Este tópico teve muitas sugestões que parecem bons leads para você acompanhar.
Coisas para experimentar
ideia # 1 - systemdSe o seu sistema usa o systemd, tente usar isto:
$ systemctl poweroff
ideia # 2 - módulo do kernel da lista negra mei_me
ideia # 3 - interrogar as mensagens de inicialização do journalctlThis mei_me ( Intel Management Engine Interface) for Mobile Intel Express Chipset, causes a lot of trouble.
You can blacklist the module, you could lose functionality that I'm not aware of.
If your laptop supports it you may be able to disable it in your BIOS. I read people having success disabling it, though their all different issues.
Dê uma olhada no journalctl
para comentários sobre o que está causando a reinicialização do sistema.
$ sudo journalctl -b
ideia # 4 - Adicionar parâmetro do kernel acpi = force
Tente adicionar o seguinte aos parâmetros de inicialização do seu kernel. Estes podem ser anexados ao final da linha do seu kernel em /etc/grub2.cfg
.
linux /vmlinuz-3.14.4-100.fc19.x86_64 root=/dev/mapper/fedora_greeneggs-root ro rd.md=0 ... acpi=force ...
ideia # 5 - Tente uma fonte de alimentação diferente (maior classificado)
ideia # 6 - desativar o WOL (Wake On LAN)My power supply was 450W. However, I got tired of going around the head until I read on page 23 of the GA-Z87N-WIFI manual which case we use the PCI-E was advisable to use a power supply of 500W or higher, as lower springs would destabilize (possible cause of the reboot).
Made to upgrade to a 650W power supply and reboots after shutdown, never happened.
Conclusion: new graphics cards are hungry for energy. Always check the power requirements of the printing and adjust energy sources.
ideia # 7 - bug no kernel com o módulo xhciBy default, the Wake-up LAN is enabled in BIOS (Power Manegement). As I have a Synology NAS configured for my private network, the "trickster" is sending packets to the network and enables me to Linux machine after doing this shutdown.
I followed your recommendation (I disabled the Wake-up LAN) and everything works as expected.
xhci: Fix spurious wakeups after S5 on Haswell
Fonte Bug 66171 - [PATCH] Poweroff não funciona, apenas reinicia