Description of problem: Machine: Dell Inspiron 630m After update from kernel-2.6.11 to kernel-2.6.15 several devices stop to work (ethernet, graphic adapter, ...). Also the kernel cannot power off or reboot the system. acpi=off solves the problem. Version-Release number of selected component (if applicable): kernel-2.6.15-1.1833_FC4 How reproducible: Always Steps to Reproduce: 1. Boot without acpi=off 2. 3. Actual results: Several devices doesn't work Expected results: All devices must work with ACPI enabled Additional info:
With vanilla kernel 2.6.16-rc5 it works without acpi=off.
With vanilla kernel 2.6.15.6 it works without acpi=off.
With newer kernels it works