I am having trouble to get USB speakers (Harman/Kardon soundsticks) working on my ASUS Zenbook running Ubuntu 13.04. When I plug them in, they briefly appear in the sound settings:
But after about ten seconds they vanish for no reason, and I see this stuff in the
[ 261.694063] usb 2-1: new full-speed USB device number 2 using xhci_hcd [ 261.715712] usb 2-1: New USB device found, idVendor=05fc, idProduct=7849 [ 261.715724] usb 2-1: New USB device strings: Mfr=3, Product=1, SerialNumber=0 [ 261.715730] usb 2-1: Product: SoundSticks [ 261.715735] usb 2-1: Manufacturer: harman/kardon [ 261.768281] usbcore: registered new interface driver usbhid [ 261.768290] usbhid: USB HID core driver [ 261.773897] usb_audio: Warning! Unlikely big volume range (=656), cval->res is probably wrong. [ 261.773903] usb_audio:  FU [PCM Playback Volume] ch = 2, val = -10496/0/16<6> [ 261.776375] input: harman/kardon SoundSticks as /devices/pci0000:00/0000:00:1c.3/0000:03:00.0/usb2/2-1/2-1:1.2/input/input11 [ 261.776646] hid-generic 0003:05FC:7849.0001: input,hidraw0: USB HID v1.00 Device [harman/kardon SoundSticks] on usb-0000:03:00.0-1/input2 [ 261.779866] usbcore: registered new interface driver snd-usb-audio [ 267.807602] timeout: still 3 active urbs on EP #1 [ 268.805848] timeout: still 3 active urbs on EP #1 [ 269.804214] timeout: still 3 active urbs on EP #1 [ 271.804867] xhci_hcd 0000:03:00.0: xHCI host not responding to stop endpoint command. [ 271.804884] xhci_hcd 0000:03:00.0: Assuming host is dying, halting host. [ 271.804924] xhci_hcd 0000:03:00.0: HC died; cleaning up [ 271.805011] usb 2-1: USB disconnect, device number 2 [ 274.795747] xhci_hcd 0000:03:00.0: Timeout while waiting for configure endpoint command [ 274.795756] xhci_hcd 0000:03:00.0: Abort the command ring, but the xHCI is dead. [ 274.795765] usb 2-1: Not enough bandwidth for altsetting 0
Repeated plug and unplugs then do nothing. A fresh reboot will cause the behaviour to reoccur.
My Kernel version:
wim@wim-zenbook:~$ uname -a Linux wim-zenbook 3.8.0-27-generic #40-Ubuntu SMP Tue Jul 9 00:17:05 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
It's a USB 3.0 port on the zenbook.
What do the messages in
dmesg mean, and how can I get the speakers to just work properly?