Now, I reinstalled the whole OS, it's faster now, and it goes to sleep, but on wake up, my display doesn't turns on. After wake up, I can open the cd tray with F12 for example, just the monitor not turning on. And display sleep not working either. (The screen just freeze.) ....
Just ran into the same problem.
Fixed my AppleLCD.kext so I can now get "Start up automatically after power failure" option in Energy Saver Preferences.
Added SleepEnabler.kext to
in E/E folder; repaired permissions; restarted. Now computer will go to sleep; it will also wake up (light on front stops blinking, turns on solid), but my monitor will not wake up -- monitor's power light stays yellow (it has on/off button that's green when fully on, yellow when asleep).
Dell Dimension e520 Core2 Duo
nVidia GeForce 7300 SE (set in com.apple.Boot.plist, not with kext)
Also have this rather strange entry in System Profiler (why does my monitor not show under Display Connector, but separately?):
Status: No Display Connected
Resolution: 1680 x 1050 @ 60 Hz
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Anyone know how fix this and get monitor to wake up after sleep?