HDMI is not detected in tv

[vinovichu]

Hi team 

            i am using sony laptop and sony tv,i am not able to cast any video using HDMI cable 

tried using a different cable and different  tv still not working,finaly found my lap is the problem 

I am using 

Model :- SVE151A11W

if possible please provide a troubleshooting steps or help help me to update the driver 

not able to find the model number in the list 

please do the need full