[lug] External USB Audio - not connecting driver

[Jed S. Baer]

On Sat, 29 Aug 2020 20:46:05 -0600 (MDT)
D. Stimits wrote:

> > Lots of output. Is there something in particular I should look for?  
> 
> Post the whole verbose lsusb. This will guarantee knowing about things
> like what class it is.

Not sure when I'll get to that. For now, I'm trying to get my on-board
audio working again. I'm about to boot Xubuntu from a USB drive, and see if
I have sound.

> > usb 1-4.1: Product: I'm Fulla Schiit  
> Makes me wonder...but perhaps it is just tech humor?

That does seem to be a hallmark of the Schiit audio company.

> > hid-generic 0003:30BE:0100.0004: input,hidraw1: USB HID v1.00 Device  
> HID is a human interface device, and covers keyboards, mice, so on.
> Probably buttons on this appear as a keyboard key and some program knows
> how to use this. Or perhaps a key binding needs to be set up.

Probably, the volume knob.

> The system does not seem to know how to pick a driver to go with this.

Yes, that was what I concluded.

> Sometimes you can set up an alias if a more standard chipset has been
> labelled with some custom name, but if this is not something standard,
> then you will probably need a new driver and it wouldn't be a "standard"
> class either (not every part of the device may need to work, e.g., a
> programmable keyboard might not have anything understanding how to
> program the keyboard despite the rest of it working). Similar to the rest
> of the devices which cannot bind.

In the Arch forum link I included, the poster shows a Schiit device
functioning, but didn't post the kernel version.

> Yes, but does pavucontrol show any devices? If so, what does it show?

Right now, only the "dummy". Prior to upgrading the kernel, it showed my
on-board audio.

> > And now, neither is the on-board audio device.  
> Perhaps your new kernel lacks the full set of kernel modules. You will
> have your current system modules at: /lib/modules/$(uname -r)/kernel/

The problem (on-board audio device not present) persists even when I boot
the previous kernel.

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