From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030703 Description of problem: Updating to kernel-2.4.22-1.2040.nptl caused ACPI to stop working. Dmesg shows: ACPI: Subsystem revision 20030813 ACPI: Interpreter disabled. Version-Release number of selected component (if applicable): kernel-2.4.22-1.2040.nptl How reproducible: Always Steps to Reproduce: 1. Update the kernel 2. boot 3. Additional info:
You now need to boot with the acpi=on boot parameter if you want to use ACPI.