
Most of them mention about moving the icons from primary to secondary.

I have visited various forums and checked on their discussions. The screen resolutions are okay, the "Settings", has "Extend these displays", as selected ( the only options I have there are, "Extend these displays", "Show only on 1" & "Show only on 2"), my PC is marked as "Make this my main display", The Orientation is on "Landscape". Suddenly today, after switching the PC, "ON", the desktop and the icons on the PC were wide and the icons were bigger in size too, while the secondary monitor had only the desktop background on the screen.

Till yesterday, whenever I turned my PC, "ON", I used to get the desktop Icons on it as well as on my secondary monitor (TV) (connected via USB to HDMI cable).
