Comment # 10 on bug 1172498 from Takashi Iwai

For a temporary testing, you don't need to add the repository, but just
download kernel-default.rpm from the download URL, and install it via zypper
in:
  zypper in kernel-default*.rpm

The kernel should keep the backward compatibility, and it must work as is.  The
only problem would be when you're booting with Secure Boot or require
Nvidia-binary driver.  For checking the availability of PCI device, just
booting the new kernel and checking alsa-info.sh output should suffice, even
without Nvidia binary driver, though.