Okay, I am confused now. I have another system for with usb DAC works just fine.
Distributor ID: Ubuntu Description: Ubuntu 18.10 Release: 18.10 Codename: cosmic Linux 4.18.0-13-generic x86_64 And dmesg show me same issue: [ 3649.034233] usb 3-1: new full-speed USB device number 2 using xhci_hcd [ 3649.651192] usb 3-1: New USB device found, idVendor=2912, idProduct=120b, bcdDevice= 1.0c [ 3649.651199] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 3649.651204] usb 3-1: Product: Audioengine D3 [ 3649.651208] usb 3-1: Manufacturer: Audioengine [ 3649.651212] usb 3-1: SerialNumber: Audioengine [ 3649.696266] usb 3-1: 1:1: cannot get freq at ep 0x1 [ 3649.719070] usbcore: registered new interface driver snd-usb-audio [ 3649.762678] usb 3-1: 1:1: cannot get freq at ep 0x1 [ 3649.785497] usb 3-1: 1:1: cannot get freq at ep 0x1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1811999 Title: [USB-Audio - Audioengine D3, playback] fails after a while (a second) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1811999/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
