TV Not Working With HDMI Cable?

Jan 15, 2012

So I bought this kind of HDMI cabel I have a HDMI port on the backside of my case and my motherboard should support it.So one end going into the HDMI port on the case and the other one goes into the TV, but my computer is not recognizing it.I'm trying to dual screen, I have a normal PC monitor which is working fine, however the HDMI for the monitor looks like this and works just fine, what could the error be?

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I have connected my hdmi cable as usual but this time i had on tv display NO SIGNAL. When i connect another pc to check the cable it seems to work correctly.The problem is coming from my pc.

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I have happily been viewing movies etc from my laptop to my TV via an HDMI cable for the last 2 years. However, I installed Windows 7 and at first I had no audio to my TV via the HDMI cable. I adjusted the settings via the sound icon on the taskbar, playback tab, changing whether the speakers or the Digital Output Device (HDMI), Sigmatel High Definition Audio Codec was the default. Eventually I got it to work.

Today, however it has stopped working again and no matter what changes I make, nothing works. When I right click on the playback device Digital Output Device (HDMI) and choose TEST, I get the message: Failed to play test tone. All sound comes through the laptop speakers.

I went to device manager and checked the driver for the codec and it was up to date. I downloaded all available updates from Windows and my laptops software updates and just now re-installed my sound and video drivers but to no avail.

When I was using Vista, to get the audio all I had to do was plug in the HDMI cable and the sound automatically went through the TV.

Does anyone have any ideas how to solve this?

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Jan 5, 2012

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Pc Wizard told me I have this onboard sound card: ASRock SB600 High Definition Audio Controller Pine Technology HD48x0 audio

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Feb 18, 2012

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Sep 10, 2012

What's been going on with my HDMI port. 2 nights ago I was watching a movie through my Dell Inspiron N5050 laptop through my Panasonic HDTV. Yesterday, I tried to connect my HDMI cable to my laptop and computer, but nothing happened...So frantically I've been searching everywhere and trying what I have so far with no progress...

1.System Restore to earlier date when my HDMI port was working.
2.Toggle Computer/Duplicate/Extended/Projector Only and nothing worked(Also made sure tv was on the right HDMI input)
3.Tried 3 different HDMI cables and HDMI inputs
4.Uninstalled all sound drivers and Display Adapter(Intel(R) HD Graphics Family
5.Contacted Dell and had them try to reinstall drivers
6. Checked BIOS but I couldn't find any enable/disable feature for video.
7. Took battery out of laptop waited for 30 seconds pressed power button to reset.

My Panasonic TV doesn't even show up under my playback devices and when I try and do a dual screen through screen resolution it says another display not connected. I've tried going Intel HD Graphics Control Panel as well...no such Luck! Beginning to think that my HDMI port on my laptop is broken.

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Dec 7, 2011

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My Equipment | Building a Home Theater With Your Office PC

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Multimedia Settings are set to "Allow computer to sleep" under "When Sharing Media" in the Power Management section.

Screensaver is disabled. I have overrided my audio driver, since powercfg command suggested it may be a conflict.

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