Comment # 6 on bug 1203176 from Takashi Iwai

Could you give more details about your system?  At least the hwinfo output, the
running kernel version and the dmesg output might be helpful.

The latest Leap 15.4 update kernel (*-150400.24.21.2) has a bug on some systems
with intel_iommu.  You can try the older version (*-150400.24.18.1) instead.