Comment 1 for bug 346170

I tried all of the following options for /etc/modprobe.d/alsa-base and /etc/modprobe.d/options:

 ALC882/885
   3stack-dig 3-jack with SPDIF I/O
   6stack-dig 6-jack digital with SPDIF I/O
   arima Arima W820Di1
   targa Targa T8, MSI-1049 T8
   asus-a7j ASUS A7J
   asus-a7m ASUS A7M
   macpro MacPro support
   mbp3 Macbook Pro rev3
   imac24 iMac 24'' with jack detection
   w2jc ASUS W2JC
   auto auto-config reading BIOS (default)
   3stack-dig 3-jack with SPDIF I/O
   6stack-dig 6-jack digital with SPDIF I/O
   3stack-6ch 3-jack 6-channel
   3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
   6stack-dig-demo 6-jack digital for Intel demo board
   acer Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
   acer-aspire Acer Aspire 9810
   medion Medion Laptops
   medion-md2 Medion MD2
   targa-dig Targa/MSI
   targa-2ch-dig Targs/MSI with 2-channel
   laptop-eapd 3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
   lenovo-101e Lenovo 101E
   lenovo-nb0763 Lenovo NB0763
   lenovo-ms7195-dig Lenovo MS7195
   haier-w66 Haier W66
   3stack-hp HP machines with 3stack (Lucknow, Samba boards)
   6stack-dell Dell machines with 6stack (Inspiron 530)
   mitac Mitac 8252D
   clevo-m720 Clevo M720 laptop series
   fujitsu-pi2515 Fujitsu AMILO Pi2515
   auto auto-config reading BIOS (default)

I tried all of that in fresh, clean, installs of 8.10 and 9.04 Beta. Sound only comes out of the headphone jack. Sound does not come out of the speakers. This is the newest iMac released in March 09, (Model 9,1)

I'll be happy to be a guinea pig for fixing this, since I know the hardware is new and not many people have it yet.