Allow interrupts during APM BIOS calls
configname: CONFIG_APM_ALLOW_INTS
Linux Kernel Configuration
└─>Power management and ACPI options
└─>APM (Advanced Power Management) BIOS support
└─>Allow interrupts during APM BIOS calls
In linux kernel since version 2.6.12
Normally we disable external interrupts while we are making calls to
the APM BIOS as a measure to lessen the effects of a badly behaving
BIOS implementation. The BIOS should reenable interrupts if it
needs to. Unfortunately, some BIOSes do not -- especially those in
many of the newer IBM Thinkpads. If you experience hangs when you
suspend, try setting this to Y. Otherwise, say N.
the APM BIOS as a measure to lessen the effects of a badly behaving
BIOS implementation. The BIOS should reenable interrupts if it
needs to. Unfortunately, some BIOSes do not -- especially those in
many of the newer IBM Thinkpads. If you experience hangs when you
suspend, try setting this to Y. Otherwise, say N.