ACPI working
dmesg was displaying message "ACPI: Interpreter disabled." there was no /proc/acpi directory and when i tried starting acpid, it was erroring out "cant find /proc/acpi/events". After a bit of fiddling and googling found that i need to pass the "acpi=on" option to the kernel to get ACPI working. And now poweroff command / the power button gives a clean shutdown. Need to check speedstep/cpufreq.
hola a todos soy un novato en esto de linux ayuda por favor, ya me cansé de desinstalar linux cada vez que me presenta un problema, no entendí como hago para encender el acpi si ustedes saben detalladamente se los agradeceria un monton