my n5 to tv hdmi, it is giving a part screen view

[AC Question]

my phone is nexus 5

 

[B. Diddy]

Welcome to Android Central! Are you using a SlimPort adapter?

 

[Rukbat]

Part of the N5 screen? Or in portrait mode, only the middle third of the TV screen is being used? That's normal. The picture won't stretch to cover the whole screen or flip 90 degrees. The TV is in landscape mode, so it'll look better if you run the phone in landscape mode.