Every once in a while this laptop will not detect the sound card after a reboot. Sometimes a subsequent reboot will fix it, but sometimes not.

I”ve had to execute the following sequence:

  • turn off audio in the bios (hold F12 to get to boot menu)
  • boot into linux
  • reboot into bios
  • turn audio back on
  • boot into linux
  • win at life.

Hope this helps.