Thank you for your answers. Actually, I found the solution, my Inspiron comes with an INPUT HDMI but you need to select the source by pressing a very small button under the ON/OFF button of the Inspiron, then it will detect the HDMI cable.  Hope it helps.
Hello, I am trying to connect my Dell Latitude 3190 to my Dell Inspiron 5477 with an HDMI cable but it does not work. The Latitude can detect a second screen but not the Inspiron. If I move the mouse of the Latitude outside the main screen, the mouse disappears out of the screen but does not appear on the Inspiron. Can anyone help me please? Thank you, Thomas
Connecting my laptop to my inspiron