Fonctionnement du son (entrée/sortie) sous Trixie et plus généralement Linux

Tags: #<Tag:0x00007f4e5e68c370> #<Tag:0x00007f4e5e68c0f0> #<Tag:0x00007f4e5e69bed8>

Merci
https://0x0.st/PmX3.txt

La différence majeure semble être l’apparition d’une entrée analogique sur la deuxième carte son (car il y a deux cartes)

[/tmp]$ diff -urN AV.txt AP.txt 
--- AV.txt	2026-02-12 19:05:09.743330177 +0100
+++ AP.txt	2026-02-12 19:05:32.192796938 +0100
@@ -1,4 +1,4 @@
-Card #40
+Card #44
 	Name: alsa_card.pci-0000_01_00.1
 	Driver: alsa
 	Owner Module: n/a
@@ -28,9 +28,9 @@
 		device.vendor.name = "NVIDIA Corporation"
 		media.class = "Audio/Device"
 		factory.id = "14"
-		client.id = "34"
-		object.id = "40"
-		object.serial = "40"
+		client.id = "35"
+		object.id = "41"
+		object.serial = "44"
 		object.path = "alsa:pcm:1"
 		alsa.card = "1"
 		alsa.card_name = "HDA NVidia"
@@ -83,7 +83,7 @@
 				card.profile.port = "3"
 			Part of profile(s): output:hdmi-stereo-extra3, output:hdmi-surround-extra3, output:hdmi-surround71-extra3
 
-Card #41
+Card #45
 	Name: alsa_card.pci-0000_00_1f.3
 	Driver: alsa
 	Owner Module: n/a
@@ -114,9 +114,9 @@
 		device.vendor.name = "Intel Corporation"
 		media.class = "Audio/Device"
 		factory.id = "14"
-		client.id = "34"
-		object.id = "41"
-		object.serial = "41"
+		client.id = "35"
+		object.id = "42"
+		object.serial = "45"
 		object.path = "alsa:pcm:0"
 		alsa.card = "0"
 		alsa.card_name = "HDA Intel PCH"
@@ -127,6 +127,7 @@
 		off: Éteint (sinks: 0, sources: 0, priority: 0, available: yes)
 		output:analog-stereo+input:analog-stereo: Duplex stéréo analogique (sinks: 1, sources: 1, priority: 6565, available: yes)
 		output:analog-stereo: Sortie Stéréo analogique (sinks: 1, sources: 0, priority: 6500, available: yes)
+		output:iec958-stereo+input:analog-stereo: Sortie Stéréo numérique (IEC958) + Entrée Stéréo analogique (sinks: 1, sources: 1, priority: 5565, available: yes)
 		output:iec958-stereo: Sortie Stéréo numérique (IEC958) (sinks: 1, sources: 0, priority: 5500, available: yes)
 		output:analog-surround-21+input:analog-stereo: Sortie Surround analogique 2.1 + Entrée Stéréo analogique (sinks: 1, sources: 1, priority: 1365, available: yes)
 		output:analog-surround-41+input:analog-stereo: Sortie Surround analogique 4.1 + Entrée Stéréo analogique (sinks: 1, sources: 1, priority: 1365, available: yes)
@@ -136,9 +137,11 @@
 		output:analog-surround-51: Sortie Surround analogique 5.1 (sinks: 1, sources: 0, priority: 1300, available: yes)
 		output:analog-surround-40+input:analog-stereo: Sortie Surround analogique 4.0 + Entrée Stéréo analogique (sinks: 1, sources: 1, priority: 1265, available: yes)
 		output:analog-surround-50+input:analog-stereo: Sortie Surround analogique 5.0 + Entrée Stéréo analogique (sinks: 1, sources: 1, priority: 1265, available: yes)
+		output:analog-surround-71+input:analog-stereo: Sortie Surround analogique 7.1 + Entrée Stéréo analogique (sinks: 1, sources: 1, priority: 1265, available: yes)
 		output:analog-surround-40: Sortie Surround analogique 4.0 (sinks: 1, sources: 0, priority: 1200, available: yes)
 		output:analog-surround-50: Sortie Surround analogique 5.0 (sinks: 1, sources: 0, priority: 1200, available: yes)
 		output:analog-surround-71: Sortie Surround analogique 7.1 (sinks: 1, sources: 0, priority: 1200, available: yes)
+		output:iec958-ac3-surround-51+input:analog-stereo: Sortie Surround numérique 5.1 (IEC958/AC3) + Entrée Stéréo analogique (sinks: 1, sources: 1, priority: 365, available: no)
 		output:iec958-ac3-surround-51: Sortie Surround numérique 5.1 (IEC958/AC3) (sinks: 1, sources: 0, priority: 300, available: yes)
 		input:analog-stereo: Entrée Stéréo analogique (sinks: 0, sources: 1, priority: 65, available: no)
 		pro-audio: Pro Audio (sinks: 2, sources: 2, priority: 1, available: yes)
@@ -150,26 +153,26 @@
 				port.availability-group = "Legacy 1"
 				device.icon_name = "audio-input-microphone"
 				card.profile.port = "0"
-			Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21+input:analog-stereo, output:analog-surround-40+input:analog-stereo, output:analog-surround-41+input:analog-stereo, output:analog-surround-50+input:analog-stereo, output:analog-surround-51+input:analog-stereo
+			Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21+input:analog-stereo, output:analog-surround-40+input:analog-stereo, output:analog-surround-41+input:analog-stereo, output:analog-surround-50+input:analog-stereo, output:analog-surround-51+input:analog-stereo, output:analog-surround-71+input:analog-stereo, output:iec958-stereo+input:analog-stereo, output:iec958-ac3-surround-51+input:analog-stereo
 		analog-input-rear-mic: Microphone arrière (type: Mic, priority: 8200, latency offset: 0 usec, availability group: Legacy 2, not available)
 			Properties:
 				port.type = "mic"
 				port.availability-group = "Legacy 2"
 				device.icon_name = "audio-input-microphone"
 				card.profile.port = "1"
-			Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21+input:analog-stereo, output:analog-surround-40+input:analog-stereo, output:analog-surround-41+input:analog-stereo, output:analog-surround-50+input:analog-stereo, output:analog-surround-51+input:analog-stereo
+			Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21+input:analog-stereo, output:analog-surround-40+input:analog-stereo, output:analog-surround-41+input:analog-stereo, output:analog-surround-50+input:analog-stereo, output:analog-surround-51+input:analog-stereo, output:analog-surround-71+input:analog-stereo, output:iec958-stereo+input:analog-stereo, output:iec958-ac3-surround-51+input:analog-stereo
 		analog-input-linein: Entrée ligne (type: Line, priority: 8100, latency offset: 0 usec, availability group: Legacy 3, not available)
 			Properties:
 				port.type = "line"
 				port.availability-group = "Legacy 3"
 				card.profile.port = "2"
-			Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21+input:analog-stereo, output:analog-surround-40+input:analog-stereo, output:analog-surround-41+input:analog-stereo, output:analog-surround-50+input:analog-stereo, output:analog-surround-51+input:analog-stereo
+			Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21+input:analog-stereo, output:analog-surround-40+input:analog-stereo, output:analog-surround-41+input:analog-stereo, output:analog-surround-50+input:analog-stereo, output:analog-surround-51+input:analog-stereo, output:analog-surround-71+input:analog-stereo, output:iec958-stereo+input:analog-stereo, output:iec958-ac3-surround-51+input:analog-stereo
 		analog-output-lineout: Sortie ligne (type: Line, priority: 9000, latency offset: 0 usec, availability group: Legacy 4, available)
 			Properties:
 				port.type = "line"
 				port.availability-group = "Legacy 4"
 				card.profile.port = "3"
-			Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21, output:analog-surround-21+input:analog-stereo, output:analog-surround-40, output:analog-surround-40+input:analog-stereo, output:analog-surround-41, output:analog-surround-41+input:analog-stereo, output:analog-surround-50, output:analog-surround-50+input:analog-stereo, output:analog-surround-51, output:analog-surround-51+input:analog-stereo, output:analog-surround-71
+			Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21, output:analog-surround-21+input:analog-stereo, output:analog-surround-40, output:analog-surround-40+input:analog-stereo, output:analog-surround-41, output:analog-surround-41+input:analog-stereo, output:analog-surround-50, output:analog-surround-50+input:analog-stereo, output:analog-surround-51, output:analog-surround-51+input:analog-stereo, output:analog-surround-71, output:analog-surround-71+input:analog-stereo
 		analog-output-headphones: Casque audio (type: Headphones, priority: 9900, latency offset: 0 usec, availability group: Legacy 5, not available)
 			Properties:
 				port.type = "headphones"
@@ -181,4 +184,4 @@
 			Properties:
 				port.type = "spdif"
 				card.profile.port = "5"
-			Part of profile(s): output:iec958-stereo
+			Part of profile(s): output:iec958-stereo, output:iec958-stereo+input:analog-stereo