Differences

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--- ubuntu:sound:troubleshooting [2020/12/12 00:07] – created peter
+++ ubuntu:sound:troubleshooting [2020/12/12 00:37] (current) – peter
@@ Line 26: / Line 26: @@
 **NOTE:**  Make sure to save your work first.
 </WRAP>
+----
+====== Get info from dmesg ======
+<code bash>
+dmesg | grep "snd\|sound" -i
+</code>
+returns:
+<code bash>
+[    7.673796] snd_hda_intel 0000:09:00.1: Disabling MSI
+[    7.673802] snd_hda_intel 0000:09:00.1: Handle vga_switcheroo audio client
+[    7.673864] snd_hda_intel 0000:0b:00.4: enabling device (0000 -> 0002)
+[    7.689821] snd_hda_codec_realtek hdaudioC2D0: autoconfig for ALC1220: line_outs=3 (0x1b/0x15/0x16/0x0/0x0) type:line
+[    7.689823] snd_hda_codec_realtek hdaudioC2D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
+[    7.689824] snd_hda_codec_realtek hdaudioC2D0:    hp_outs=1 (0x14/0x0/0x0/0x0/0x0)
+[    7.689825] snd_hda_codec_realtek hdaudioC2D0:    mono: mono_out=0x0
+[    7.689825] snd_hda_codec_realtek hdaudioC2D0:    dig-out=0x1e/0x0
+[    7.689826] snd_hda_codec_realtek hdaudioC2D0:    inputs:
+[    7.689827] snd_hda_codec_realtek hdaudioC2D0:      Front Mic=0x19
+[    7.689828] snd_hda_codec_realtek hdaudioC2D0:      Rear Mic=0x18
+[    7.689829] snd_hda_codec_realtek hdaudioC2D0:      Line=0x1a
+[    7.701710] input: HD-Audio Generic Front Mic as /devices/pci0000:00/0000:00:08.1/0000:0b:00.4/sound/card2/input11
+[    7.701824] input: HD-Audio Generic Rear Mic as /devices/pci0000:00/0000:00:08.1/0000:0b:00.4/sound/card2/input12
+[    7.701942] input: HD-Audio Generic Line as /devices/pci0000:00/0000:00:08.1/0000:0b:00.4/sound/card2/input13
+[    7.702061] input: HD-Audio Generic Line Out Front as /devices/pci0000:00/0000:00:08.1/0000:0b:00.4/sound/card2/input14
+[    7.702188] input: HD-Audio Generic Line Out Surround as /devices/pci0000:00/0000:00:08.1/0000:0b:00.4/sound/card2/input15
+[    7.702317] input: HD-Audio Generic Line Out CLFE as /devices/pci0000:00/0000:00:08.1/0000:0b:00.4/sound/card2/input16
+[    7.702514] input: HD-Audio Generic Front Headphone as /devices/pci0000:00/0000:00:08.1/0000:0b:00.4/sound/card2/input17
+[    7.948602] usbcore: registered new interface driver snd-usb-audio
+[    9.392299] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0/input18
+[    9.392341] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0/input19
+[    9.392431] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0/input20
+[    9.392471] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0/input21
+[    9.392507] input: HDA NVidia HDMI/DP,pcm=10 as /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0/input22
+[    9.392553] input: HDA NVidia HDMI/DP,pcm=11 as /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0/input23
+[   22.099789] snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD data byte 7
+</code>
+<WRAP info>
+**NOTE:** This indicates **card0** and **card2**.
+</WRAP>
 ----
+====== Identify the card module ======
+<code bash>
+lspci -k | grep Audio -A4
+</code>
+returns:
+<code bash>
+:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1)
+	Subsystem: Micro-Star International Co., Ltd. [MSI] GP107GL High Definition Audio Controller
+	Kernel driver in use: snd_hda_intel
+	Kernel modules: snd_hda_intel
+a:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Function
+	Subsystem: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Function
+--
+b:00.4 Audio device: Advanced Micro Devices, Inc. [AMD] Starship/Matisse HD Audio Controller
+	Subsystem: Gigabyte Technology Co., Ltd Starship/Matisse HD Audio Controller
+	Kernel driver in use: snd_hda_intel
+	Kernel modules: snd_hda_intel
+</code>
+<WRAP info>
+**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 =====