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Oldworld G3 / Terratec EWX24/96 sounds terrible



Hi there!

I have a combination of a so called "beige" G3 and a Terratec EWX 24/96 with an Envy24-Chipset running an 2.6.7-Kernel (ALSA-Sound-Driver). The module loads without any error but if f.e. the arts-soundserver wants to play a sound, it almost sounds like a hanging CD but I can't recognize anything from the original sound in it. I tried several Kernels (also 2.4.x), self-compiled and original Debian ones: Sound is always bad!

The Terratec-Card is mainly build for Intel-PCs, which - as you all might know - have a maximum of 16 IRQs. If the ice1712-module is loaded into the kernel, "cat /proc/interrupts" prints out that the card's working on Interrupt 25. My guess is (respectively I remember reading something like this several months ago, that) several cards originally manufactured for Intel-PCs can't handle with an interrupt higher than 15.

So, I tried to find some documentation about any module-argument to change the interrupt chosen by the mac. I knew there have been cards with kernel-arguments for changing the interrupt, but that have been only ISA-Cards. So: Does anyone know how to change an interrupt given to a PCI-Card, especially on PowerMacs, specially on oldworld-PowerMacs?!?

Well, of course: I might be totally wrong with my thoughts about the interrupts. If anyone has a different explanation about my bad sound I would greatly appreciate any help!

Thanks a lot!
Mitsch



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