Sorry for the long delay, but I was hit by a nasty pain in the back and could hardly walk for several days. I'm slowly getting back on my feet now, and I can answer some of the questions left open.
Op maandag 23 juni 2025, schreef deloptes via tde-users:
Rody via tde-users wrote:
This looks ok to me but maybe I'm missing something?
yes, indeed it looks ok at first glance
you can enable kmix in tdedebugdialog, login again or reboot or unplug and plug the usb card again and restart kmix and see if there is something related in .xsession-errors
Did that but I couldn't find anything related to usb audio or kmix in .xsession-errors.
It might be that your soundcard comes up after kmix is started. As kmix does not update its list of soundcards you wnd up with a list withoute the "late" soundcards. So, could you restart kmix after you have confirmed that alsamixer sees the card? If the kmix then sees the card you'd need just a little udev hacking, if not ...
I tested if that was the case, but closing down kmix and restarting it did not make any difference.
The weird thing is that the rubix soundcard would sometimes just work after logging in although kmix would still have the HDA Intel card selected and the only other option was the HDA Nvidia. The Roland Rubix was still not listed. It's as if both the HDA Intel and the Roland Rubix (usb audio) were "fighting" for the first place in that list, but kmix never listed the roland rubix. But this scenario was very dicey, sometimes it would work, but most of the time it did not and audio came from the HDA Intel still.
Install pulseaudio and pavucontrol and report back.
Did that and after a restart the Rubix card just worked. Pulse was automatically detected and selected by default by kmix and pulse had automatically selected the roland rubix. No more diceyness anymore...
KMix is reading the system devices (AFAIK), so it must be something down the system path that is preventing kmix to list the device It could be also that a patch is needed in kmix for some reason, but we do not have any details.
I would be happy to provide more details about this, just let me know what could be useful.
Regards,
Rody
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