Jump to content

P5N7A-VM Mountain Lion 10.8.2 Blank Screen

2 posts in this topic

Recommended Posts

Hoping someone has experience installing on this motherboard. I am using the standard built in Nvidia GeForce 9300 graphics.


I can install mountain lion without any issues. The only boot flag required is "PCIRootUID=0"


Once booted into Mountain Lion 10.8.2 everything is working just fine except for sound. I ran [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] and installed Audio - ALC888 (which is compatible with ALC1200 on the board).

I am not sure which other flags to choose for 10.8.2


After reboot I put in the flag "PCIRootUID=0" again but on the hard drive boot and not using USB. I get the white screen with the apple logo. Can hear the hard drives clicking and after a few seconds the monitor loses signal and I have a blank screen. If I press keys I can hear the MAC os "Ding" sound in the background. So I think it has booted to the Login screen just cant see it. I have tried running the "-v" verbose flag so I can see the problem but the screen goes blank in that too. So I am pretty sure it has booted. Just cant see it!


Has anybody got experience with this problem? This board was very popular so I am sure this would help a lot of people.


Thanks for taking the time to read my post!

Share this post

Link to post
Share on other sites

Would you mind posting any extra kext for this board that you're using (beyond the ALC888) and/or dsdt? Running into some problems trying to get 10.8.2 to work on this board. Didn't have any issues with 10.6.8/10.7.5 but 10.8 will sometimes KP with NVSMU (nvidia chipset kext). I'm curious if perhaps there is something I'm missing. As for blank screen, have you tried PCIRoot=0? I'm not sure if that is any different from PCIRootUID but according to thread about PCIe nvidia card, this was used to fix blank screen issue.

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.