Thank you for taking the time to answer
my report. Just to follow up ... It appears that CONFIG_ACPI_PROCFS_POWER was set in the 2.6.24 kernel: [ Sun 13-Jul-2008 20.45 eric ] ~ $ cat /boot/config-2.6.24-1-686 | grep CONFIG_ACPI_PROCFS_POWER CONFIG_ACPI_PROCFS_POWER=y [ Sun 13-Jul-2008 20.45 eric ] ~ $ cat /boot/config-2.6.25-2-686 | grep CONFIG_ACPI_PROCFS_POWER # CONFIG_ACPI_PROCFS_POWER is not set |