Re: USB sound device present but NOT visible in ‘alsamixer’
On Sat, Jan 29, 2022 at 10:28:32PM +0530, Pankaj Jangid wrote:
> Sorry for the Wrong subject line earlier.
>
> Pankaj Jangid <pankaj@codeisgreat.org> writes:
>
> > I have setup a new system. Apart from the display related issue, that I
> > had posted in another thread, I am facing an issue related to my
> > external ‘Yeti Blue’ sound card. I use it as Mic and Monitor audio.
> >
> > pankaj@anant:~$ lsb_release -a
> > No LSB modules are available.
> > Distributor ID: Debian
> > Description: Debian GNU/Linux 11 (bullseye)
> > Release: 11
> > Codename: bullseye
> > pankaj@anant:~$ uname -a
> > Linux anant 5.10.0-11-amd64 #1 SMP Debian 5.10.92-1 (2022-01-18) x86_64 GNU/Linux
> >
> >
> > When I boot system afresh, the card is visible in the ‘alsamixer’ and in
> > Gnome settings as well. Shown as “Blue” S/PDIF input and output
> > devices. But when system wakes up from sleep (suspended), it doesn’t
> > show the devices.
> >
> > However, ‘lsusb’ shows it and ‘/proc/asound/cards’ has an entry. But
> > these devices (mic and speaker) are not taking any input or producing
> > sound. Because they are not visible to Gnome and ‘alsamixer’.
> >
> > pankaj@anant:~$ lsusb
> > Bus 006 Device 002: ID 2109:0813 VIA Labs, Inc. VL813 Hub
> > Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
> > Bus 005 Device 002: ID 2109:2813 VIA Labs, Inc. VL813 Hub
> > Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> > Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
> > Bus 003 Device 003: ID 05e3:0608 Genesys Logic, Inc. Hub
> > Bus 003 Device 002: ID 0db0:a073 Micro Star International USB Audio
> > Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> > Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
> > Bus 001 Device 007: ID 1462:7d54 Micro Star International MYSTIC LIGHT
> > Bus 001 Device 006: ID 05e3:0608 Genesys Logic, Inc. Hub
> > Bus 001 Device 005: ID 1b1c:1b75 Corsair CORSAIR HARPOON RGB PRO Gaming Mouse
> > Bus 001 Device 015: ID 8087:0032 Intel Corp.
> > Bus 001 Device 003: ID 046d:0ab7 Logitech, Inc. Blue Microphones
> > Bus 001 Device 002: ID 13ba:0018 PCPlay Barcode PCP-BCG4209
> > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> > pankaj@anant:~$ cat /proc/asound/cards
> > 0 [HDMI_1 ]: HDA-Intel - HDA ATI HDMI
> > HDA ATI HDMI at 0xfca60000 irq 102
> > 1 [HDMI ]: HDA-Intel - HDA ATI HDMI
> > HDA ATI HDMI at 0xfce60000 irq 104
> > 2 [Generic ]: HDA-Intel - HD-Audio Generic
> > HD-Audio Generic at 0xfcd00000 irq 106
> > 3 [Microphones ]: USB-Audio - Blue Microphones
> > Generic Blue Microphones at usb-0000:2a:00.1-2, high speed
> > 4 [Audio ]: USB-Audio - USB Audio
> > Generic USB Audio at usb-0000:2a:00.3-5, high speed
> >
> > I have tried to restart just the sound subsystem using
> > ‘/etc/init.d/asound restart’. But it did not lead to any good
> > results.
> >
> > Can somebody tell me what could be wrong at my end?
> >
> > Regards ~Pankaj
Hi Pankaj,
It might be nothing more than the power handling, sleep modes and USB
enumeration after a laptop goes to sleep.
If you unplug/replug the USB plug which is the external sound card, is
it magically recognised again?
All the very best, as ever,
Andy Cater
>
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