On 04/28 10:43, Peter Humphrey wrote: > Morning all, > > The motherboard sound chip failed, so I bought a USB sound adapter [1]. > Problem: no sound: firefox says it isn't working and KDE sounds don't > 'appear'. > I have all the likely-looking options set in the kernel (5.4.28), modules > where possible. I've read the Gentoo wiki articles on USB and audio, but they > didn't offer any help. > > The device uses USB-2 and I have it in a USB-2 socket. I get this on plugging > it in: > > $ dmesg -Hw > [Apr28 09:49] usb 3-13: new full-speed USB device number 17 using xhci_hcd > [ +0.127080] usb 3-13: New USB device found, idVendor=0d8c, idProduct=0014, > bcdDevice= 1.00 > [ +0.000002] usb 3-13: New USB device strings: Mfr=1, Product=2, > SerialNumber=0 > [ +0.000002] usb 3-13: Product: USB Audio Device > [ +0.000001] usb 3-13: Manufacturer: C-Media Electronics Inc. > [ +0.007851] input: C-Media Electronics Inc. USB Audio Device as > /devices/pci0000:00/0000:00:14.0/usb3/3-13/3-13:1.3/0003:0D8C:0014.000D/input/input20 > [ +0.051184] hid-generic 0003:0D8C:0014.000D: input,hidraw4: USB HID v1.00 > Device [C-Media Electronics Inc. USB Audio Device] on > usb-0000:00:14.0-13/input3 > > Some more diagnostics: > > # aplay -l > **** List of PLAYBACK Hardware Devices **** > card 0: HDMI [HDA ATI HDMI], device 3: Generic Digital [Generic Digital] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 2: Device [USB Audio Device], device 0: USB Audio [USB Audio] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > > # arecord -l > **** List of CAPTURE Hardware Devices **** > card 1: USB [HD Webcam USB], device 0: USB Audio [USB Audio] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 2: Device [USB Audio Device], device 0: USB Audio [USB Audio] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > > # lsusb -t | grep -i audio > |__ Port 6: Dev 3, If 2, Class=Audio, Driver=snd-usb-audio, 480M > |__ Port 6: Dev 3, If 3, Class=Audio, Driver=snd-usb-audio, 480M > |__ Port 13: Dev 17, If 0, Class=Audio, Driver=snd-usb-audio, 12M > |__ Port 13: Dev 17, If 1, Class=Audio, Driver=snd-usb-audio, 12M > |__ Port 13: Dev 17, If 2, Class=Audio, Driver=snd-usb-audio, 12M > > # lsmod | grep snd > snd_usb_audio 233472 0 > snd_hwdep 16384 1 snd_usb_audio > snd_usbmidi_lib 28672 1 snd_usb_audio > snd_rawmidi 32768 1 snd_usbmidi_lib > snd_seq_device 16384 1 snd_rawmidi > mc 40960 4 > videodev,snd_usb_audio,videobuf2_v4l2,videobuf2_common > snd_hda_codec_generic 77824 1 > snd_hda_intel 28672 0 > snd_intel_nhlt 16384 1 snd_hda_intel > snd_hda_codec 122880 2 snd_hda_codec_generic,snd_hda_intel > snd_hda_core 73728 3 > snd_hda_codec_generic,snd_hda_intel,snd_hda_codec > snd_pcm 98304 4 > snd_hda_intel,snd_usb_audio,snd_hda_codec,snd_hda_core > snd_timer 32768 1 snd_pcm > snd 81920 10 > snd_hda_codec_generic,snd_seq_device,snd_hwdep,snd_hda_i> > soundcore 16384 1 snd > > Why those Intel modules? The built-in Intel device is switched off in the > BIOS. > > Can anyone point me in the right direction? > > 1. The device is a 'Sabrent USB External Stereo Sound Adapter'; The blurb at > amazon.co.uk includes Linux in its list of OSes. I bought it via > https://smile.amazon.co.uk/Sabrent-External-Adapter-Windows-AU-MMSA/dp/B00IRVQ0F8/ref=sr_1_3?dchild=1&keywords=usb+sound&qid=1588065420&sr=8-3 > > -- > Regards, > Peter. > > > >
Hi Peter, not long ago I had fallen over a very similiar effect. What cured the problem here was to reboot into the BIOS and to disable the AUDIO device. Cheers! Meino
