Comment 11 for bug 975941

I have the problems described here exactly, but I have this:

$ cat /proc/asound/cards
 0 [PCH ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xf7620000 irq 61
 1 [P7xx ]: USB-Audio - Plantronics Savi 7xx
                      Plantronics Plantronics Savi 7xx at usb-0000:00:1d.0-1.2, full speed
 2 [NVidia ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xf7080000 irq 17

I added the device to /usr/share/alsa/cards/USB-Audio.conf:

USB-Audio.pcm.iec958_device {
        # "NoiseBlaster 3000" 42

        # The below don't have digital in/out, so prevent them from being opened.
        "Blue Snowball" 999
        "Logitech Speaker Lapdesk N700" 999
        "Logitech USB Headset" 999
        "Logitech Web Camera" 999
        "Logitech Wireless Headset" 999
        "Plantronics USB Headset" 999
        "Sennheiser USB headset" 999
        "Plantronics Savi 7xx" 999
}

restarted, and I have the same problem. I cannot scroll, click windows, etc.