Hi Guys.
Solution for in my case. I am OK.
Problem 4: Monitor goes to sleep at the end of the boot sequence when using iMac15,1 or iMac17,1 or MacPro 6,1 system definition
Open Terminal
Enter this command (it is one line)
sudo nano /System/Library/Extensions/AppleGraphicsControl.kext/Contents/PlugIns/AppleGraphicsDevicePolicy.kext/Contents/Info.plist
Arrow down to where you see <key>ConfigMap</key>
For the iMac15,1 locate the board-id "Mac-42FD25EABCABB274" and change string below it from "Config2" to "none". For the MacPro6,1 you will do the same thing but for the board-id "Mac-F60DEB81FF30ACF6". For the iMac17,1 you'll have to see which board-id is declared in your config.plist SMBIOS: "Mac-B809C3757DA9BB8D" or "Mac-65CE76090165799A" or "Mac-DB15BD556843C820" and change the appropriate entry to "none".
Save the file by pressing Ctrl+O, then enter.
Exit by pressing Ctrl+X
My case is replace all "Config2" to "none" under <key>ConfigMap</key>
Next is my case setting.
<key>ConfigMap</key>
<dict>
<key>Mac-00BE6ED71E35EB86</key>
<string>none</string>
<key>Mac-031B6874CF7F642A</key>
<string>none</string>
<key>Mac-189A3D4F975D5FFC</key>
<string>none</string>
<key>Mac-27ADBB7B4CEE8E61</key>
<string>none</string>
<key>Mac-35C1E88140C3E6CF</key>
<string>none</string>
<key>Mac-42FD25EABCABB274</key>
<string>none</string>
<key>Mac-4B7AC7E43945597E</key>
<string>none</string>
<key>Mac-65CE76090165799A</key>
<string>none</string>
<key>Mac-77EB7D7DAF985301</key>
<string>none</string>
<key>Mac-7DF21CB3ED6977E5</key>
<string>none</string>
<key>Mac-81E3E92DD6088272</key>
<string>none</string>
<key>Mac-B809C3757DA9BB8D</key>
<string>none</string>
<key>Mac-C3EC7CD22292981F</key>
<string>none</string>
<key>Mac-C9CF552659EA9913</key>
<string>none</string>
<key>Mac-DB15BD556843C820</key>
<string>none</string>
<key>Mac-F221BEC8</key>
<string>none</string>
<key>Mac-F221DCC8</key>
<string>none</string>
<key>Mac-F42C88C8</key>
<string>none</string>
<key>Mac-F60DEB81FF30ACF6</key>
<string>none</string>
<key>Mac-FA842E06C61E91C5</key>
<string>none</string>
<key>Mac-FC02E91DDD3FA6A4</key>
<string>none</string>
</dict>
Rebuild the kernel cache using the following two commands in terminal:
$ sudo kextcache -system-prelinked-kernel
$ sudo kextcache -system-caches
Reboot
NOTE: you may need to use kext-dev-mode=1 if not already using it to allow the modified kext.
And.
I use NVIDIA Web Driver 346.03.15f03 <= It is not problem.