I had this problem with a previous kernel, switched back to a lower one, waited for the next kernel to come and the sound worked. I now have the same problem with 5.13 and would like to know why and rectify the problem.
0 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xdf340000 irq 154
P.S. The sound works in 5.13 and the previous kernel, but does not always. A restart of the system usually solves the problem.