Always (after closing open file dialog) I get a black screen on resuming the app (app is
still alive, sending sound signals by play/pause)
I'm running on a nexus 7 and asus transformer.
Application using OpenGL in same moment and I'll get the black screen on resuming this app. Before this moment application resuming work is good.

Qt Log:
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W/Qt (22633):
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGL(22633): <eglSurfaceResize:3572>: EGL_BAD_ALLOC
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGL(22633): <qeglDrvAPI_eglSwapBuffers:3482>: EGL_BAD_ALLOC
W/Qt (22633): eglconvenience/qeglplatformcontext.cpp:173 (virtual void QEGLPlatformContext::swapBuffers(QPlatformSurface*)): QEGLPlatformContext::swapBuffers(): eglError: 12291, this: 0x5c4cd3a0
W/Qt (22633):
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGL(22633): <eglSurfaceResize:3572>: EGL_BAD_ALLOC
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGL(22633): <qeglDrvAPI_eglSwapBuffers:3482>: EGL_BAD_ALLOC
W/Qt (22633): eglconvenience/qeglplatformcontext.cpp:173 (virtual void QEGLPlatformContext::swapBuffers(QPlatformSurface*)): QEGLPlatformContext::swapBuffers(): eglError: 12291, this: 0x5c4cd3a0
W/Qt (22633):
D/MediaPlayer(22633): pause() mUri is file:///sdcard/4String.mp3
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGL(22633): <eglSurfaceResize:3572>: EGL_BAD_ALLOC
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGL(22633): <qeglDrvAPI_eglSwapBuffers:3482>: EGL_BAD_ALLOC
W/Qt (22633): eglconvenience/qeglplatformcontext.cpp:173 (virtual void QEGLPlatformContext::swapBuffers(QPlatformSurface*)): QEGLPlatformContext::swapBuffers(): eglError: 12291, this: 0x5c4cd3a0
W/Qt (22633):
W/AudioSystem(22633): ioConfigChanged() closing unknow output! 89
W/Qt (22633): ../src/androidjnimain.cpp:687 (void updateWindow(JNIEnv*, jobject)): updateWindow: Dirty screen not implemented yet on OpenGL
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGL(22633): <eglSurfaceResize:3572>: EGL_BAD_ALLOC
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGL(22633): <qeglDrvAPI_eglSwapBuffers:3482>: EGL_BAD_ALLOC
W/Qt (22633): eglconvenience/qeglplatformcontext.cpp:173 (virtual void QEGLPlatformContext::swapBuffers(QPlatformSurface*)): QEGLPlatformContext::swapBuffers(): eglError: 12291, this: 0x5c4cd3a0
W/Qt (22633):
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGL(22633): <eglSurfaceResize:3572>: EGL_BAD_ALLOC
W/Adreno200-EGLSUB(22633): <DequeueBuffer:424>: dequeue native buffer fail: No such device
W/Adreno200-EGL(22633): <qeglDrvAPI_eglSwapBuffers:3482>: EGL_BAD_ALLOC
W/Qt (22633): eglconvenience/qeglplatformcontext.cpp:173 (virtual void QEGLPlatformContext::swapBuffers(QPlatformSurface*)): QEGLPlatformContext::swapBuffers(): eglError: 12291, this: 0x5c4cd3a0
W/Qt (22633):
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