Windows 10: when connecting an HDMI from the pc to the tv the pc monitor turnes off and the tv shows a...

Hello could you please help me with my problem. i recently started conecting my pc to my 4k lg tv and in the display options i selected that it should show only on the tv screen which when enabled turns the computer monitor screen off but after that i saw that there is an option to turn on HDR and when i enabled it the the tv screen disconected and it portrays a no signal massage and now every time i connect the hdmi to the tv the pc screen turnes off and the tv shows a no signal massage so could you help me please thank you.

:)

 

Connecting pc to tv

Thanks but I've tried each of the selections in the AV input list. I've managed to upload 2 photos of the tv inputs

 

Connecting pc to tv

Here are the other 2 - showing PC input & AV options list

 

hdmi cable from pc to hdready tv

Try this....turn off pc.
Connect HDMI into a different jack.
Make sure HDMI is connected to pc.
Change the tv to cable or satellite or something that shows a picture.
Turn on pc.
Answer questions put forth by tv.