Differences

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--- ubuntu:sound:troubleshooting [2020/12/12 00:27] – peter
+++ ubuntu:sound:troubleshooting [2020/12/12 00:37] (current) – peter
@@ Line 100: / Line 100: @@
 **NOTE:**  Often this is **snd_hda_intel**.
 </WRAP>
+----
+====== Identify the cards ======
+<code bash>
+cat /proc/asound/cards*
+</code>
+returns:
+<code bash>
+[NVidia         ]: HDA-Intel - HDA NVidia
+                      HDA NVidia at 0xfb080000 irq 124
+[Generic        ]: HDA-Intel - HD-Audio Generic
+                      HD-Audio Generic at 0xfc200000 irq 126
+</code>
+<WRAP info>
+**NOTE:** This indicates **0** and **2**.
+</WRAP>
 ----
+====== Identify the card codec ======
+<code bash>
+head -1 /proc/asound/card*/codec*
+</code>
+returns:
+<code bash>
+==> /proc/asound/card0/codec#0 <==
+Codec: Nvidia GPU 80 HDMI/DP
+==> /proc/asound/card2/codec#0 <==
+Codec: Realtek ALC1220
+</code>
+<WRAP info>
+**NOTE:** This indicates **card0** and **card2**.
+</WRAP>
+----
+====== Get info from aplay ======
+<code bash>
+aplay -l
+</code>
+returns:
+<code bash>
+**** List of PLAYBACK Hardware Devices ****
+card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+card 0: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+card 0: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+card 0: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+card 0: NVidia [HDA NVidia], device 10: HDMI 4 [HDMI 4]
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+card 0: NVidia [HDA NVidia], device 11: HDMI 5 [HDMI 5]
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+card 2: Generic [HD-Audio Generic], device 0: ALC1220 Analog [ALC1220 Analog]
+  Subdevices: 0/1
+  Subdevice #0: subdevice #0
+card 2: Generic [HD-Audio Generic], device 1: ALC1220 Digital [ALC1220 Digital]
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+</code>
+<WRAP info>
+**NOTE:** This indicates **card 0** and **card 2**.
+</WRAP>
+----
 ===== References =====