229 mFlags=8}
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Jun 18, 2009
I'm running a standard camera preview (i use the camera api demo as a reference).
When i hit the capture button, there is a black screen for a good 1/2 second until the captured image appears.
My question is how can i freeze the last image being previewed on the screen while i do the capture work ? I don't mind that the quality of the displayed image is not as good.
If i hit camera.stopPreview() -> that goes into the black screen which i don't want.
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Feb 16, 2010
When I make a phone call the screen goes blank after 5 seconds. To end a call, I have to press "home" then "end call".Is there a way I can keep the screen on whilst making a call?I have tried home, menu, settings, then sound & display, without success.
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Jun 5, 2010
I'm very new to Android programming, so this is probably something pretty basic. I just have an xml layout with a few buttons. I'm trying to follow the model given by the JetBoy demo, so I'm adding a view to the layout which extends SurfaceView. When this new view is put in my xml layout, I just get a blank screen.
Here's the XML layout if it helps. The gameview element is what causes the screen to be blank
CODE:......................
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Jul 25, 2010
The thing is that time to time my device does not respond to screen touch. For instance: then there is an incoming call it stays blank and I can not see who is calling and at the same time not able to answer it.
Touching the screen does nothing, only after pushing hard buttons, I am able to terminate the call. Also, when I am trying to access the OS from sleep mode by pressing the power button--there is no home screen--it stays blank. The only thing it does---the lights go on the home, menu, back and search buttons.
I did contact ot HTC help service and they told me to try to use the device in safe mode for two days. (this should terminate all 3rd party applications, that might cause the issue). Its my first day that I am use is in the safe mode and so far I do not experience any problems.
I do suspect that the reason of my problem could be the task killer that I am using in order to eliminator some programs running in background. But I did try out several task killers so far, however the issue remains the same
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Nov 26, 2009
I have a problem with my magic which is about 4 months old, When i switched the phone on the Vodafone logo and Andrioid logo appear BUT after this the screen goes blank, if you look from a certain angle the screen looks like its on and glowing white.
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Sep 30, 2010
I have an HTC Desire and I managed to break the LCD. I had the LCD and touchscreen replaced (don't ask long story) and now I have the following issue: When I make a call and even before I lift the phone to my ear the screen goes blank. None of the buttons work but the call is fine - I can be heard/hear the other person. When the other person ends the call the phone bips to tell me the call is over, but the screen stays blank. I can re-activate the screen by receiving a missed call - ie calling my phone and then hanging up re-activates the screen. In addition, when my phone rings the screen is fine, but as soon as I answer the call and lift the phone to my ear the screen goes off as before. The only other way to bring the screen back is to remove the battery. Whilst the screen is blank I loose all touch-screen capability too. Everything else on the phone works perfectly, sync to email, text, GPS, camera, internet etc all not a problem.
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Apr 20, 2010
Had a HTC desire now for a couple of weeks and Ive come across an annoying problem, when I make or recieve a call and raise the phone to my head the screen goes blank which in it's self is fine, but after the call has concluded the screen remains blank and there appears to be know why to get it to leap back into life ive tried moving /jiggling the phone and pressing all the buttons including the power, the only way seems to be to remove the battery and force a reboot. Anyone else experienced this or have any ideas that might help solve it?
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Oct 31, 2010
So I have had my Evo for about 2 weeks, and all of a sudden when I am in an app, then hit the home button, I am presented with a blank home screen for sometimes up to 15 seconds then all of my widgets and icons appear. It is actually quite annoying now that it is doing this almost every other time I go back to the home screen. It even happens when I hit the back button sometimes to get back to any one of my 5 home screens.Has anyone else had this issue?
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