XFree86 & ACPI don't like each other?

[James Snow]

Hello list,

I've recently joined the freebsd-mobile world with 5.2.1 on
an IBM ThinkPad T22. I'm still settling into it and getting
used to the quirks of FreeBSD on a laptop.

On the whole, things are working delightfully. My Netgear
WG511T works perfectly under if_ath, and sound came up
painlessly with snd_pcm and snd_csa. On board Ethernet is
fxp and workes perfectly; used it for the FTP install.

On the other hand, X and ACPI don't seem to get along very
well. If I boot with ACPI, X will sometimes hang when
starting or stopping. Doesn't appear to be very consistent
or predictable, but I can't get through more than 1 clean
start and stop of X without it locking the machine up solid.
Have to pull the battery and AC power to reset it.

It's definitely an ACPI interaction because if I boot
without ACPI I can start and stop X all day without
issue.  It's not that I go in and out of X often, but the
occassional hang on start and the fairly reliable hang at
exit have me fsck'ing the drive a bit more often than I'd
like.

I know ACPI is still a work in progress, but I was wondering
if any other T-series ThinkPad users have seen something
like this?


-Snow