Jump to content

Black screen when using EFI strings 8800GT 512MB


  • Please log in to reply
3 replies to this topic

#1
adamsweeting

adamsweeting

    InsanelyMac Sage

  • Members
  • PipPipPipPipPip
  • 255 posts
Hey people... Hope someone can help me out, I'm going mad here!

I've got a perfect vanilla 10.5.8 running on another harddrive...
Got Snow running good on a seperate harddrive, with sound, networking - just can't get hardware accelerated GFX.

Installed retail Snow using my 10.5.8 system, EFIv10.1, the usual extensions in /E/E
I am not using dsdt.aml..

GFX is working via software rendering, but as soon as I add EFI strings to the boot.plist in /E/E - the system boots, but I get a black screen. I know it's running coz I can get sounds, eject DVD tray via keyboard etc.

I've tried using EFI studio, UIinstaller, copying the hex from my 10.5.8 system = all don't work.

One thing I thought of was that a while ago when there was an issue with mouse jerking when a Quicktime update came out, I flashed my GFX card with a custom ROM that solved it.
I don't know if that would be the cause... because it works perfectly with EFI in 10.5.8
I also got the same result adding Natit.kext to /S/L/E

#2
pentiumpc

pentiumpc

    InsanelyMac Protégé

  • Members
  • Pip
  • 10 posts
I have a 8800GT 512MB, work perfectly in SL..

let me know how I can help..

#3
adamsweeting

adamsweeting

    InsanelyMac Sage

  • Members
  • PipPipPipPipPip
  • 255 posts
What's the device ID of your card?

#4
adamsweeting

adamsweeting

    InsanelyMac Sage

  • Members
  • PipPipPipPipPip
  • 255 posts
Solved now.

I flashed my GFX with a vanilla ROM from the manufacturers website using nvflash. Then created my own custom EFI string using OSX Tools with DVI / DVI output.

All working properly now.





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

© 2014 InsanelyMac  |   News  |   Forum  |   Downloads  |   OSx86 Wiki  |   Mac Netbook  |   PHP hosting by CatN  |   Designed by Ed Gain  |   Logo by irfan  |   Privacy Policy