A few days ago I bought a new Mackie ProFx10v3 mixer, which for my needs is a perfect size and features. The device works very well and has good sound quality (after having to return two devices due to poor quality sound). Seeing that they were giving away software compatible with Linux made me think that the device would have no problems with our beloved OS. Nothing could be further from the truth since I cannot in any way get it to work. When I contacted customer service, they told me that just because the software is compatible with Linux does not mean that they provide support for this OS. I was willing to return it although it works very well on Windows, but I read a thread in this forum from someone who says they managed to get it to work. I have tried the solution you propose but I have not achieved anything.
Data: I use Ubuntu Studio, I have also tried AV Linux but the results have been similar.
If I open alsamixer the controls for the device appear, if I use the aplay command in a terminal the device also appears recognized and if I open the QasMixer application the device appears with its drivers as if it worked perfectly,
but when you try to use its inputs or outputs with any application like Ardor or Audacity the device is missing. If I use the QjackCtl application that in Ubuntu Studio shows the connections in graphical mode, the device is also missing.
I have been using Linux for many years, but I am not very skilled at doing low-level manipulations. I would greatly appreciate any help you can give me.
Thank you all in advance.