How to bake in combined mode?

Hi everyone!
I trying to bake all color data from one mesh to another, and I always get only black color.
Can’t get where is the problem, because first I select highpoly, than lowpoly, check Selected to active mode, and than press bake.

I attach baking result and .blend file to this post.

Thanks in advance!

combined_demo.blend (736 KB)

I solve it by myself)
Combined mode bakes only in CPU render mode