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[Solved]Weird Black screen issue[Solved]

Black screen Snow Leopard retail Pre installation

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#21
rlf

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Is the mouse USB or PS/2?

Also, which boot flags seemed to work?

#22
Lakshay Verma

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The mouse is PS/2. Both the boot flags you suggested worked surprisingly.

#23
rlf

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OK, it appears you need a PS/2 driver on your flash drive. I hope you still have your Snow Leopard installation that you can use. Plug your flash drive into the Snow Leopard installation.

Download this PS/2 zip file. Put it on the Snow Leopard Desktop. Unzip it by double-clicking it. Run the installation package by double-clicking it. Make sure to point it to install on your flash drive and not into Snow Leopard.

Then boot the flash drive again -v -x npci=0x2000 arch=i386

http://www.filedropper.com/ps2pkg

#24
Lakshay Verma

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It still doesn't work. :/

#25
rlf

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I doubt that this will help, but try booting -v npci=0x2000 arch=i386

Otherwise, you're going to need to find someone from whom you can borrow a USB mouse for the installation. You might need to borrow a USB keyboard if you don't have one. This is not uncommon.

#26
Lakshay Verma

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Ohh, I see. The keyboard seems to be working, I'll have to arrange a mouse. I'll try that and let you know. :-)

#27
Lakshay Verma

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Sorry for the delay, Actually I wasn't able to find a USB Keyboard(Most of my friends either use a Wireless one or simply PS/2). So, I simply bought this: http://www.usbwholes...rter.htm<br />I was able to get through that No keyboard error but still my mouse and keyboard don't seem to work. I am able to boot Lion 10.7.3 only with the help of the boot flag

-v -x npci=0x2000 arch=i386 which you suggested before. It would otherwise get stuck at [ PCI Configuration Begin ]. I still have to boot OS X with the external hard disk as I haven't installed Chameleon yet.

Apart from that graphics are still an issue.



#28
rlf

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But you have finished installing 10.7.3 and it is running?

Resume following the guide in the Post Installation section:

Copy the /Extra folder from the USB over to the Lion hard drive

Install Chameleon. Go to this page and download the 1st PKG 1925: http://www.insanelym...howtopic=231075
Put it on the Desktop and double-click it to run it. Afterwards, see if you can boot the computer without the USB. Boot -v arch=i386

#29
Lakshay Verma

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Next step after installing Chameleon is Patching DSDT according to the guide. I'm not sure how to do it though. I am using Asus P5KPL AM/PS Mobo and I couldn't find any patches for it. Though I saw one patch for P5KPL AM. Will it work?
And if not, Is patching DSDT necessary?

#30
rlf

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The DSDT is not needed. If you copied over the Extra folder and you installed Chameleon, then try to boot the computer without using the USB. Boot -v arch=i386

#31
Lakshay Verma

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-v arch=i386 didn't work, Had to use -v -x npci=0x2000 arch=i386 to Boot. :/

-v arch=i386 got me stuck at [ PCI Configuration begin ]

#32
rlf

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OK, but first you were successful in booting without the CD, right?

Now, we've got to get that -x out of there.

Try -v npci=0x2000 arch=i386

#33
Lakshay Verma

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-v npci=0x2000 arch=i386 works! Yes, I can sucessfully boot without USB or CD. ;-)

#34
rlf

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OK, check out the computer and find out what doesn't work and we'll see if we can fix it.

#35
Lakshay Verma

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The Graphics don't work...still shows 3Mb, The ps/2 mouse isn't working, the keyboard works though(with the ps2 to usb adapter) and Haven't checked the audio, Should work though!

#36
rlf

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OK, go to the /Extra folder and look inside org.chameleon.Boot.plist and tell me if there is an entry that says GraphicsEnabler with Yes right below it. Even better, a copy of the contents of the file would be good if you can paste it.

#37
Lakshay Verma

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Okay, I'll do once I reach home. :)

#38
Lakshay Verma

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This is how org.chameleon.boot.plist looks like:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com...yList-1.0.dtd">
<plist version="1.0">
<dict>
<key>GenerateCStates</key>
<string>Yes</string>
<key>GeneratePStates</key>
<string>Yes</string>
<key>Kernel</key>
<string>mach_kernel</string>
<key>Kernel Flags</key>
<string></string>
</dict>
</plist



#39
rlf

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Try booting:

-v npci=0x2000 arch=i386 GraphicsEnabler=Yes

and see if your graphics change.

#40
Lakshay Verma

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I have tried this earlier, It didn't work.





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