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I have uswsusp installed and working on my Compaq laptop, and if I run "s2disk", my computer hibernates and returns perfectly. Even if I run it from a command prompt in Gnome.
If I use the hibernate button in Gnome, though, something wierd happens. The laptop sits at a flashing cursor while it appears to snapshot the system (I don't get the progress information I get from s2disk), then shuts off. When I start it again, uresume shows that it didn't find a snapshot, and it looks like I shut down my laptop incorrectly (filesystems are rechecked, etc).
What is Gnome running to hibernate the system?
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Gnome uses pm-utils to do power management features...
I have replaced standart uswsusp with tuxonice because of speed and features.
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you can change the backend pm-utils uses to suspend/hibernate in the config file /usr/lib/pm-suspend/defaults.
or, as the file proposes, create a custom config in /etc/pm/ to override the default settings.
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