No Sound after Kernel Upgrade

After I upgraded to the current kernel version (2.6.24-21) the sound suddenly stopped working on my Dell D830 laptop running Ubuntu Hardy 8.04. Today I tried to solve it and found the solution on this page (http://linux.dell.com/wiki/index.php/Ubuntu_8.04/Issues/No_Sound_After_Distribution_Or_Kernel_Upgrade). Although it speaks of kernel 2.6.24-17 it also applies to 2.6.24-21. Here are the steps I had to … Continue reading No Sound after Kernel Upgrade