[Alsa-user] No sound with on-board CM6501 USB

[Neil S. <na...@ar...>]

I did some googling and it looks like other people have gotten sound
working on this motherboard (Asus M2N-E SLI).  The driver seems to
load but I get no sound.  I've tried plugging the speakers into
every sound jack. Here's the output from the ALSA info script:

    http://pastebin.ca/914731

I rebuilt ALSA with verbose printk and got this output:

    ALSA sound/usb/usbaudio.c:2762: 3:1:1: add audio endpoint 0x6
    ALSA sound/usb/usbaudio.c:2762: 3:1:2: add audio endpoint 0x6
    ALSA sound/usb/usbaudio.c:2762: 3:1:3: add audio endpoint 0x6
    ALSA sound/usb/usbaudio.c:2762: 3:1:4: add audio endpoint 0x6
    ALSA sound/usb/usbaudio.c:2762: 3:1:5: add audio endpoint 0x6
    ALSA sound/usb/usbaudio.c:1279: current rate 30464 is different from the runtime rate 96000
    ALSA sound/usb/usbaudio.c:2762: 3:2:1: add audio endpoint 0x85
    ALSA sound/usb/usbmixer.c:988: [9] FU [Mic Playback Switch] ch = 1, val = 0/1/1
    ALSA sound/usb/usbmixer.c:988: [9] FU [Mic Playback Volume] ch = 2, val = -6144/1921/1
    ALSA sound/usb/usbmixer.c:988: [14] FU [CD   Playback Switch] ch = 1, val = 0/1/1
    ALSA sound/usb/usbmixer.c:988: [14] FU [CD   Playback Volume] ch = 2, val = -6144/1921/1
    ALSA sound/usb/usbmixer.c:988: [11] FU [Speaker Playback Switch] ch = 1, val = 0/1/1
    ALSA sound/usb/usbmixer.c:988: [11] FU [Speaker Playback Volume] ch = 2, val = -6144/1921/1
    ALSA sound/usb/usbmixer.c:988: [13] FU [Speaker Playback Switch] ch = 1, val = 0/1/1
    ALSA sound/usb/usbmixer.c:405: cannot set ctl value: req = 0x4, wValue = 0x201, wIndex = 0xd00, type = 4, data = 0x18/0x0
    ALSA sound/usb/usbmixer.c:988: [13] FU [Speaker Playback Volume] ch = 8, val = -9456/0/48
    ALSA sound/usb/usbmixer.c:988: [8] FU [Mic Capture Switch] ch = 1, val = 0/1/1
    ALSA sound/usb/usbmixer.c:988: [8] FU [Mic Capture Volume] ch = 2, val = -4096/2832/1
    ALSA sound/usb/usbmixer.c:988: [2] FU [PCM Capture Switch] ch = 1, val = 0/1/1
    ALSA sound/usb/usbmixer.c:988: [2] FU [PCM Capture Volume] ch = 2, val = -4096/2832/1
    ALSA sound/usb/usbmixer.c:988: [16] FU [CD   Capture Switch] ch = 1, val = 0/1/1
    ALSA sound/usb/usbmixer.c:988: [16] FU [CD   Capture Volume] ch = 2, val = -4096/2832/1
    ALSA sound/usb/usbmixer.c:988: [15] FU [PCM Capture Switch] ch = 1, val = 0/1/1
    ALSA sound/usb/usbmixer.c:988: [15] FU [PCM Capture Volume] ch = 2, val = -4096/2832/1
    ALSA sound/usb/usbmixer.c:1571: [7] SU [PCM Capture Source] items = 4
    usbcore: registered new interface driver snd-usb-audio

The output from "lsusb -v" is here:

    http://pastebin.ca/914734

Regards,

  Neil