HDMI on my Toshiba SATELLITE P55W-C5208-4K is not working

[hernandozapatar]

I have a laptop Toshiba Satellite P55W with an HDMI port. I am trying to connect to another screen but the systems is not showing another display, what should i do

 

[rickyyohanes19]

Try to update your Graphics driver. If HDMi still didn't working, maybe there was a problem with your connector or cable.