Hi, I test myself which says when CONFIG_CPU_IDLE=y, Lenovo ideapad S10-3 can not boot. The CPU is Atom N450, and I also find the report[2] that says intel_idle works fine with N450. I do not have much knowledge about intel_idle. is there any similar report that on some machine intel_idle halt the system or any suggestion for next step debug? [1] http://launchpad.net/bugs/634702 [2] http://www.spinics.net/lists/linux-pm/msg21334.html -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html