I have found where the problem is, thanks to egl-intermix demo source. My function sequence call is:

1) gf_layer_attach();
2) gf_surface_create_layer();
3) gf_layer_set_surfaces();
4) gl_layer_enable();
------------------------------
5) gf_surface_free()
6) gf_layer_disable()
7) gf_layer_detach()

after this initialization and shutdown I changed video mode using gf_display_set_mode() and then set layer settings 
again:

8) gf_layer_attach();
9) gf_surface_create_layer();
10) gf_layer_set_surfaces();
11) gl_layer_enable();

After this point OpenGL ES initialization gives black screen only. Experimentally I've found that problem line has 
number 3). If I comment out this line everything works properly until next video mode switch.

> Ah!  egl-intermix kind of "cheats" by using ROPs.  You could accomplish this 
> by using two layers as well.
>  
> -Derek

This is modified main.c from egl-intermix test application, which reproduces the problem which described in the 
beginning of this thread.

My code begins with comment:
/******************************************************************/
/* Here is my code, which causes black screen in OpenGL ES render */
/******************************************************************/

After this comment below present one more comment:
/**************************************************************************/
/* Comment out this line to get rid of bug                                */
/**************************************************************************/
	gf_layer_set_surfaces(layer, &gfsurface[0], 1);
/**************************************************************************/
/* End of bug :)                                                          */
/**************************************************************************/

When you comment out the whole gf_layer_set_surfaces() line, egl-intermix application will work as usual.