My TV - an Indian manufacturer called Micromax (http://www.snapdeal.com/product/micromax-50b5000fhd-50-inches-full/1405132060#bcrumbSearch:micromax%20tv)
when i connect the Raspberry Pi 2 flashed with OSMC to my HDMI port using a BlueRigger HDMI cable - the TV first senses it as a 1366*768 display out and sometimes mistakes it as a DVI! (it says so when the screen is booting up)
I think this is an issue with the TV, rather than the Pi, i connect my MacBook thru HDMi and have to adjust display Res to 1080p thru System Preferences
Does any one know what the problem is? Why this is happening? Any help is appreciated. Thanks.