Last night I got to play with ibm-acpi for a little while. It was refreshing to watch the backlight on the R50 go to sleep after being continually on while running on linux, thanks to radeontool and ibm-acpi’s magic to intercept Fn-F3. Priyadi Iman notes that ibm-acpi is included in kernel 2.6.10, but I’m still running the Ol’Thinkpad on 2.6.9, so I will have to play around with a newer kernel and report back my findings.