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Monitor Turns Off

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I have Intel Corel i5 2500k processor
8 GB Ram
GA-Z68AP-D3 Rev. 1 Gigabyte Mother Board
Zotac Nvidia 450 GTS 1 GB Graphic Card

I have try almost all bootflag but no success....please help... the following flags I have tried
GraphicEnabler=Yes PCIRootUID=1
GraphicEnabler=Yes PCIRootUID=0
GraphicEnabler=Yes PCIRootUID=1 IGPEnabler=No
GraphicEnabler=Yes -v -x
GraphicEnabler=Yes PCIRootUID=1 Mode=1280x800x32 (maximum resolution shown in chimera bootloader)
GraphicEnabler=Yes PCIRootUID=1 maxmem=4096 npci=0x2000
npci=0x2000
-x

still I am unable to install Mevericks.... please help.....
 
Thank u. My work GraphicsEnabler=Yes Mode=1650x1050x32

Video - GT 630
 
But for me it is not working... please somebody help....
 
Hey!



Ihad this issue, tried everything from this thread, nothing worked.
But I had luck: npci=0x3000. Give a try, good luck!

GT555M 2GB
 
Looks like I have the same problem now. My computer has worked fine on yosemite with clover for about a week and a half now and this morning I turned on the computer and I have a black screen. I ran the test for the monitor itself and it passed the self test. So it sounds like the graphics card is not recognizing. I have read this thread and will try these options but I need to know how to get into the screen to make the adjustments.

Could someone please help by telling me what I should do to get to where I can see the screen and then where to make the commands?

I still have my clover install usb...I assume I will be using that is that correct?

Thank you
 
Minimall said:
The same here, at installing 10.9 Mavericks from unibeast USB. Very common problem, as i see.
MB: Gigabyte EP35-DS3R
VIDEO: Asus GeForce 8800 GTS 512mb (was OOB everytime)

I tried almost all key combinations, and even custom NVDANV50hal - nothing works.
Everytime after the moment the display losts signal - desktop continues to work, maybe even loads to install screen. I can't see it. And one more - after reset, in 100% of cases MB BIOS crashes (with the reset of settings and with error message).

Hope it helps.

Update: if it's allowed — i can share a link to some insane mac forum, where guys are talking about removing all nvidia drivers from usb to achieve installation screen. Maybe, this will work, but i don't know how to make it. Can you help?

Update 2: SOLVED!
GraphicsEnabler=Yes PCIRootUID=1 Mode=1680x1050x32 (native resolution of display)
Click to expand...



MiniMall you are the man!!!


this worked for me
 
Had the same issue with Sapphire HD 7750 on OS X 10.10.4 after I installed Hackintosh+Chameleon+MultiBeast.
To solve this, all I did is to add the following keys to the org.chameleon.Boot.plist (located in /Extra):

Code: 
<key>GraphicsEnabler</key>
<string>Yes</string>
<key>PCIRootUID</key>
<string>1</string>
<key>Mode</key>
<string>1920x1080x32</string>

So, the entire file will look like this:
Code: 
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>EthernetBuiltIn</key>
    <string>Yes</string>
    <key>GraphicsEnabler</key>
    <string>Yes</string>
    <key>PCIRootUID</key>
    <string>1</string>
    <key>Mode</key>
    <string>1920x1080x32</string>
    <key>IGPEnabler</key>
    <string>No</string>
    <key>Kernel Flags</key>
    <string>kext-dev-mode=1</string>
    <key>Legacy Logo</key>
    <string>Yes</string>
    <key>Timeout</key>
    <string>2</string>
    <key>GenerateCStates</key>
    <string>Yes</string>
    <key>GeneratePStates</key>
    <string>Yes</string>
    <key>UseKernelCache</key>
    <string>Yes</string>
</dict>
</plist>

If you have HD 7750 graphic card and want to use it on 10.10.3 and 10.10.4, follow this thread.
 
i can also see the bar and the apple boot screen after that my computer restarts but the apple software does not load up and the clover screen comes back again
 
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