Posted 13 October 2011 - 08:43 AM
I've updated Lion to 10.7.2 and now after the boot process when the apple logo disappear, instead of desktop I get a black screen. The system seems to be works under that black screen but there is no desktop. Only black.
Please help me!
Thanks in advance
Posted 13 October 2011 - 08:54 AM
i had the same issue on a mac with Graphics that are Efi Injected... i deleted the device-properties and add GraphicsEnabler=Yes to boot.plist, and it works.
Posted 13 October 2011 - 02:45 PM
Posted 13 October 2011 - 04:03 PM
Posted 13 October 2011 - 05:19 PM
Posted 13 October 2011 - 05:45 PM
Posted 13 October 2011 - 06:26 PM
short restore from my last backup, and even icloud runs like a charm.
thanks to everyone that helped me!
i had exactly the same problem. as i used graphicsenabler set to yes in boot.plist and nothing else, i changed it to "no". at least i can now log in. i used no dsdt and so i tried NVEnabler, which did not work for me (NVidia Geforce 8400GS). any ideas how i might fix my graphics in 10.7.2?
thanks in advance!
Posted 13 October 2011 - 09:38 PM
Posted 13 October 2011 - 10:11 PM
Posted 13 October 2011 - 10:24 PM
i did checked while i had this trouble another card just to be sure it's a graphic problem (which i firstly experienced), so i inserted the 8400GS and got to the desktop, but no QE/CI
with the 220GT i got to nothing (Black Screen),
so i enabled Screen Sharing and had to play with all sort of things with my iPod (different DSDT with and without injection, no DSDT, Graphicsenabler=y/n, and finally, EFI string, which worked)
Posted 13 October 2011 - 10:30 PM
So is the only way to get the screen working by using efi strings and not using DSDT to inject?
Is this likely to be solved in the near future? I want to keep things as simple as possible.
Posted 13 October 2011 - 10:38 PM
Posted 14 October 2011 - 01:24 PM
I have a GTS 250 (512MB) card and upon booting OS X following the 10.7.2 update, I was also greeted by a black screen.
I had been using an EFI string in my com.apple.boot.plist to inject the graphics card, but this apparently was causing the system to fail.
I tried the following:
- Removed my DSDT just in case it was causing problems-- I don't have graphics injection in my DSDT so this didn't make a difference. For the remaining attempts, the DSDT remained in /Extra.
- Removed EFI String from com.apple.boot.plist, but kept <GraphicsEnabler><No> key in com.apple.boot.plist-- this allowed OS X to boot into the GUI, but without proper resolution or accelerated graphics.
- Removed EFI String, changed <GraphicsEnabler> key to <Yes> -- this booted with "full" QE/CI and proper resolution, but it was extremely choppy with intermittent white flashes on the screen and buggy animations.
- Removed EFI string, changed <GraphicsEnabler> key to <No>, and added NVEnabler.kext (64-bit) to /Extra/Extensions-- a verbose boot indicated that the extension wasn't being loaded, so no dice.
- Removed EFI string, changed <GraphicsEnabler> key to <No>, and added NVEnabler.kext (64-bit) to /System/Library/Extensions and repaired with KextUtility-- VOILA!
Hope that helps somebody. Check my signature for more details on the rest of my hardware. Feel free to PM me if you have a similar card and can't get it to work!
Now, if we can take care of this iCloud business of my Apple ID not being recognized as an iCloud ID... grr...
Posted 14 October 2011 - 10:25 PM
Thank you for this. It fixed the problem.
Black Screen FIX (DSDT Injection):
Posted 15 October 2011 - 12:10 AM
I was also using EFI string for my Nvidia 9800 GT.
Removed the string and used GraphicsEnabler=Yes in my org.chameleon.Boot.plist.
Posted 15 October 2011 - 07:57 PM
Posted 16 October 2011 - 08:14 AM
Black Screen FIX (DSDT Injection):
Thanks. It works for me to.
However, it's quite bizarre as previously to do this change, if I rebooted OSX without any KextCache (I cleaned all of them with ONYX - or I rebooted with the alt key pressed), it works. But I've go the black screen as soon as the KextKernel cache is loaded. No idea why ???
Posted 16 October 2011 - 03:12 PM
I've used the fix to edit my plist and was able to generate a new EFI String thats now working like before and backwards compatible!
A short guide:
Locate the following section in your in.plist or what ever you called it:
Replace NVDA,GeForce with NVDA,Parent.
Generate a new EFI String and insert it into your org.chameleon.Boot.plist.
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