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Hdmi Sound Out Disappeared


I'm running windows 7 ultimate on an hp 8710p laptop, and i have it connected via an hdmi cable to my hdtv. I was running vista before with no problems, and after i upgraded to windows 7, it still worked perfectly. I used to have to open the sound window from control panel after i plugged the laptop into the tv, i had two playback devices: speakers and digital audio (s/pdif), you would have to right click on digital audio and set it to the default device and then i would have sound on the tv, and off course i would have to change the setting again after i unplugged it from the tv.
Yesterday after i plugged it back into the tv, there was no sound. Steps i have taken to troubleshoot:

1. Plugged other hdmi devices into the tv to see if they got sound.
2. Plugged the laptop into other hdmi tv's to see if i could get sound there.
3. Downloaded the drivers from the hp website for both the graphics card and the sound card, and reinstalled them.
4. Ran a windows update to see if there isn't maybe a patch.
5. Ran the playing audio troubleshooter
6. Checked in device manager that all devices are working properly and not disabled
7. Updated the drivers in device manager (they just said that the latest drivers are installed)
8. Checked services to ensure that all services that has anything to do with audio or video are running
9. Checked the volume mixer to ensure that the volume is turned up and not muted
10. Uninstalled the graphics and sound cards, rebooted, reinstalled them, rebooted, etc.
11. Rebooted
12. Trust me, i've tried it all.

I see hundreds of postings everywhere, mostly dealing with guys that have upgraded from vista to windows 7, and then losing sound. Mine was working on windows 7, so i know that there is some hidden setting somewhere that we are not aware of, i've already spent a couple of hours reading hundreds of posts everywhere, but the troubleshooting they talk about, i've tried it all, but to no avail.


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Hdmi Sound Problem

I recently purchased a projector for displaying movies on my laptop. I also purchased a hdmi cord to connect the computer to the projector and use a set of old desktop computer speakers. I normally connect the hdmi to the projector via the laptop and plug my computer speakers into my laptop for sound. Just recently the sound does not work. I have tried everything. Speakers work fine on laptop alone, speaker works fine on the projector, computer speakers are fine as well.

The only time the sound does not work is when the hdmi is plugged in. I know that the cord is working for the video component because it will allow the computer to come up on the screen shen using the hdmi cord, except no sound will come from the laptop when the speakers are added or even without. As soon as ou disconnect the hdmi the sounds work fine. I tried every "check" i could find and nothing works. It has worked fine in the past.


Posted On: 2010-05-16 . View Related Posts . . View 2 Replies .

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I have checked for updated drivers and the ones installed seem to be the latest and sony have no support for upgrades to windows 7. I am really stuck and frustrated, i hate being beaten, can you help?


Posted On: 2010-05-01 . View Related Posts . . View 2 Replies .

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http://i142. Photobucket.com/albums/r88/flappersmkipp/eec25b9d.jpg

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Normal. Gif at pingy - free image hosting

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Messedup. Gif at pingy - free image hosting

Nvidia driver:
8. 16. 11. 9107

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http://pingy. Us/?V=settings. Gif


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Report time[hr:mm:ss]: 20:4:58
Driver version: 8. 15. 10. 2119
Operating system: windows 7 (6. 1. 7600)
Default language: english (united kingdom)

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