![]() Get some kind of optical portable or device Mechanically probe from the outside (again) Look further for software solutions, somehow overriding the computer's belief that something is plugged in OS X doesn't seem to support this My next step, unless I get a better idea, is to open the computer case in the hope that I can inspect the port from the inside. ![]() I did find suggestions recommending things like poking a toothpick in the hole and trying to ‘unlatch’ some mechanism which (I assume) senses the presence of the plug. I did try to fix the problem by putting in a digital audio connector, but that didn’t help. As far as the computer is concerned, it is outputting digital audio and the speaker is disabled. ![]() The System Preferences can sense but not control the state of the digital audio. I think the OS controls which functionality the computer decides to use, but consults some hidden hardware in the socket. I have discounted problems with the speaker as the startup sound goes directly to the built-in speakers. It is an old MacBook with separate headset & mic ports. The digital audio out port gets stuck (a red glow appears from within the socket). My 2009 MacBook’s speaker doesn't work (most times).
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