Hm, I'm currently using 4.7.0-040700rc5-generic on 16.04 with $ grep acp /etc/default/grub GRUB_CMDLINE_LINUX="noprompt persistent acpi=noirq"
and have fully working boot, reboot, poweroff (on the Lenovo A740, not A540). (For wifi, I use https://github.com/lwfinger/rtl8723au dkms). nielks, could you try a newer kernel, e.g. 4.7.0-040700rc5-generic ? If the same kernel doesn't work, maybe A540 has a different issue regarding poweroff. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1463422 Title: [Lenovo IdeaCentre A740] Doesn't poweroff on shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1463422/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
