we used the J6 DRA746 IC in our device and find when our device only connect one display, it run the hardware composer,
when connect 2 display ,it run the Gralloc automatic( through the GPU to deal with), but it will run over the GPU usage.
so we want to run the hardware composer at 2 display in order to save the GPU.
I hope you can teach us how to set the hardware composer or give us some patch or reference doc.