My iMac shows as a late 2012. I also may have a theory/solution re: the headphone jack. The other day I couldn't get bluetooth sound with my jam xt bluetooth speaker though it would control iTunes so I knew it was paired. I thought nothing of it since I saw other posts of people saying they couldn't get sound on the Mac with this speaker but it had worked for me before. Yesterday evening I discovered that no headphones I had would work either though when I took the headphones out sound was fine through my iMac's internal speakers. I do have soundflower so I was showing a couple of items in output besides internal speakers but I wouldn't have seen anything but internal speakers if I hadn't had soundflower. So since I have braille I was able to experiment. I put the headphones in and interacted with the output table and at first I saw no earphone choice. After moving around for a few seconds the headphone choice finally appeared but there was also a dialog to confirm the new setting; had I not done this it would have reverted to internal speakers. I did so and my headphones worked with no problem but at that point there was no choice for internal speakers. The next time I inserted the headphones I didn't have this problem; the switch was automatic. This morning I went in again with headphones on; they worked but when I pulled them out I again had to go through the confirm dialog to change settings back. So while I don't know exactly why sometimes the transition is automatic and sometimes not, headphones and internal speakers will I blieve never both be seen in your output table at the same time; the switch completely replaces one designation with another. I actually think that may have been the case before too but if the switch happened without a problem, one didn't have to go looking in the output table. At any rate, I don't think this is a case of the iMac forgetting its own hardware; it has something to do with the switch not occurring automatically the the new choice not showing up immediately and replacing internal speakers. You also have to watch out for that confirmation dialog which could indeed cause you to reinstall if you end up with no sound and don't have braille. In that case, I would look for some way to reset the sound settings rather than reinstalling and I believe at one time I saw some tips for doing that but I am not sure if that was on this list or not. I do know that sound not switching is not a totally new phenomenon to Yosemite because I remember doing a reverse backup of superduper - backing up from my backup to my hard drive - to restore my settings for sound when I used a usb speaker, unplugged it and found myself without sound and unable to get it back. This does seem to be slightly different from that and my problem and yours may not be identical but I think it is something with the management of the switch back and forth from internal speakers.
-- Cheryl Go beyond the Christmas story this year; meet Immanuel (God with us), Jesus, the crucified Savior, Christ, the risen LORD!!! On Dec 15, 2014, at 7:17 AM, David Griffith <daj.griff...@gmail.com> wrote: There is some discussion of this problem on https://discussions.apple.com/thread/6638906 where people running Yosemite 2013 machines are still getting Mavericks Recovery Console. There is no official resolution except that someone at the bottom of the page says that downloading Yosemite again and reinstalling it then removed the Mavericks Recovery Partition. For the time being though I will take the approach of if it anin'si not broken do not try to fix it. David Griffithdespite On 15/12/2014 08:01, Cheryl Homiak wrote: > I am not sure how old your iMac is or whether or not this would be a factor, > but if I use cmd-r at restart and take the steps to reinstall, it is Yosemite > that is indeed shown as the install that will be done, not Mavericks. So I > don't think the problem is that Apple has failed to allow a Yosemite install > but unfortunately I don't know what the problem may have been when you > attempted this. > -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To post to this group, send email to macvisionaries@googlegroups.com. Visit this group at http://groups.google.com/group/macvisionaries. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To post to this group, send email to macvisionaries@googlegroups.com. Visit this group at http://groups.google.com/group/macvisionaries. For more options, visit https://groups.google.com/d/optout.
