Unsupported signal. Please check device output

S.Agnew Posts 3 Registration date Friday November 20, 2009 Status Member Last seen November 22, 2009 - Updated on Nov 27, 2018 at 11:52 AM
 Yaya68 - Aug 14, 2023 at 04:13 AM
I am trying to hook up my HP laptop to my Sony Bravia TV.

I have an HDMI output for the laptop and an HDMI cable. I have tried simply plugging the cable into the TV and the laptop but when I do that the tv does not show the picture from the laptop a black screen comes up that says "
Unsupported signal. Please check device output.

Can I hook this up with just an HDMI cable or am I doing something wrong?

9 responses

The message
Unsupported signal. Please check device output
means that your resolution is too high for the TV. You should consider to lower the definition to something like 800x600 and progressively make it higher.

Did you try holding down the function (Fn) key and tapping the blue monitor key (it's different on all laptops, but usually one of the "F" keys) to send a digital signal to the TV?
You are amazing. It works.
I love you, it worked!!
It worked for me also I just usedt (fn) key and it was the f8 key on my compwith the words(crt/lcd)...thanks!
I tried that, and it didn't seem to work. I'm using a dell m6800 and I set the second screen's resolution to 800/600, and it still says unsupported.