--- alsa-driver-1.0.4.orig/alsa-kernel/pci/ac97/ac97_codec.c	2004-03-29 08:05:00.000000000 +0100
+++ alsa-driver-1.0.4/alsa-kernel/pci/ac97/ac97_codec.c	2004-04-19 00:39:40.748668056 +0100
@@ -1790,6 +1790,8 @@
 		if ((err = snd_ac97_read(ac97, AC97_REC_GAIN)) == 0x8a06)
 			ac97->scaps |= AC97_SCAP_AUDIO;
 	}
+	// xbox fails test because of no audio input or mixer hardware, so force audio on
+	ac97->scaps |= AC97_SCAP_AUDIO;
 	if (ac97->scaps & AC97_SCAP_AUDIO) {
 		ac97->caps = snd_ac97_read(ac97, AC97_RESET);
 		ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);