Updated to yosemite on macbook pro 13" and now I have no volume control.

I just recently updated to the newest OS and now I have no volume control. On the volume control icon it is empty and in the preferences it states, "internal speakers" has no internal control. Bluetooth is off and I have no ear pods connected. I hit the volume up or down key and all I get is the speaker icon with a circle and hash thru it under the icon. Is there somethin

Hello PaulH.Reed,
After reviewing your post, I have located an article that can help with audio issues. It contains a number of troubleshooting steps and helpful advice for the issue you are experiencing:
If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker
Follow these steps and test the sound after each one.
Go to Settings > Sounds and drag the Ringer And Alerts slider to turn the volume up.
If you can hear sound from the speaker, then the speaker works. Continue with these steps to find the setting or switch that's affecting the sound. If you can't hear sound from the speaker, contact Apple Support.
Make sure the Ring/Silent switch is set to ring. If you can see orange, it's set to silent.
Restart your device.
Open an app that has music or sound effects. Adjust the volume with the volume buttons or the slider in Control Center.
Go to Settings > Bluetooth and turn off Bluetooth.
If there's still no sound, connect a headset. If you can hear sound through the headset, remove it and clear any dust or debris from the headset jack of your device.
If the device is in a case, make sure that the case doesn't block the speaker.
Use a brush to gently clear any debris from the speaker and Lightning connector (or 30-pin dock connector). The brush should be clean and dry and have soft bristles.
Update your device to the latest version of iOS.
If you followed these steps and still hear no sound or distorted sound, contact Apple Support.
Thank you for contributing to Apple Support Communities.
Cheers,
BobbyD

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