I want to move a working install of Ubuntu from one computer to another by taking the hard drive out of the first and putting it into the second. Everything seems to work except that I have no sound at all. Apparently when using Skype, the other person can hear me, so audio input works, but not output. Sound was working just fine on the old computer, but after doing
lspci | grep Audio it appears that there is different audio hardware in the new computer.
I know that Ubuntu auto-detects hardware, and my hypothesis is that I need to have it redetect audio hardware. First of all, is this actually the case, and if so, how do I get Ubuntu to do that?