mac Pro defaults to built in audio?

~Lukasdp · Nov 16, 2010

My shinny new Mac Pro Quad 2.8 defaults to the built in speaker and not my attached external logitec speakers. Every time I want to watch or listen to something I have to navigate to the sounds panel and select Line Out.
Everything is connected properly and this never happened on my MacBook Pro.
thoughts? Suggestions?
thanks!
~L

TheDoc · Nov 16, 2010

I believe this is a problem with all 2010 Mac Pros (at least that I've read).

I also need to reset preferences each time the machine restarts.

Garen · Nov 17, 2010

I have a 2010 6 core with Bose 5.1 surround sound system (USB) and have no problem with default Bose Sound System. Try zapping the Nvram it might work.

khollister · Nov 17, 2010

No problem here either with a 2010 quad. The startup chime is via the internal speaker, but by time I get to the desktop the default output audio is my Apogee Duet.

crw · Nov 17, 2010

I have the same issue. Every time I restart my Mac Pro switches back to the internal speakers from my optical out.

Pro tip: If you activate the volume menu extra, you can option-click it to get a list of outputs. Much quicker than going to System Preferences.

DualShock · Nov 17, 2010

Try SoundSource:

http://www.rogueamoeba.com/freebies/

~Lukasdp · Nov 17, 2010

Garen said:
I have a 2010 6 core with Bose 5.1 surround sound system (USB) and have no problem with default Bose Sound System. Try zapping the Nvram it might work.

thanks everyone! could someone please explain what zapping the Nvram is?

khollister · Nov 17, 2010

~Lukasdp said:
thanks everyone! could someone please explain what zapping the Nvram is?

Non-volatile RAM - it is normally called PRAM (Parameter RAM). It is memory that holds HHW configuration details that the EFI (firmware) uses.

To reset it, hold down Cmd, Option, P & R at the same time while the machine boots (do it before apple shows on the gray screen)/ After you get the second startup chime, release the keys and it will boot normally

EDIT -here's the official Apple tech note:

http://support.apple.com/kb/ht1379

lemonade-maker · Nov 17, 2010

Its permission on the /Library/Preferences/Audio directory.

My post in another forum:

I deleted the Audio dir and created a new one as root in the terminal. Can do it like this:

sudo mkdir /Library/Preferences/Audio

then set permissions, er owner:

sudo chown -R _coreaudiod:admin /Library/Preferences/Audio

Then change the input in the sound pref pane using an admin account. Should create the file.

~Lukasdp · Nov 17, 2010

lemonade-maker said:
Its permission on the /Library/Preferences/Audio directory.

My post in another forum:

I deleted the Audio dir and created a new one as root in the terminal. Can do it like this:

sudo mkdir /Library/Preferences/Audio

then set permissions, er owner:

sudo chown -R _coreaudiod:admin /Library/Preferences/Audio

Then change the input in the sound pref pane using an admin account. Should create the file.

aces, ill try that when I get home. thanks!

ActionableMango · Nov 17, 2010

TheDoc said:
I believe this is a problem with all 2010 Mac Pros (at least that I've read).

My 2010 refurb works fine. Audio output stays where it was last set.

simplymuzik3 · Nov 17, 2010

I have the same problem. 6 Core 2010. I have to option click on the sound icon at the top and change output each time. Good thing I only reboot once a week.

loungecorps · Nov 17, 2010

I have experienced this issue also. But only with the headphone jack on the front of the case. Since I now have all my equipment setup through the back and sometimes use headphones, it's nice not to have to manually switch back and forth.

Search

Search

mac Pro defaults to built in audio?

~Lukasdp

macrumors newbie

Attachments

TheDoc

macrumors member

Garen

macrumors regular

khollister

macrumors 6502a

crw

macrumors regular

DualShock

macrumors 6502a

~Lukasdp

macrumors newbie

khollister

macrumors 6502a

lemonade-maker

macrumors 6502

~Lukasdp

macrumors newbie

ActionableMango

macrumors G3

simplymuzik3

macrumors 6502a

loungecorps

macrumors member

Our Staff