Maureen L Thomas wrote: > Any help would be greatly appreciated.
you were already answered before on Debian 9 it might be you need some debugging after the shutdown via the power switch. it could be anything from hardware to software - the archlinux article is good I would start with alsamixer first you must do the work yourself BR -- FCD6 3719 0FFB F1BF 38EA 4727 5348 5F1F DCFE BCB0
