Apple MacBook Air "sound device" Questions

MacBook Air sound/disappeared From one day to the next the sound has disappeared.  I have checked the sound preferences and the mute box is ticked but I cannot un-tick it.  Under the sound ...

...sound/output device Rebooted Opened system preferences/sound/output device and unplugged headphones Internal speakers magically appeared. FYI with my problem Optical device was showing on output ...

...sound device in macbook air Apple menu (top left) System Preferences > Sound > Output tab select the Internal Speakers check your output volume and make sure the Mute checkbox is unchecked. ...

...sound! look on device manager on the sign of speaker. is there yellow sign ?if so click right mouse on it. ( keeping your cd bord ) click on sound driver. 2/ GO control panel click sound and ...

...thing that no device is selected. Can someone give me more specific wiggling instructions? go to prefrence pane select sound then output bar and arrange the volume labeling , can you hear some

...sound on my Macbook Air stopping randomly. Up until now, my solution has been to restart. This has worked until today, when the speaker image on the volume is grayed out and will not even go up or ...

I have no sound on my MacBook air. HELP! The Mute button in Sound is dimmed. And the screen displays: NO DEVICES FOUND. PLEASE HELP! I've tried Restarting and Shutting Down my computer several

...what "30 pin" refers to. It sounds irrelevant to your question or am I missing something? Try this: Go to System Preferences, click on Sound. Make sure you are on the Output tab. Select your

sound device is detecting.Restart the system and check againg.if still the issue persist then format the drive and install freshly issue will get solved. And if the start up chime is not there then it

Sound' > Select 'Playing Audio' If a driver is needed, it is recommended that you run Windows Updates. If Windows Update doesn't install a driver for your device, go to your computer manufacturer's