I upgraded my PC and bought an ASUS K8U-X Motherboard.
By the time I was still using Hoary, the sound "Just Worked". Then,
after installing Breezy, the sound wasn't working anymore.
I think it must a newer kernels' incompatibility.
Not even on Dapper Flight 4 it works.
The soundcard is an AD1888 with it's ALi M5455 chipset controller.
Sorry if this isn't the right mailing list to send problems like this.