Laptop automatically sleeps on lid close in Jessie

[Peter Ley <peteley11235@gmail.com>]

Hi all,

I recently upgraded to Jessie to fix another problem I posted about on
the list, and it went swimmingly (much to my relief as I'd never
performed a dist-upgrade before).

Now when I close my laptop lid, it automatically goes to sleep, which
would be fine except it has never been able to recover from sleep. It
didn't do this until I upgraded. I tried removing the pm-utils package
which had been left over from last time I tried to get sleep working,
but it still does it. How do I stop this behavior?

Alternatively, I would appreciate some advice for properly
testing/configuring suspend for my hardware. Last time I tried, I
remember playing with the config haphazardly for about an hour before
giving up. I have an IBM Thinkpad T42. 

Thanks,
Pete