Comment 29 for bug 199059

thanks for the link.

I discovered this one, from the one you posted:
http://people.freedesktop.org/~hughsient/quirk/quirk-suspend-debug.html

"sudo pm-suspend --quirk-dpms-suspend" works the best yet. If this very basic behaviour was implemented as the HAL and GNOME default, plus a locked screen, then every would work perfectly for me...

Unfortunately there's still that "Policy timeout" error, and a bit of messy pixels at the top of the screen (red), while resuming the GNOME way, rather than this pm-suspend way. They garbled bits disappear after the gnome/xscreensaver locked screen appears, but now I know that they don't *need* to be there, because pm-suspend works perfectly