For what it's worth, the ThinkCentre 8183-PWG is also affected. I have
tried rebuilding the sarge 2.6.8 kernel with ACPI_SLEEP and
X86_UP_IOAPIC disabled, and also updating to the latest 2005-06-14
flash (2AKT50AUS), to no avail.
The problem isn't quite straight-forward to trigger on this box,
though - it appears at what seems completely random times. Also, at at
least one occasion, the machine was able to bring itself out of that
sluggish state on its own! If anyone has a reliable way of triggering
the ThinkCentre Slug State(TM), it would help a lot diagnosing this
problem.
This might be a side-effect that has nothing to do with the problem
itself, but when the system has been in "the sluggish state" for a long
time, it appears all memory is allocated but no swap space.
Initially, with very old flashes, I had problems with the machine
locking up hard at random times with the system speaker beeping with
ear-shattering intensity, when I typed on the PS/2 keyboard. This
behvior is gone - apparently a BIOS issue.
-ukh
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