[lug] External USB Audio - not connecting driver

Jed S. Baer blug at jbaer.cotse.net
Sat Aug 29 20:25:09 MDT 2020


On Sat, 29 Aug 2020 20:14:45 -0600 (MDT)
D. Stimits wrote:

> If you run "lsusb" you will see an ID. If you use that ID (I'll pretend
> it is 1234:5678) for a verbose listing, what do you see? sudo lsusb -d
> 1234:5678 -vvv | tee log_usb.txt

Lots of output. Is there something in particular I should look for?

> Just before connecting the USB, monitor "dmesg --follow". What shows up
> as a result of connecting this?

There's no dmesg any longer. But this is in the syslog. (double-spaced for
bad wrapping)

usb 1-4.1: new high-speed USB device number 20 using xhci_hcd

usb 1-4.1: New USB device found, idVendor=30be, idProduct=0100, bcdDevice=
1.02 usb 1-4.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0

usb 1-4.1: Product: I'm Fulla Schiit

usb 1-4.1: Manufacturer: Schiit Audio

input: Schiit Audio I'm Fulla Schiit
as /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.1/1-4.1:1.3/0003:30BE:0100.0004/input/input17

hid-generic 0003:30BE:0100.0004: input,hidraw1: USB HID v1.00 Device
[Schiit Audio I'm Fulla Schiit] on usb-0000:00:14.0-4.1/input3

checking bus 1, device 20:
"/sys/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.1"

bus: 1, device: 20 was not an MTP device

upowerd[2113]: unhandled action 'bind'
on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.1/1-4.1:1.3/0003:30BE:0100.0004

upowerd[2113]: unhandled action 'bind'
on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.1/1-4.1:1.3

upowerd[2113]: unhandled action 'bind'
on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.1

> Check out whatever you can from the "pavucontrol" command.

The device simply isn't there.

And now, neither is the on-board audio device.

What's the price of Win10 these days?

Oh, for info sake:
$ uname -a
Linux robinson 5.4.0-42-generic #46~18.04.1-Ubuntu SMP Fri Jul 10 07:21:24
UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
$ cat /etc/issue
Linux Mint 19.3 Tricia

-- 
All operating systems suck, but Linux just sucks less
 - Linus Torvalds


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