How Can I use All channels of ALC889a to have 5.1 surround?

nexusmac · #1 10-30-2008, 04:12 AM

I am using L8v4 kexts for onboard audio realtek ALC 889a.
MainBoard EP45-DS3R.

I can only get 2 channels out put.

I tried aggregate device option but I couldnt get any sound.

When I set aggregate device , I saw that volume control is disabled.
and When I look at system preferences > sound.
It says there is no output device.

How Can I solve this problem?