Hello,
First of all: I can listen to music in all the players, by internal speakers or by headset headphones.
I bought a Creative Live HD VF 0790 usb webcam, which is advertised to work with Linux, and plugged it into a Thinkpad 410s.
According to dmesg, it is recognized by name and the kernel (v. 4.0.5) seems to use the uvc driver.
According to lspci, there are HDA Intel 5 Series / 3400 audio chipset and a 'Mic' and 'Dock Mic' device on PCI.
I can also see a CX20585 'hdaudioC1D0' type 'speaker', which appears as audio device in the players. It appears as both output and mic device in audacity.
Somewhere i read i should make sure /dev/audio* gets created after i plug in the webcam. I can see a /dev/video0 appearing, but there is no /dev/audio*.