I have a laptop where a xhci controller grabs the card (mixer works) and a PC where ehci controller grab the card (mixer dont work)msil wrote: ↑Wed May 27, 2020 12:45 amFor what it's worth, I also ran into your same issue and discovered that it was only happening on an older machine of mine (Core 2 Duo). I tested kernels from 5.4 to 5.7, alsamixer would not display the interface properly, and I would always see the following in the logs:Bugeyed Earl wrote: ↑Sat May 02, 2020 3:23 am Thanks for the suggestion, but there was one additional slider that moved off screen when I resized the window. Normally, I can see it.
One other point that I forgot to make about my troubleshooting - I've tried various kernels from 5.3.1 to 5.5.7, Ubuntu Studio, a couple of versions of Debian with updated kernels, and on 3 distinct computers with different architectures. The behavior seems identical on all, so that's why I suspect the interface is the issue.
It was working fine with another machine of mine (i5 3rd gen) so I dd'd the OS from the working machine to the non-working one to rule out any differences in software and encountered the same issue. I have the same interface working fine on two different machines (Arch Linux and Ubuntu), both with newer CPUs (i5 3rd gen and i5 8th gen).Code: Select all
Scarlett Gen 2 USB response result cmd 0 was -110
Maybe try your setup on a different machine to confirm this may be the case? Good luck!
I installed ubuntu 20.04 and kernel Linux Innerpeace 5.4.0-31-lowlatency #35-Ubuntu SMP PREEMPT Thu May 7 22:51:24 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux with the same usbstick on both laptop and PC.
on PC usbdevice is connected to a HW usb3 input but invoke ehci usb2 controller instead, so my guess is that udev is kinda mess things up. I have tried to get help on ubuntuforum howto force xhci controller grab the device instead of letting the ehci controller get the job. I dont know it this helps , but I thought its worth trying
Heres link . https://askubuntu.com/questions/1243555 ... -want-xhci