Question about Sony KDF-E50A12U 50" LCD HDTV

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Why won't the HDMI work?

When I connect my laptop to the TV via HDMI and select HDMI as the signal input, there is neither picture nor sound on the TV. How can I get this to work?

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  • etrc_new May 08, 2014

    Hi Scot , if YOU switch you laptop so that it is dual display mode (on my HP press the f4 button) can you get anything on your laptop ? After checking connections, try a different HDMI cable. Do you mean selecting HDMI input on the TV (expect you do) ?

  • Scot
    Scot May 08, 2014

    Hi, yes I managed to eventually get a picture on both the TV and the laptop using the f1 function (I have a Dell XPS) and setting the Sony TV as the default display device. However, I am only able to extend the screen, not duplicate it, nor select 'projector only'. No matter what option I selected, it changed to 'extend'. I was still not getting any sound at this point though. I had also selected the Sony TV as the default playback device for digital audio, using NVIDIA control panel - all to no avail. Then, mysteriously, while I was out of the room, the sound appeared... Wish I could say what it was that solved the problem, but I honestly have no idea! It's still working fine now though, apart from not being able to select 'duplicate', rather than 'extend'.

  • etrc_new May 08, 2014

    Some computers have a screen extendfunction yes. I believe this is different to the sitch display function that you need, although you might try (but you probably have already) pressing f1 more than once, because the exact function may cycle through a number of options. I would on the internet (again, if you haven't already) forswiching the display to an external monitor on Dell computers. I have been assuming that the HDMI connection is on your computer rather than any video card. The sound issue may have had a delay while your computer was respoding to your changes to the nvidia control panel, and it was just figuring things out, might have taken a couple of minutes. Sound may also be a function of your HDMI set-up.. These links show you what happens when it works (FN + F8 is the key combination); one shows you about the sound I believe. http://www.youtube.com/watch?v=httuIXjGz... and http://www.ehow.com/how_5544182_switch-e... . Another problem was caused by a faulthttp://commweb-ps3.us.dell.com/support-f... These are just the first three results I got from my internet search. I hope this helps, if you have't worked it out. 8.May.2014

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