Pc to hdtv no signal.

[tommyboy111]

my hdmi lead is 5 metre, my hdmi channels only show a blue screen which means no signal. will a shorter hdmi lead give me a signal. nothing from my laptop appears on screen at all using hdmi 5 metre lead. please help.

 

[tommyboy111]

my tv is a 1080p and my laptop only goes up to 900, will this matter?