"ThinkPad" key on T20 only works after suspend cycle

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Hi,

I have here a T20 with a T22 BIOS and a 2.6.32.4 kernel, plus tuxonice
and the patch from http://bugzilla.kernel.org/show_bug.cgi?id=14858 .

Now, all the ACPI keys/Fn-combinations do work just fine, except for
the "ThinkPad" key, which doesn't generate any events observable with
acpi_listen after boot. Only after I have done one suspend cycle,
the key starts working.

A simple echo mem > /sys/power/state does the job, so it's not some
side effect of some other things being done by my regular suspend
script. Also, a soft reboot is enough to disable the key again,
no power cycling necessary - and even suspending to disk, including
a powerdown, does make the key work.

Any hints as to how to debug or even fix this would be appreciated.

Florian

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