Why is there no picture on my xbox

Hello, have you tried a different cable, different port on the tv, different tv entirely, etc.?

Hello, I know this sounds obvious, but please check the following:

• You are using the correct power supply for the Xbox/monitor
• Check that all cable connections on the Xbox/Monitor are in all the way (also try reseating them)
• Use a different HDMI cable
• Make sure the Monitor has the proper input selected
• Turn the Xbox/Monitor on and off again

Hope this helps, I own a Xbox but I'm not very experienced with it so this is just basic advice