Hello Takashi Iwai, thank you for your consideration. Currently I have a TW System installed with Kernel 5.19.8-1-default on SSD. The hwinfo and dmesg logs are taken from this System. Please get back to me if something is missing. Otherwise, I shall do as told, i.e., install Leap 15.4 and on it a Leap-15.3 using --force if necessary. I shall report to you when I'm done. Cannot promise it'll be today though. Regards, M.