I can confirm this bug for a Compaq Evo N610c running Ubuntu Gutsy 7.10:
After hibernate, USB is not working. It used to work with Dapper. It
works again after adding "ohci_hcd ehci_hcd" or "ehci_hcd" to MODULES in
/etc/default/acpi-support. Maybe you could add those modules to variable
MODULES in /usr/share/acpi-support/Compaq.config for $model = "Evo Evo
N610c", and then source /usr/share/acpi-support/device-funcs in
/etc/acpi/hibernate.sh to make things "just work".

By the way: The comment before MODULES in /etc/default/acpi-support says
that network cards and USB controllers will automatically be unloaded.
However, in /etc/acpi/suspend.d/60-generate-modules-list.sh only network
drivers are added to MODULES.

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USB does not have power after wake-up
https://bugs.launchpad.net/bugs/99267
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