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Black screen on panasonic eluga

June 18, 2012 - 12:14am #1

Hi,

i have problems in running our vuforia powered ar app or even your basic demos on a Panasonic eluga phone.
It seems to be a problem related to the camera or rendering the camera background.
Unfortunately there are no error messages or warnings or something that could be a hint
what the problem exactly is.
The QCAR framework initializes well and i also have a network connection so the camera parameters could be fetched.
After everything is initialized and the splash screen gets invisible the screen is just black.
The app is still responding and i can for example open the options menu.
I have figured out that the rendering function onDraw(...) gets called only two times and than stops. You can see this in the attached log.
When i remove the camera initialization in the native code the rendering loop works.
But the camera initialization and parameters are looking ok. The antive code tells me :
D/QCAR(3593): Configure Video Background : Video (640,480), Screen (960,540), mSize (960,720)

Does anybody facing the same problems or have some ideas what could be the problem with the panasonic eluga?

Log attached

SebastianG
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September 22, 2011
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Black screen on panasonic eluga

January 25, 2013 - 7:15am #7

Hi rockw446,

could you provide model details and Android version installed ?

also, do you see this on Vuforia 2.0 sample apps ? or 1.5 samples ? or your own app ?

 

AlessandroB
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Black screen on panasonic eluga

January 24, 2013 - 4:01am #6

I did same process on my device and also restart many time with new installation process but no luck.is there any other solution?

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rockw446
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January 24, 2013
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Re: Black screen on panasonic eluga

June 20, 2012 - 12:11am #5

Yes you solved my problem.
It works now. Thank you very much.

Regards Sebastian

SebastianG
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September 22, 2011
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Re: Black screen on panasonic eluga

June 19, 2012 - 11:56am #4

Hello SebastianG,

Can you please try running your application again from a clean start. To do this please uninstall the app from your device and install it again. Make sure the device has an active network connection by opening a web browser on the device and opening a web page before starting the Vuforia app. Once you have verified the network connection start up your Vuforia app for the first time.

Please let me know if this fixes the problem,

-Peter

ppreuss
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Re: Black screen on panasonic eluga

June 18, 2012 - 11:51pm #3

Thank you for your quick response.
The Modelnumber is: dL1
Panasonic Eluga dL1 with Android 2.3.5.
Are these your required informations?

SebastianG
Joined:
September 22, 2011
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Re: Black screen on panasonic eluga

June 18, 2012 - 10:02am #2

Hello SebastianG,

I'm sorry for the trouble you are having with you device. Can you tell me the model number of your device found in Settings -> About Phone.

Thank you,

-Peter

ppreuss
Joined:
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Posts: 359
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