I've noticed that when I'm playing a fullscreen game in FC5 (it's happened with Enigma, PlanetPenguin Racer, TORCS, Defendguin, and GL-117, but not during normal use), the screen will fade to black about every 10 minutes, stay that way for 20-30 seconds, then suddenly turn back on again. It only happens in GNOME, and even when I've turned off all power management options and killed the gnome-power-manager daemon. However, when I kill the gnome-screensaver daemon, the problem disappears (the normal screensaver doesn't use a blank screen). I'm running it on a Gateway MX6121, in case it matters.
This is fixed in HEAD upstream. There is a patch on the following bug report that will fix it however it is a bit large and scary for a stable branch: http://bugzilla.gnome.org/show_bug.cgi?id=342728
Hi, We no longer support Fedora Core 5 and I am currently trying to get my open bug count down to a more manageable state. I'm going to close this bug as WONTFIX. If this issue is still a concern for you, would you mind trying to reproduce on a supported version of Fedora and reopening? (this is a mass message)