Power management stuff mostly unset since the default makes the
suspend, battery status and, worst of all, Crt/Lcd switches using
the Fn-function keys unusable. All those things work with this
configuration file:
..
#
# Power management options (ACPI, APM)
#
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
#
# ACPI (Advanced Configuration and Power Interface) Support
#
# CONFIG_ACPI is not set
#
# APM (Advanced Power Management) BIOS Support
#
CONFIG_APM=y
# CONFIG_APM_IGNORE_USER_SUSPEND is not set
# CONFIG_APM_DO_ENABLE is not set
# CONFIG_APM_CPU_IDLE is not set
# CONFIG_APM_DISPLAY_BLANK is not set
CONFIG_APM_RTC_IS_GMT=y
# CONFIG_APM_ALLOW_INTS is not set
# CONFIG_APM_REAL_MODE_POWER_OFF is not set
..