i could solve my poweroff failure at shutdown (see message with listings of dmsg, lspci, etc. in bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/580867 ) i used as the only kernel-boot-option:
acpi=oldboot
and the shutdown with poweroff did work like in older kernel versions again.
i could solve my poweroff failure at shutdown /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/580867
(see message with listings of dmsg, lspci, etc. in
bug
https:/
)
i used as the only kernel-boot-option:
acpi=oldboot
and the shutdown with poweroff did work like in older kernel versions again.