(In reply to Takashi Iwai from comment #1) > Which hardware is this? Please give hwinfo output. > > Also, how reproducible? If it happens always, it'd be easier to debug. If > it's intermittent, more difficult... > > Last but not least, does it happen with the recent upstream kernel, e.g. the > kernel in OBS Kernel:stable repo? The kernel has invalid signature and will not load.