AW: Audio devices vanish.

[Lars Noodén]

On 07/23/2013 08:45 PM, Leszek Lesner wrote:
> First it would help to know which package(s) were updated. Then check alsamixer 
> and dmesg and lsusb if the Device is recognized.

These would have been the updates from 'sudo apt-get upgrade' yesterday.
 Are there logs that can show what was changed?

I found alsamixer but it does not seem to find the headphones or any
other USB devices.

Regards,
/Lars

from lsusb:
 Bus 003 Device 007: ID 1395:0025 Sennheiser Communications

from dmesg:

 [ 1054.620146] usb 3-1: new full-speed USB device number 6 using ohci_hcd
 [ 1054.834295] usb 3-1: New USB device found, idVendor=1395, idProduct=0025
 [ 1054.834301] usb 3-1: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
 [ 1054.834305] usb 3-1: Product: Sennheiser USB headset
 [ 1054.834309] usb 3-1: Manufacturer: Sennheiser Communications
 [ 1054.846321] input: Sennheiser Communications  Sennheiser USB headset
as /devices/pci0000:00/0000:00:04.0/usb3/3-1/3-1:1.3/input/input15
 [ 1054.846467] hid-generic 0003:1395:0025.000B: input,hidraw7: USB HID
v1.00 Device [Sennheiser Communications  Sennheiser USB headset] on
usb-0000:00:04.0-1/input3
 [ 1054.935687] snd_usb_audio: Unknown parameter `index'
 [ 1076.707912] nouveau E[  PGRAPH][0000:02:00.0] TRAP_TPDMA - TP0:
Unhandled ustatus 0x00000800
 [ 1076.707918] nouveau E[  PGRAPH][0000:02:00.0]  TRAP
 [ 1076.707924] nouveau E[  PGRAPH][0000:02:00.0] ch 2 [0x000fb35000
Xorg[1035]] subc 2 class 0x502d mthd 0x060c data 0x00000018
 [ 1135.984919] usb 3-1: USB disconnect, device number 6
 [ 1306.769908] forcedeth 0000:00:0a.0 eth0: link up
 [ 1307.360948] forcedeth 0000:00:0a.0 eth0: link down
 [ 1309.055670] forcedeth 0000:00:0a.0 eth0: link up
 [ 1341.183983] nouveau E[  PGRAPH][0000:02:00.0] TRAP_TPDMA - TP0:
Unhandled ustatus 0x00000800