I'm sorry for having to post my question. My searches through Google and the Debian list archives returned no data on iMac power management. If my question's already answered somewhere & I just didn't find it, a URL would make me happy.
I've finished installing Debian Sarge 3.1r2 onto an old iMac DV (Slot Loading) and I've found that the screen stays on 24x7 now. I'd like to find how to make it sleep. Putting the entire system to sleep (with the pulsing light on the front) will interfere with things like cron, so I suppose that an acceptable alternative would be to turn off the display instead (although full system sleep, complete with the pulsating power button, would be nice.) I made a trip to the KDE Control Center -> Peripherals -> Display -> Power Control and checked off "Enable display power management" and even tried restarting for good measure, all with no luck. I've tried both apmd and pmud (with pmud-utils), although the later complained about being installed on a desktop machine. It's easy enough to enable to the Blank Screen screensaver (in KDE Control Center -> Appearance & Themes -> Screen Saver), although the faint glow of the screen remains visible because the CRT is still consuming power.
