Start with your Xbox 360 off. Wholes close programs on your laptop.
Insert one end of your HDMI cable in HDMI port at the back of your Xbox 360.
Insert the end of the object in the HDMI Cable HDMI input port on your laptop.
Turn on your Xbox 360. Your laptop should automatically detect the new entry and the switch to HDMI mode. revise
Now enter the display setting on your laptop if the mode switch that does not happen automatically.
Has accessed your xbox 360 "Systems setting" menu of the dashboard.
Configure the display settings and the desired resolution.