need help with tv and pc hdmi no signal

[sage1234]

i bought this pc yesterday HP Pavilion Power Desktop - AMD Ryzen 7 - 4GB AMD Radeon Graphics and used my samsung tv as a moniter it was working fine but not it wont get a signal i tired switching cables but did worl the tv is new also just got it like a week ago my tv is samsung hdtv 32 4 series m4500. any advise would be helpful need to pc gaming

 

[sage1234]

MERGED QUESTION
Question from sage1234 : "pc no signal on hd tv"

bought this pc yesterday HP Pavilion Power Desktop - AMD Ryzen 7 - 4GB AMD Radeon Graphics and used my samsung tv as a moniter it was working fine but now it wont get a signal i tired switching cables but did not work the tv is new also just got it like a week ago my tv is samsung hdtv 32 4 series m4500. any advise would be helpful new to pc gaming