On Sun, 13 Oct 2019, nik@xxxxxxxxxxxxxxx wrote:
Hmm, this is interesting, i just checked the USB ports in my Thinkpad T440s with lsusb -t.
That means, not matter where i connect the interface, there's no way to connect to the least busy bus.
Which driver is servicing them? if it an xhci driver... turning that off, either in bios (what I did) of via software may let the ohci driver work and split them up a bit. (I at least got two doing this) This basically makes your machine USB2 and not USB3. However, it may allow you to separate at least some of you USB parts. On this machine with xhci running every single plug ended up on the same USB bridge (all 10 of them!) but turning xhci off in bios split the plugs into two bridges (front and back in my case) and allowed me to give my USB audio a higher priorty while leaving my mouse and printer at lower priority. (the mouse has since been replaced with a ps/2 mouse) This may help: https://www.systutorials.com/241533/how-to-force-a-usb-3-0-port-to-work-in-usb-2-0-mode-in-linux/
-- Len Ovens www.ovenwerks.net _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
