Solution to system halted during Ubuntu ora Linux 7 Shutdown

1. Shutdown

Symptom: The System halted screen does not automatically turn off the power.

Solution: Add apm = on apm = power_off acpi = off at the end of the row where the kernel is located in vi/etc/grub. conf.

Cause analysis: the kernel does not support acpi power management.

2. I found that acpi is poorly supported by various Linux releases. I have a say in this regard, because I have installed Ubuntu, red-flag Linux 7, openSUSE, and Fedora. Basically, they all have a problem. If you do not close acpi, it is generally not possible to install acpi. You often need to add acpi = off noapic to the startup Item. Therefore, it is a potential obstacle for normal cainiao to install Linux. Many new Linux users cannot install the system, and the installation of black screens and scroll bars is basically due to the acpi. Should we blame computer manufacturers or Linux publishers?