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 cans� de desinstalar linux cada vez que me presenta un problema, no entend� como hago para encender el acpi si ustedes saben detalladamente se los agradeceria un monton