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Sierra - Nvidia (GTX970) - Black Screen at login


Brenku
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Hello,

 

I am using SMBIOS 12,2

As I have an Intel Sandy Bridge i7-2600k

GFX card is an Nvidia GTX970

 

I have a fresh install of Sierra from USB, not an upgrade.

I installed Clover, installed my kexts, everything boots to desktop, etc. Works fine. 

 

However, after installing the NVIDIA web drivers, after enabling and a reboot, it gets to the login screen and the screen goes black.

I think the system, is up and working. If I proceed to blindly enter my password, the HDD activity lights go nuts, etc. 

Somehow it's just not outputting the display.

 

I have: 

  • Installed the Nvidia web drivers (367.15.10.05f01 for 16A323)
  • Enabled the Nvidia_web startup in my config.plist
  • Removed the nvda_drv=1 from the boot arguments 
  • Removed the nvda_drv=1 from the NVRAM
  • Tried adding Mac-942B59F58194171B (set to none) to my /S/L/E*/AppleGraphicsControl.kext/Plugins/AppleGraphicsDevicePolicy.kext/Contents/Info.plist

 

I am at my wits end. I have no idea what else I can do. 

 

I would really appreciate some help.

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Hello,

 

I am using SMBIOS 12,2

As I have an Intel Sandy Bridge i7-2600k

GFX card is an Nvidia GTX970

 

I have a fresh install of Sierra from USB, not an upgrade.

I installed Clover, installed my kexts, everything boots to desktop, etc. Works fine. 

 

However, after installing the NVIDIA web drivers, after enabling and a reboot, it gets to the login screen and the screen goes black.

I think the system, is up and working. If I proceed to blindly enter my password, the HDD activity lights go nuts, etc. 

Somehow it's just not outputting the display.

 

I have: 

  • Installed the Nvidia web drivers (367.15.10.05f01 for 16A323)
  • Enabled the Nvidia_web startup in my config.plist
  • Removed the nvda_drv=1 from the boot arguments 
  • Removed the nvda_drv=1 from the NVRAM
  • Tried adding Mac-942B59F58194171B (set to none) to my /S/L/E*/AppleGraphicsControl.kext/Plugins/AppleGraphicsDevicePolicy.kext/Contents/Info.plist

 

I am at my wits end. I have no idea what else I can do. 

 

I would really appreciate some help.

 

 

 

If you have the monitor plugged in via HDMI and you have with this cable:
 
post-309057-0-49579400-1476283731_thumb.jpg
 
 
change it to this other:
 
post-309057-0-81708800-1476283777_thumb.jpg
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Have you tried igpu as primary display? Bios settings set igpu as primary display works or is required on most of the newer AMD cards in Sierra, it may apply to Nvidia? It wasn't necessary in El Capitan, but Sierra requires integrated graphics on many previously supported cards.

 

It can be a little tricky, use your board connection (HDMI?, or DVI) to see clover screen, make any settings adjustments and before you hit enter switch the cable to graphics card and then hit enter. You will have a black screen until password screen/boot. This is how it works on the AMD cards, it may work for you.

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