APM Display to sleep renders a black screen instead of shutting off monitor

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http://forums.fedoraforum.org – Hi, I just recently switched from Ubuntu to Fedora 11, and noticed that the very same thing that was bugging me with Ubuntu behaves the same with Fedora. Although I have configured APM to put the monitor to sleep, it only appears to display a black screen. I can tell 'cause the backlight of the TFT monitor remains lid. I had this very same problem with Ubuntu, in both Gnome and KDE environments. I don't really mind for the desktop as I manually turn off the monitor, but I can't do so for the laptop. The laptop is a Toshiba Tecra A9 (HowTos)