Shadows are too dark in living room

Hello, I am new here and i have a problem with Shadows,

This is my living room

note the shadow is too dark!

I have researched here about this and i found a solution to put a skylight,
but when i put a skylight

the shadows are ok now, but the whole house is clear

Any suggestion?
Thanks for now and sorry my bad english =/

You also need a lightmass importance volume for the indirect light to work. It sets the bounds for the raytrace.