Audio Completely Stopped Working After Installing HD Driver

Sep 3, 2012

I have Compaq Presario C784TU laptop with windows 7 updated on it. Recently while watching a movie, the audio suddenly started giving problems. I updated my audio driver in the device manager and it installed Conexant High Definition Audio Driver 221. After installing that, my audio completely stopped working. Also,that my headphones are working but only the speakers have stopped working. I have checked all the settings and also I don't think there is any problem with the hardware.

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The error message says :
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[Code].....

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Jan 17, 2012

First i want to apologize for my bad english since i'm italian So.. I just installed windows7 ultimate and suddenly the right audio channel is not working.

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2) I tried to download latest version of Realtek

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4) Since i just installed everything i tried to format and re-install, but i got no results

5) I tried the bit/hz thing but with ANY configuration i don't get any result

6) And now a very odd thing: since i got an external audio interface i tried even with that. right channel still not working.

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I've tried the GPU (evga 460gtx) on my friend's computer reproducing the crash-inducing environment (playing some games on max details) and it works flawlessly so I was able to remove 'faulty card' from my suspect list.

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Around 2 months down the line low and behold the same problem happened again, I found a solution and installed a program called driver robot, I used it and installed many outdated drivers, this seemed to fix the problem. For about 6 months, now it has happened again, my computer has now shut down and goes into a constant restart loop, as it is doing this the screens that show up are littered with dots and lines of many colours, I just need workaround on this, preferably without loosing all of my files.

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First of all every driver I have found and tried are self installing ".exe" driver files and cannot find anything where I can manually install through the "add new hardware wizard". The problem with the .exe files is that some of them say "this version is not supported my this version of windows" others freeze halfway through installation, and others seem like they have installed correctly giving me a prompt saying so and requiring me to restart, but once restarted, still nothing.I have also tried running each of the driver installations in "XP compatability mode" but still the same problems described above. I had a similar issue with my graphics driver and solved it by installing a legacy driver for it. I have tried the same for this audio driver, but like I stated before I only have .exe installation files and cannot manualy search for the driver to install the legacy driver. I do have the original driver (XP driver) that came with my computer and obviously tried that one, but notihng I have tried has worked for me.

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Nov 17, 2012

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my PC specs:

Windows 7 Ultimate 64 bit
CPU Processor: Intel Core 2 Duo E7300
Motherboard: Model: DG31PR

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