I don't know what happen but audio simply stopped working after I added a gpu in HP Pavilion Media Center TV m8000n. I am upgrading the system by a new gpu and a 2GB ram. I connected that and then restarted the pc. First there was no display. But later when I removed and card and reconnected it back, it started working. But now there is no audio. I did not touch anything. I had connected small desktop speakers on the front side.
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