Q: After update to 10.8.5 HDMI sound stops working after sleep mode

Have you looked at the previous discussions listed on the right side of this page under the heading "More Like This"? At least one seems applicable.

I did reinstall as Kappy suggested with combo 10.8.5 update and it seems to have solved the problem...so far anyway!  Give it a try!

Yes, same problem with late 2012 quad core running HDMI into Samsung monitor.

"I did reinstall as Kappy suggested with combo 10.8.5 update and it seems to have solved the problem...so far anyway!  Give it a try!"

I cannot find that post in related threads.  Do you have a link?

OK, found the link to the 10.8.5 combined update.  That solved the problem on my mini as well.

http://support.apple.com/kb/DL1676

How do you go about a re-install with the combo update if already updated to 10.8.5?

ec51 wrote:

 

How do you go about a re-install with the combo update if already updated to 10.8.5?

Just download the update and run it.  In essence you are just "reinstalling" what you have.

user1724 wrote:

 

OK, found the link to the 10.8.5 combined update.  That solved the problem on my mini as well.

 

http://support.apple.com/kb/DL1676

Never mind.  This does not fix the problem.  Seemed to for a test, but today back to no sound on wake up.

This is not just a Mac Mini problem.  I've found comments from people with all kinds of Mac, with any kind of external sound device, who all have this same issue.

The common factor is Mountain Lion.

Apparently there is a new build (12F42) which is supposed to fix this.

http://www.gadgetguide4u.com/new-os-x-1085-build-number-12f42.html

Apple released it to their employees on the 25th Sept.

Yet they don't even seem to have told their support people about it.  My local apple store replaced my Mac Mini just on Sunday, because they didn't know why it was behaving like that.  Needless to say, the new one has the same problem.

Here's hoping that build is available soon ...

Hello there,

Got same issue, mac mini 2012, upgraded to 10.8.5, audio does not work after sleep, have to restart for it to work.

Will try combined update and let you know.

Looks like another handshake issue...

Cheers

Did not work for me... will have to wait for the update...

try the latest update

http://support.apple.com/kb/DL1686?viewlocale=en_US&locale=en_US

The patch is now available through the App Store > Updates as a Supplemental Update

So far, so good ...