On Sun, 2 Aug 2015, Jakob Schürz wrote: > Hi! > > My external USB-Speaker produces the following in the Journal from > systemd-journald > > I'm not able to use the Speaker. Wheter ALSA nor pulseaudio can play > anything. ... > Aug 02 11:53:17 aldebaran kernel: usb 2-3: new full-speed USB device > number 9 using xhci_hcd > Aug 02 11:53:17 aldebaran kernel: usb 2-3: config 1 has an invalid > interface number: 4 but max is 3 > Aug 02 11:53:17 aldebaran kernel: usb 2-3: config 1 has no interface > number 3 > Aug 02 11:53:17 aldebaran kernel: usb 2-3: New USB device found, > idVendor=e3b4, idProduct=0811 > Aug 02 11:53:17 aldebaran kernel: usb 2-3: New USB device strings: > Mfr=1, Product=2, SerialNumber=0 > Aug 02 11:53:17 aldebaran kernel: usb 2-3: Product: AC209N > Aug 02 11:53:17 aldebaran kernel: usb 2-3: Manufacturer: AC209N > Aug 02 11:53:17 aldebaran kernel: usb-storage 2-3:1.0: USB Mass Storage > device detected > Aug 02 11:53:17 aldebaran kernel: scsi host8: usb-storage 2-3:1.0 > Aug 02 11:53:17 aldebaran kernel: xhci_hcd 0000:00:14.0: Trying to add > endpoint 0x2 without dropping it. > Aug 02 11:53:17 aldebaran kernel: usb 2-3: Not enough bandwidth for > altsetting 1 ... > In the debianforum.de i got the hint, it's a kernel-problem, so i'm > mailing this to the list. > > Hope you can help me, and you got enough information. First, what version of the kernel are you using? Next, please post the output from "lsusb -v" for this device. Also, post the contents of /sys/kernel/debug/usb/devices. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
