--- 75283fbb4b3fd1723d62a73baf663c14f37f41d3
+++ c2311f85a331605d2c525c564704f07d5829b0fa
@@ -849,6 +849,7 @@ struct snd_m3 {
 	struct snd_kcontrol *master_switch;
 	struct snd_kcontrol *master_volume;
 	struct tasklet_struct hwvol_tq;
+	unsigned int in_suspend;
 
 #ifdef CONFIG_PM
 	u16 *suspend_mem;
@@ -884,6 +885,7 @@ static struct pci_device_id snd_m3_ids[]
 MODULE_DEVICE_TABLE(pci, snd_m3_ids);
 
 static struct snd_pci_quirk m3_amp_quirk_list[] __devinitdata = {
+	SND_PCI_QUIRK(0x0E11, 0x0094, "Compaq Evo N600c", 0x0c),
 	SND_PCI_QUIRK(0x10f7, 0x833e, "Panasonic CF-28", 0x0d),
 	SND_PCI_QUIRK(0x10f7, 0x833d, "Panasonic CF-72", 0x0d),
 	SND_PCI_QUIRK(0x1033, 0x80f1, "NEC LM800J/7", 0x03),
@@ -1613,6 +1615,11 @@ static void snd_m3_update_hw_volume(unsi
 	outb(0x88, chip->iobase + SHADOW_MIX_REG_MASTER);
 	outb(0x88, chip->iobase + HW_VOL_COUNTER_MASTER);
 
+	/* Ignore spurious HV interrupts during suspend / resume, this avoids
+	   mistaking them for a mute button press. */
+	if (chip->in_suspend)
+		return;
+
 	if (!chip->master_switch || !chip->master_volume)
 		return;
 
@@ -2424,6 +2431,7 @@ static int m3_suspend(struct pci_dev *pc
 	if (chip->suspend_mem == NULL)
 		return 0;
 
+	chip->in_suspend = 1;
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 	snd_pcm_suspend_all(chip->pcm);
 	snd_ac97_suspend(chip->ac97);
@@ -2497,6 +2505,7 @@ static int m3_resume(struct pci_dev *pci
 	snd_m3_hv_init(chip);
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+	chip->in_suspend = 0;
 	return 0;
 }
 #endif /* CONFIG_PM */