Problems with Hibernate

[ubuntu prole]

Greetings,

When I suspend my workstation (details in the signature) using the hibernate
feature I am unable to "wake" it later.  Keyboard and mouse inputs are
ignored.  I am forced to reboot the machine.  A quick search revealed
several postings elsewhere that talk of problems waking 7.10; but none that
included viable help. Are there any workarounds or suggestions as to what to
try?

I installed xserver-xgl and compizconfig-settings-manager yesterday, and was
using the 'Extra' visual effects, which seemed to be using a tremendous
amount of CPU even when the machine was sleeping.  I'd like to use hibernate
to quiesce the machine when it isn't going to be in use for a while.  I can
turn the Visual Effects off, but I'd rather keep them and be able to use
hibernate if at all possible.

Thanks in advance,
Mark

-- 
I don't believe I understand all I know about this.
Release 7.10 (gutsy), Kernel Linux 2.6.22-14-generic, GNOME 2.20.0
Memory 2.2 GB, Processor 0: Intel(R) Pentium(R) 4 CPU 3.4 GHz, Processor 1:
Intel(R) Pentium(R) 4 CPU 3.4 GHz
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