I tried other distributions, but nothing happened.
Today, something strange has happened. I connect my headphones to randomly check if something has been changed (I don’t know why) and I heard some noise from the laptop speakers. Then I try to put my smartphone line out in the computer jack with an AUX cable. And I can hear the sound of the smartphone thought the speakers. When I change the volume, nothing happened. Why? It could be some physical problem of the sound card?