I just found and ran the aadebug script (https://alsa.opensrc.org/Aadebug). The output is incomprehensible to me, but it may provide a clue for someone more experienced with ALSA, so I'm posting the results. -r ----- ALSA Audio Debug v0.2.0 - Thu 23 Jan 2020 04:58:13 PM UTC http://alsa.opensrc.org/aadebug http://www.gnu.org/licenses/agpl-3.0.txt Kernel ---------------------------------------------------- Linux vagrant 5.3.0-26-generic #28-Ubuntu SMP Wed Dec 18 05:37:46 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux Advanced Linux Sound Architecture Driver Version k5.3.0-26-generic. Loaded Modules -------------------------------------------- snd_hda_codec_idt 61440 1 snd_hda_codec_generic 81920 1 snd_hda_codec_idt snd_hda_intel 49152 1 snd_hda_codec 131072 3 snd_hda_codec_generic,snd_hda_intel,snd_hda_codec_idt snd_hda_core 90112 4 snd_hda_codec_generic,snd_hda_intel,snd_hda_codec,snd_hda_codec_idt snd_hwdep 20480 1 snd_hda_codec snd_pcm 106496 4 snd_hda_intel,snd_hda_codec,snd_hda_core snd_timer 36864 1 snd_pcm snd 86016 8 snd_hda_codec_generic,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_timer,snd_pcm,snd_hda_codec_idt Proc Asound ----------------------------------------------- 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0xf0804000 irq 21 2: [ 0- 0]: digital audio playback 3: [ 0- 0]: digital audio capture 4: [ 0- 1]: digital audio playback 5: [ 0- 1]: digital audio capture 6: [ 0- 2]: digital audio capture 7: [ 0- 0]: hardware dependent 8: [ 0] : control 33: : timer 00-00: HDA Codec 0 00-00: STAC9221 A1 Analog : STAC9221 A1 Analog : playback 1 : capture 1 00-01: STAC9221 A1 Digital : STAC9221 A1 Digital : playback 1 : capture 1 00-02: STAC9221 A1 Alt Analog : STAC9221 A1 Alt Analog : capture 1 cat: /proc/asound/seq/clients: No such file or directory Dev Snd --------------------------------------------------- total 0 drwxr-xr-x 2 root root 60 Jan 23 01:12 by-path crw-rw----+ 1 root audio 116, 8 Jan 23 01:12 controlC0 crw-rw----+ 1 root audio 116, 7 Jan 23 01:12 hwC0D0 crw-rw----+ 1 root audio 116, 3 Jan 23 01:12 pcmC0D0c crw-rw----+ 1 root audio 116, 2 Jan 23 01:12 pcmC0D0p crw-rw----+ 1 root audio 116, 5 Jan 23 01:12 pcmC0D1c crw-rw----+ 1 root audio 116, 4 Jan 23 01:12 pcmC0D1p crw-rw----+ 1 root audio 116, 6 Jan 23 01:12 pcmC0D2c crw-rw----+ 1 root audio 116, 1 Jan 23 01:12 seq crw-rw----+ 1 root audio 116, 33 Jan 23 01:12 timer CPU ------------------------------------------------------- model name : Intel(R) Core(TM) i5-5350U CPU @ 1.80GHz cpu MHz : 1800.000 RAM ------------------------------------------------------- MemTotal: 1004764 kB SwapTotal: 1003516 kB Hardware -------------------------------------------------- 00:02.0 VGA compatible controller: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter 00:05.0 Audio device: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller (rev 01) Interupts ------------------------------------------------- CPU0 0: 30 IO-APIC 2-edge timer 1: 9 IO-APIC 1-edge i8042 8: 0 IO-APIC 8-edge rtc0 9: 0 IO-APIC 9-fasteoi acpi 12: 158 IO-APIC 12-edge i8042 14: 0 IO-APIC 14-edge ata_piix 15: 0 IO-APIC 15-edge ata_piix 18: 0 IO-APIC 18-fasteoi vboxvideo 19: 5051 IO-APIC 19-fasteoi eth0 20: 2378 IO-APIC 20-fasteoi vboxguest 21: 11570 IO-APIC 21-fasteoi ahci[0000:00:0d.0], snd_hda_intel:card0 NMI: 0 Non-maskable interrupts LOC: 152648 Local timer interrupts SPU: 0 Spurious interrupts PMI: 0 Performance monitoring interrupts IWI: 0 IRQ work interrupts RTR: 0 APIC ICR read retries RES: 0 Rescheduling interrupts CAL: 0 Function call interrupts TLB: 0 TLB shootdowns TRM: 0 Thermal event interrupts THR: 0 Threshold APIC interrupts DFR: 0 Deferred Error APIC interrupts MCE: 0 Machine check exceptions MCP: 21 Machine check polls HYP: 0 Hypervisor callback interrupts HRE: 0 Hyper-V reenlightenment interrupts HVS: 0 Hyper-V stimer0 interrupts ERR: 0 MIS: 0 PIN: 0 Posted-interrupt notification event NPI: 0 Nested posted-interrupt event PIW: 0 Posted-interrupt wakeup event ----- _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
