on Hardy, June 2007 MacBook.  Had no problem on Gutsy.  Same problem
with suspend-to-ram and lost touchpad configuration that can be restored
by switching VT (despite that suspend/resume switches to a console from
X while suspended...).  Doing things with `psmouse` doesn't have any
effect -- after all, it's not normally loaded on my laptop.  Rather,
module `appletouch` is: removing and adding that module causes the
symptoms too.  Putting `appletouch` in /etc/pm/config.d/config
SUSPEND_MODULES didn't fix things: it actually broke them, so my
touchpad didn't work at all even though `appletouch` was loaded, such
that I had to then unload and reload `appletouch` explicitly, and then
switch VT and back.

Hmm, the following comment in /etc/acpi/resume.d/65-console.sh (not
being used in Hardy) looks interesting, I wonder if there's any evidence
or documentation anywhere in the linux-world that could elaborate the
statement...

"
# Some hardware needs another X/console switch in order to bring stuff back
chvt $CONSOLE;
if [ x$DOUBLE_CONSOLE_SWITCH = xtrue ]; then
  chvt 12;
  chvt $CONSOLE;
fi
"

-- 
Synaptics Touchpad reset fails on resume from suspend to ram/disk (hp nx7400, 
feisty)
https://bugs.launchpad.net/bugs/104060
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