Re: [alsa-devel] Audio USB disappears suddenly

mobidyc wrote:

USB DAC suddenly disappears, from dmesg I can see:

[13083.161157] usb 1-1.3: 1:2: usb_set_interface failed (-110) [13083.316344] usb 1-1.3: 1:2: usb_set_interface failed (-71) [13083.471927] usb 1-1.3: 1:2: usb_set_interface failed (-71) [13083.789810] usb 1-1.3: 1:2: usb_set_interface failed (-71)

These error codes indicate that the device's firmware does not react at all. Either the firmware has locked up due to a bug, or the hardware has shut down for some reason.

Regards, Clemens