id summary reporter owner description type status priority milestone component version resolution keywords cc 58 Thinkpad r40e, unusable if boot with ACPI.PSD (ACPI 3.04) Peter pasha "ACPI V3.01 and V3.02, system slows down so much that keyboard keys are missed Description: I use a Thinkpad r40e. ACPI V3.01 does not shutdown the laptop I tried V3.02, but never did have the opportunity to try shutdown. The whole pc is massively slowed down. Mouse moves, and keystrokes are missed, the system is very unresponsive. Removing ACPI V3.xx fixes slowdown. The slowdowns are not consistent, only about once every 20 secs. ACPI V2.13 and APM.add V1.06 work with this laptop with no major issues to report. I suspect that this problem might be affecting netwk apps too. " defect closed major ACPI PSD 3.05 wontfix