No sound from internal speakers or headphone jack

HP 15 notebook PC
windows 8.1 64-bit
not getting any sound from internal speakers at all. no sound from headphone jack. was working fine yesterday. updates to drivers are good. i can see sound signal in the speaker bar. please help.

Hi,
Can you post back with the full Model No. and Product No. of your Hp 15 series notebook - see Here for a guide on locating this information.
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DP-K
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By default, OSX will only let you have one interface active at any one time - so if you specify the ART as your interface to get sound in, you don't have access to your regular interface to listen to it.
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Try plugging the headphones in and out 10-12times, while toggling the volume and mute buttons.
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Click "Go" menu in the Finder menubar.
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Right click these two files and select "Move to Trash".
com.apple.audio.DevicesSettings.plist
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Go to Applications/Utilities/Audio MIDI Setup/Built-In Output/Output and in Format change from the default 2ch-24bit integer to any other format (say, 2ch-32bit float). This should activate the headphone jack. I moved the format back to the original 2ch-24 integer setting and the headphones continued working. So it seems that (for some reason) the original default setting does not recognize a headphone being inserted, but after performing this "resetting" it seems to come to its senses and behave properly from then on
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No sound from internal speakers or headphones

Hi
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Just bought it?
You can return any Apple product within 14 days of purchase.
You have 90 days of free tech support Apple from the date of purchase.
1-800-275 2273
Best.

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Seems like you already tried everything.
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Welcome to Apple Discussions.
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Hi @cblake118 ,
I am sorry, but to get your issue more exposure, I would suggest posting it in the commercial forums, since this is a commercial product. You can click here for the link.
http://h30499.www3.hp.com/hpeb/
I work for HP

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You may need to reset PRAM/NVRAM.
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Hi,
I hope you can give some advice.
New to all this so apologies if protocols are broken etc
New 20" imac, running Leopard.
very thin, tinny sound from internal speakers (similar to hearing someone's else's walkman
on the train). when I plug headphones in its great no probs.
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Hadders

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8. Disconnect all wired peripherals except keyboard and mouse, if applicable. If more than one display is connected, disconnect all extra ones. Restart and test.
9. If you have a MacBook Air, turn off Bluetooth and restart.
10. Start up in safe mode. Don't log in; just restart as usual when the login screen appears. When you do, make sure the words "Safe Boot" do not appear in the login screen. If they do, the system is still in safe mode and sound won't work.
11. Reset the NVRAM.
12. Reset the SMC.
13. Triple-click anywhere in the line below on this page to select it:
/Library/Preferences/Audio
Right-click or control-click the highlighted line and select
Services ▹ Reveal in Finder (or just Reveal)
from the contextual menu.* A folder should open with an item selected. Move the selected item to the Trash. You may be prompted for your administrator login password. Restart the computer and empty the Trash. Recreate your settings in the Sound preference pane.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.
14. Reinstall OS X after backing up all data.
15. Make a "Genius" appointment at an Apple Store.

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Check the link below:
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** Say thanks by clicking the "Thumb up" icon which is on the left. **
** Make it easier for other people to find solutions, by marking my answer with "Accept as Solution" if it solves your issue. **

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Hello @Landon3400 ,
Welcome to the HP Forums!
I understand your notebook only has sound, through your headphones.
Try updating the driver with the following download and tell me if it resolves the issue: IDT High-Definition (HD) Audio Driver.
Furthermore, check out this thread that has a lot of great suggestions for issues with no sound: Troubleshooting Guide: Audio does not Work after a Certain Period of Time and this document for no sound in Windows 8: No Sound from Speakers (Windows 8)
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For information on finding your product and model numbers click here: How Do I Find My Model Number or Product Number?
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I look forward to your reply!
Let me know if this helps!
Please click the "Kudos, Thumbs Up" at the bottom of this post if you want to say "Thanks" for helping!
Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
The Great Deku Tree
I work on behalf of HP.

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Hi,
Check the link below:
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** Say thanks by clicking the "Thumb up" icon which is on the left. **
** Make it easier for other people to find solutions, by marking my answer with "Accept as Solution" if it solves your issue. **

No sound from internal speakers or headphone jack

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