press the function key combo to switch your laptop from the built in display to an external one. You might need to read the owners manual if the icons dont make sense to you.
i have the same prob and i did what u askd to switch off my pc using fn f4 it schowes the opening starting on the tv then when disappear to show the same massage check connection power cable and sourses
Hello,i connected my laptop to my samsung hd tv via hdmi cable and its showing check your cable connection.what do i do now..
please help
Well this is gonna sound crazy but what i did when i ran into the same problem was unplugged my satelite hdmi and plugged the chord into that slot. it popped right up on the screen hope it helps.