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HP laptop no sound from speaker but there is sound through headphone
I have hp dv1738od and have upgraded to Windows 7, previously Windows XP. Everything seem to be working ok except, for the sound. Window 7 automatically installed the driver, and said the sound card was working properly. But there was no sound through speaker.
I removed the driver and reinstall the driver that I got from HP website that work for Window Vista. Installation went through with no problem and Device manager indicated no isssue on sound driver. However there was still no sound coming out from the speaker, only through headphone jack.
I read tons of forums, and some has suggested that it may be the jack connection. I tried plugging in and out numerous time, and that did not solve the issue. Sound could be heard for like a sec, when headphone was being plugged out but it goes away quickly. To determine if it was hardware or software issue, i reinstalled Window XP and there was sound through speaker. So for sure it is not the speaker issue.
If anybody can help me out, I greatly appreciated.