Internal Speakers

Question

So I've got an issue here where my headphones work fine in the line out jack at the back of my compy, but when I unplug them, my built in speakers refuse to cooperate. What I get when I try to mute or unmute them by pressing the button on the keyboard is the normal volume control pop-up except the speaker graphic is grey, the volume indicator is at full (even though no sound comes through) and there's a little circle with a line through it at the bottom. It's not terribly bad since I mostly use my headphones, but it could get irritating in the future. Thanks in advance.

Answer 1

To reset the SMC:
+Resetting the SMC can resolve some computer issues such as not starting up, not displaying video, sleep issues, fan noise issues, and so forth. If your computer still exhibits these types of issues after you've restarted the computer, try resetting the SMC. To reset the SMC on an iMac (Early 2006), iMac (Mid 2006), iMac (Late 2006), or Mac mini (Early 2006):+
+From the Apple menu, choose Shut Down (or if the computer is not responding, hold the power button until it turns off).+
+Unplug all cables from the computer, including the power cord and any display cables.+
+Wait at least 15 seconds.+
+Plug the power cord back in, making sure the power button is not being pressed at the time. Then reconnect your keyboard and mouse to the computer.+
+Press the power button on the back to start up your computer.+
+The iMac (Early 2006) and later models do not have a button on the main logic board for resetting the SMC, which eliminates the need to remove the computer's cover to reset it (as required for some earlier models).+
To repair Permissions go to Hard Drive>Applications>Utilities>Disc Utility>..select your disc and click on Verify Permissions.
bon chance.
Message was edited by: musashi88