Sound won't work when my MacBook is connected to my TV via HDMI

I have my MacBook connected to my HDTV via mini DVI to HDMI and the picture is perfect, but I cannot make the sound work. I've tried going to sound under system preferences but my tv is not listed as a device. Do you know how I can make the sound work?

You need an audio cable to connect your Mac's audio out port to your TV's audio in port. The minidisplayport does not send sound.

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Wi-Fi won't work when mac restarted after connecting Samsung Galaxy s3 via USB

I've been having this problem for a few months now, and it's stopping me from syncing my Samsung Galaxy s3 (I changed from iPhone and expect responses telling me to go back, but that's not helpful right now).
1.) I have Wi-Fi connection working fine on my mac,
2.) Connect Galaxy s3 to sync it with Kies, - WIFI working fine on mac still however notice Samsung modem connection appears in my network connections on mac.
3.) Remove Galaxy s3 and at some point in the next few days reboot my mac.
4.) Wifi is automatically switched off, when turned on, can't find any networks. Forcing me to go to network connections, make the wifi service in-active and then click apply, then remove the service all-together and click apply. Then reboot my mac and create a new wi-fi connection into my network connections to finally get wi-fi to work again. Wi-Fi automatically connects back to my wifi network.
I'm sick of doing this every time I connect my phone. Mountain Lion 10.8.2, MacBook (alluminium unibody) 8gb ram, 2.4 ghz core2Duo.
Any ideas how to prevent the samsung creating it's own modem in my network connections?
Anyone with similar set up experiencing the same problem?
Thanks
Matt

Try accessing the router through your favorite Web Browser and enabling Wi-Fi through there. The Wi-FI should be enabled by default on this router.
Web Admin: http://192.168.1.1/
The default login should be one of the following:
admin/password
admin/password1
admin/admin
admin/admin1
admin/verizon
admin/verizon1
If the username and password is admin/password, the modem will ask you to change at least the password to something else. Once in, you should be able to check the Wi-Fi settings and network name. Finally, once you've saved the settings, take a backup of the modem's configuration file if possible, and then reboot the modem to ensure the settings stick.
As a note, I strongly suggest using WPA2-PSK AES Encryption as the only form of encryption. Mixed mode or WEP can cause issues, especially with Apple Devices, and presents a security risk to the network. Also as a note, make sure SSID Broadcasting is enabled for the ActionTec. Otherwise, you won't see the name by simply scanning for it, and will have to manually enter in the name of the network.
========
The first to bring me 1Gbps Fiber for $30/m wins!

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Hi Jannine2131,
Based on your description, it sounds like you may need to have your iPod Touch serviced. You may find the following page helpful:
Service Answer Center - iPod
http://support.apple.com/kb/index?page=servicefaq&geo=United_States&product=ipod
Regards,
- Brenden

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i got a new mac book pro yesterday my sound wont work i have the volume up full on my key board and up the top on my home screen what do i do?

You can return a new Mac within 14 days of purchase.
A new Mac is in warranty for 1 year from the date of purchase.
A new Mac comes with 90 days of free tech support from AppleCare.
AppleCare: 1-800-275-2273
Call AppleCare.
Best.

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Insert a headphone jack and remove it and see if the light goes out. The red light indicates the switch didn't switch from head phone to your Mac's speakers. Some folks have actually used a match stick to undo the switch.

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Then that sounds to be the Apple ID that owns this Mac, the OS and any preinstalled apps. Did that Apple ID set the Mac up when new?

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- Try cleaning out/blowing out the headphone jack. Try inserting/removing the plug a dozen times or so. (this was already sugested) There is a little switch in the headphone jack that disconnects the speaker when the headphone jack is inserted.
Try the following to rule out a software problem
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Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
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Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
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- Make an appointment at the Genius Bar of an Apple store. Seems you have a bad headphone jack.
Apple Retail Store - Genius Bar
If not under warranty Apple will exchange your iPod for a refurbished one for this price. They do not fix yours.
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A third-party place like the following will replace the jack for less. Google for more.
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I just got an iphone 4 yesterday. I got everything all set up and working great. When I woke up last this morning, my ipod has no sound and the albums covers are all mixed up. I've checked all my settings and volume control. My text sound won't work eithe

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Check this document.
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Hey saxon198
If it is just the one user account, then the next step would be to migrate the data that you have to a new user. The best method is to copy your Home Folder to an external hard drive. The next step after that is complete is to delete the user that is causing the issue. Then all you have to do is to copy your data back over. Just copy the contents of the documents folder into the new documents folder instead of replacing it. Now things that probably will not make the move unless you have iCloud or another syncing service is Contacts, Calendars and Notes. You can export those if needed. If it seems confusing or to daunting, then the next step would be to contact Apple Support for further help. I have provided a link to do so with multiple different options for you.
Isolating an issue by using another user account
http://support.apple.com/kb/TS4053
OS X: Manually migrating data from another Mac
http://support.apple.com/kb/HT6101
Contact Apple Support
https://www.apple.com/support/contact/
Regards,
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HP 6120n Sound won't work bought replacement sound card not sure of what to do

HP 6120n - Using win 7 - Sound won't work
Tried restarting and Troubleshooter and it not not solve the problem
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Hello @4u2bu,
I understand that the audio is not working on your HP Pavilion a6120n Desktop PC running Windows 7 and you are wondering it you should install the new audio card you purchased. I would recommend that you first try the steps set out in the HP Support document: No Sound from the Speakers or Headphones (Windows 7), which has been designed to address audio issues with computers running Windows 7.
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I hope I have answered your question to your satisfaction. Thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
I work on behalf of HP
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"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

Sound won't work when my MacBook is connected to my TV via HDMI

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