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