[pulseaudio-discuss] usb sound card: PCM has 8 channels, thats too much & cannot submit datapipe for urb 0

[Martin Steigerwald]

Hi!

I saw the soundcard working already with Pulseaudio, but now it doesn´t.

Its a 

martin at merkaba:~> lsusb | grep Midiman
Bus 002 Device 004: ID 0763:2007 Midiman M-Audio Sonica Theater

on a ThinkPad T520.

Since I now simply want to watch a movie without further ado, I will 
remove pulseaudio once again and try whether that works.

Nonetheless here is what I got in syslog:

Nov 19 21:47:05 merkaba kernel: [   53.113911] usb 2-1.1: new full speed 
USB device number 4 using ehci_hcd
Nov 19 21:47:05 merkaba kernel: [   53.242880] usb 2-1.1: New USB device 
found, idVendor=0763, idProduct=2007
Nov 19 21:47:05 merkaba kernel: [   53.242892] usb 2-1.1: New USB device 
strings: Mfr=1, Product=2, SerialNumber=0
Nov 19 21:47:05 merkaba kernel: [   53.242899] usb 2-1.1: Product: Sonica 
Theater
Nov 19 21:47:05 merkaba kernel: [   53.242904] usb 2-1.1: Manufacturer: M-
Audio
Nov 19 21:47:05 merkaba mtp-probe: checking bus 2, device 4: 
"/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1"
Nov 19 21:47:05 merkaba mtp-probe: bus: 2, device: 4 was not an MTP device
Nov 19 21:47:05 merkaba kernel: [   53.315483] usbcore: registered new 
interface driver snd-usb-audio
Nov 19 21:47:05 merkaba pulseaudio[1666]: [pulseaudio] alsa-mixer.c: 
Volume element PCM has 8 channels. That's too much! I can't handle that!
Nov 19 21:47:05 merkaba kernel: [   53.498439] cannot submit datapipe for 
urb 0, error -28: not enough bandwidth

Ciao,
-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
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