(In reply to Hillwood Yang from comment #6) > (In reply to Takashi Iwai from comment #4) > > Could you try to boot with the old Leap 15.3 kernel and see whether it works? > > If zypper or rpm complains dependency, ignore it and forcibly install. > > I confirm it is a kernel bug. I boots the system with text mode, it also > reproduces this bug. > > And I installed kernel 5.10 from > https://build.opensuse.org/package/show/home:mbrugger:branches:bpir2-kernel/ > kernel-source, the system is no longer freeze. Please don't install any random kernel you find in OBS, but use the oficial repositories for that.