Update to 10.6.8 broke my optical audio - any help?

I'm using a late 2009 Mac mini (10.7.1 installed) connected to a Pioneer by a optical cable (toslink-optical). I can't get any 5.1 audio working using vlc, mediaplayerx or xbmc.

That was working smart till 10.6.7...

still have problems with DTS and DD 5.1 with 10.7.1 on my MacMini (mid 2010), too. VLC doesn't play sound on digitaly output. Strange behaviour in XBMC: sometimes stereo comes back after playing a DTS or DD encoded movie and sometimes not. The version number of the kext (2.11) is the same as before in 10.7, only another date of change (2011-07-25). I will do a clean install of Lion (again) an check, if that helps (i guess not).

Or do VLC and XBMC need an update now because of the new api?

Well, if this can help, after installing 10.7.1 update I got AppleHDA version 2.1.1 with date 2011-07-25. Sound bug was not fixed so I tried a clean installation of Lion and after updating it, I still have version 2.1.1 with date 2011-06-18 🙂

Btw still no luck 😟

micha you have no analog sound??? do you get sound when you have nothing in your audio output?

The 10.7.1 update solved part of my problem, now I can switch from 5.1 audio to stereo and vice-versa without any issues.

But DTS sound doesn't work at all.

I'm using a Mac mini (mid 2011) connected to the TV through HDMI and the Home Theather using a optical cable from the TV digital audio output.

Yes correct: When I have nothing in my audio jack sound is played with the internal speaker. This still works. But when I want to use my earphones or external speaker (both analog) there is only silence.

10.7.1 bruke my working audio. Mac mini (mid 2011) was working perfectly, but after 10.7.1 update, DTS is no longer working. Actually sounds like rear channel audio is sent to front stereo speakers. I am using HDMI to TV, and optical to reciever.

By disabling DTS and AC3 output, I get stereo working.

What is Apple doing??? In 10.6.7 everything was working perfectly.

I decided to bite the bullet and upgrade my mac mini htpc to Lion.

After installing the 10.7.1 update (I almost forgot that) all seems to be well, audio through the optical out is working fine. Stereo output through iTunes & AC3 through Plex is switching OK.

Found the solution for my analog sound output problem - thanks to apple support: When I plug in headphones the output pane changes and there was a seperate "mute" checkbox - i unchecked it and now i have sound on external speakers again!

Just want to chime in and say that the latest Lion update alone 1.7.1 didn't help me at first but after clearing the PRAM on my brand new MacMini, audio seems to be back to normal.

cheers,
Stefan

I tried the same as StefanKoell on my mid 2011 mac mini with optical to reciever. But no luck. Still no DTS in Plex.

Strange thing is that I get audio. But seems like there is no center channel audio, only stereo speakers. Anything I have configured wrong?

I tried to reset PRAM and NVRAM and still no DTS audio on my Mac mini (mid 2011). All DTS audio sources are completely mute.

Same here, early 2009 MacBook Pro with OSX Lion 10.7.1 hooked up to a Z-5500 via optical out.

When VLC is set to use SPDIF when possible; I get no DTS sound whatsoever, Dolby Digital tracks are somehow decoded by VLC and sent as a stereo PCM stream.

When VLC is NOT set to use SPDIF; every source is output as a stereo PCM stream.

I hate to say this but this (or anything similar) never happened to me on any Windows machine, where you can roll back to a previous WORKING driver. Because why "fix" something that ISN'T broke?

I still have a problem with 10.6.8 Supplemental update when playing encoded MP4 or DVD's using Apple DVD player and / Quicktime on Mac Mini2,1 using Audio optcal out to Yamaha DSP AX757SE, certain portions of a movie soundtrack will cause the amp to go into standby. This all worked fine in 10.6.7 which i have now rolled back to. I'm guessing the optical inputs are being overloaded by the Mac's output and the Amp is shutting down to protect the speakers.

Hello everyone,
Despite the last update I still have problems on my MacMini to 2009 + Snow Leopard 10.6.8
On file and the DTS core from DTS-MA. It does not work or crash the application made ​​(XBMC, VLC ... ...)
it's really and truly desperate ...😢