The builtin WWAN modem of Lenovo ThinkPad T400 laptops does not seem to wake properly when the laptop is suspended on Ubuntu.
I have written a small Power Manager script to fix this problem, it seems that
Ubuntu 9.10 (Karmic Koala) does not support wakeup scripts in
Although it tires me a bit how much Ubuntu seems to break in new releases lately,
it was worthwhile to search for the mechanism “du jour”.
It seems that scripts need to be placed in
Add the script below to a new file,
/etc/pm/sleep.d/10_thinkpad_wwan, and it
should be called upon suspend and resume to revive your modem on resume.
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