--- alsa-driver-0.9.0rc6/alsa-kernel/pci/ac97/ac97_codec.c	2002-10-30 15:20:08.000000000 +0100
+++ alsa-driver-0.9.0rc6-ae/alsa-kernel/pci/ac97/ac97_codec.c	2002-11-26 10:21:13.000000000 +0100
@@ -1946,6 +1946,51 @@
  *  PCM support
  */
 
+
+// AE: Updating SPDIF Clock
+static void ae_set_spdif(ac97_t *ac97, unsigned short rate)
+{  
+	unsigned short old, new;
+	
+	// Get new SPDIF Rate
+	switch(rate) {
+	case 48000:
+		rate = AC97_SC_SPSR_48K;
+		break;
+		
+	case 44100:
+		rate = AC97_SC_SPSR_44K;
+		break;
+		
+	case 32000:
+		rate = AC97_SC_SPSR_32K;
+		break;
+		
+	default:
+		rate = AC97_SC_SPSR_48K;
+		break;
+	}
+	
+	
+	// Do we need to change SR ?
+	old = ac97->regs[AC97_SPDIF];
+	new = (old & ~  AC97_SC_SPSR_MASK) | rate;
+	if (old != new) {
+		
+		// Disable SPDIF
+		snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
+		
+		
+		// Set SPDIF out RATE
+		snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, rate);
+		
+		
+		// Re-Enable SPDIF
+		snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF);
+  }
+}
+
+
 int snd_ac97_set_rate(ac97_t *ac97, int reg, unsigned short rate)
 {
 	unsigned short mask;
@@ -1978,7 +2023,13 @@
 	if (tmp > 65535)
 		return -EINVAL;
 	snd_ac97_update(ac97, reg, tmp & 0xffff);
-	snd_ac97_read(ac97, reg);
+	rate = snd_ac97_read(ac97, reg);
+	
+	// AE: Set SPDIF out RATE  
+	if (reg == AC97_PCM_FRONT_DAC_RATE) {
+	  ae_set_spdif(ac97, rate);
+	}
+
 	return 0;
 }