[arch-general] usb webcam no audio

[Matthew Monaco]

On 07/22/2011 12:01 PM, Bastian Beischer wrote:
> Hi,
>
> I think this issue might related to:
>
> https://bbs.archlinux.org/viewtopic.php?id=121607
>
> On Fri, Jul 22, 2011 at 5:57 AM, Matthew Monaco<dgbaley27 at 0x01b.net>  wrote:
>
>> I haven't been able to get audio on my webcam for a while. My initial guess
>> is that it has to do with all of the udev changes.
>>
>> I'm using gnome w/ pulseaudio. The audio properties show the device on the
>> input tab, but it doesn't detect any activity.
>>
>> everything.log:
>> Jul 21 23:54:08 newguy kernel: [11606.472285] usb 4-5: new high speed USB
>> device number 2 using ehci_hcd
>> Jul 21 23:54:09 newguy mtp-probe: checking bus 4, device 2:
>> "/sys/devices/pci0000:00/0000:**00:13.2/usb4/4-5"
>> Jul 21 23:54:09 newguy mtp-probe: bus: 4, device: 2 was not an MTP device
>> Jul 21 23:54:09 newguy kernel: [11607.089065] Linux media interface: v0.10
>> Jul 21 23:54:09 newguy kernel: [11607.121723] Linux video capture
>> interface: v2.00
>> Jul 21 23:54:09 newguy kernel: [11607.129054] uvcvideo: Found UVC 1.00
>> device Hercules Dualpix Exchange (06f8:3005)
>> Jul 21 23:54:09 newguy kernel: [11607.134791] input: Hercules Dualpix
>> Exchange as /devices/pci0000:00/0000:00:**13.2/usb4/4-5/4-5:1.0/input/**
>> input6
>> Jul 21 23:54:09 newguy kernel: [11607.134938] usbcore: registered new
>> interface driver uvcvideo
>> Jul 21 23:54:09 newguy kernel: [11607.134943] USB Video Class driver
>> (v1.0.0)
>> Jul 21 23:54:09 newguy kernel: [11607.197743] 2:3:1: cannot get freq at ep
>> 0x84
>> Jul 21 23:54:09 newguy kernel: [11607.198679] usbcore: registered new
>> interface driver snd-usb-audio
>> Jul 21 23:54:09 newguy kernel: [11607.251849] 2:3:1: cannot get freq at ep
>> 0x84
>> Jul 21 23:54:09 newguy kernel: [11607.276979] 2:3:1: cannot get freq at ep
>> 0x84
>> Jul 22 03:54:09 newguy rtkit-daemon[1012]: Recovering from system lockup,
>> not allowing further RT threads.
>> Jul 22 03:54:09 newguy rtkit-daemon[1012]: Recovering from system lockup,
>> not allowing further RT threads.
>> Jul 22 03:54:09 newguy rtkit-daemon[1012]: Recovering from system lockup,
>> not allowing further RT threads.
>> Jul 22 03:54:09 newguy rtkit-daemon[1012]: Recovering from system lockup,
>> not allowing further RT threads.
>> Jul 22 03:54:09 newguy rtkit-daemon[1012]: Recovering from system lockup,
>> not allowing further RT threads.
>> Jul 21 23:54:45 newguy kernel: [11643.290970] 2:3:1: cannot get freq at ep
>> 0x84
>>
>>
>> dmesg:
>> [11606.472285] usb 4-5: new high speed USB device number 2 using ehci_hcd
>> [11607.089065] Linux media interface: v0.10
>> [11607.121723] Linux video capture interface: v2.00
>> [11607.129054] uvcvideo: Found UVC 1.00 device Hercules Dualpix Exchange
>> (06f8:3005)
>> [11607.134791] input: Hercules Dualpix Exchange as
>> /devices/pci0000:00/0000:00:**13.2/usb4/4-5/4-5:1.0/input/**input6
>> [11607.134938] usbcore: registered new interface driver uvcvideo
>> [11607.134943] USB Video Class driver (v1.0.0)
>> [11607.197743] 2:3:1: cannot get freq at ep 0x84
>> [11607.198679] usbcore: registered new interface driver snd-usb-audio
>> [11607.251849] 2:3:1: cannot get freq at ep 0x84
>> [11607.276979] 2:3:1: cannot get freq at ep 0x84
>> [11643.290970] 2:3:1: cannot get freq at ep 0x84
>>
>
>
>

Hmm, it may or may not be related, but downgrading to 2.6.38 certainly solved 
the problem. I'll continue the discussion of the forum. Thanks!