Re: kmix and usb soundcards?

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Op zondag 29 juni 2025, schreef deloptes via tde-users:
> Rody via tde-users wrote:
> > The attachments show what kmix looks like now that pulse is installed.
> > For the rubix it is normal that the volumeslider is set (fixed) to 100%
> > as the volumecontrols are on the rubix box itself.
>
> Nice
>
> so it works via pulseaudio, correct?
>
> and when you install pavucontrol do you see the card there?

Yes, see attached file

>
> may be check the boot or system log, how it is being initialized.
>
> I don't have usb snd card, but the usb webcam looks like this, where you
> also see the initialization of the snd driver
>
> [   12.488125] videodev: Linux video capture interface: v2.00
> [   12.528705] usb 1-1.5: Found UVC 1.00 device Philips SPC 1000NC Webcam
> (0471:0332)
> [   12.537723] snd_hda_intel 0000:00:1b.0: enabling device (0140 -> 0142)
> [   12.543947] snd_hda_intel 0000:00:1b.0: bound 0000:00:02.0 (ops
> i915_audio_component_bind_ops [i915])
> [   12.571965] input: Philips SPC 1000NC Webcam
> as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5:1.0/input/input8
>

I found the following lines in syslog for the roland rubix audio card:

2025-06-29T02:26:24.343353+02:00 HP-63 kernel: [    1.415894] usb 2-1: new 
high-speed USB device number 2 using xhci_hcd
2025-06-29T02:26:24.343381+02:00 HP-63 kernel: [    1.564509] usb 2-1: New USB 
device found, idVendor=0582, idProduct=01e0, bcdDevice=11.1f
2025-06-29T02:26:24.343385+02:00 HP-63 kernel: [    1.564515] usb 2-1: New USB 
device strings: Mfr=1, Product=3, SerialNumber=0
2025-06-29T02:26:24.343386+02:00 HP-63 kernel: [    1.564517] usb 2-1: 
Product: Rubix24
2025-06-29T02:26:24.343386+02:00 HP-63 kernel: [    1.564518] usb 2-1: 
Manufacturer: Roland

However, no lines containing 'enabling device' are present in syslog (before 
and after installing nvidia driver).

Lines containing 'bound' were found for one device before installing the 
nvidia driver:

2025-06-20T02:05:18.674541+02:00 HP-63 kernel: [    4.660744] snd_hda_intel 
0000:01:00.1: bound 0000:01:00.0 (ops nv50_audio_component_bind_ops 
[nouveau])

Afterward no lines containing 'bound' were found.

Lines containing 'input:' are found for mouse, keyboard, power button, pc 
speaker, nvidia card and hda intel card but not for the roland rubix usb 
card.


Regards,

Rody

>
>
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