Comment 16 for bug 769092

I also have this problem and the workaround that I am using is to add the module to the "Modules" section in /etc/default/acpi-support. When adding it I noticed the following note:

# Add modules to this list to have them removed before suspend and reloaded
# on resume. An example would be MODULES="em8300 yenta_socket"
#
# Note that network cards and USB controllers will automatically be unloaded
# unless they're listed in MODULES_WHITELIST

In my case I have a ralink 2860 card, the module that Ubuntu used out of the box didn't work so I had to use the module provided by the manufacturer. I'm curious if other people with this problem are also using different modules and those modules are not being unloaded as intended because of it. I don't know enough about how the network modules are unloaded perhaps someone else does.