New answers tagged soundcard
Purge and install the driver package: sudo apt-get --purge autoremove build-essential linux-headers-`uname -r` && sudo apt-get install build-essential linux-headers-`uname -r`
Sometimes in order for drivers to take effect, you may need to restart the machine; or, it can take a few tries of tinkering with restarting the applications before the new hardware gets picked up. Usually, if you have the correct drivers and you restart, the hardware will start working. If things still do not work, you may have the wrong drivers.
Yes, I got one today - it said "PC Compatible" but no mention of Windows, so I figured I would give the company a hard time if it did not work (even though it was less than $10) I had to go into sound settings and change it over - it is listed as "Audio Adapter (Planet UP 100, Genius G-Talk) Analog Stereo." I have not tried using it for input, but it works ...
In my case I had a fresh install of Ubuntu 14.04, so reinstalling pulseaudio and alsa would be pointless. However, running sudo alsa force-reload as in user91632's anwser did the trick.
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