[ltp] ACPI on Thinkpad R40e apparently different from R40

[Leonard Norrgard]

On the Thinkpad R40e, I currently only get the power button + battery
indicator working with the current alpha ACPI drivers. Interestingly,
the APM drivers behave in the opposite way (not sure about the power
button for APM, though), everything works with APM except for the
battery indicator.

Test setup:

- Thinkpad R40e, type 2684.

- Debian kernel 2.6.8 (config mods) + ACPI patch (patch
  against 2.6 stable release)

- IBM-ACPI 0.4

The R40e differs from the R40 in that it lacks at least the
ThinkLight, serial ports and WLAN.

-- Leonard