No display after El Capitan install on 2009 Mac Pro

Discussion in 'Mac Pro' started by Zorn, Jul 21, 2015.

  1. Zorn macrumors 6502a


    Feb 14, 2006
    After seeing the nVidia web driver release for El Capitan today, I installed the 10.11 Public Beta on my Mac Pro. I ran nv_disable=1 before starting the install, then via screen sharing I went back in, did sudo nvram boot-args="nvdrv_drv=1 rootless=0"

    I installed the El Cap web driver, made sure nVidia web driver is selected, but the system will never come up on the monitor. The only way I can get in at all is via screen sharing on my Macbook Pro. Is there some other boot args I need to use or any reason why I can't get anything from the display?
  2. haralds macrumors 6502a


    Jan 3, 2014
    Silicon Valley, CA
    If you are installing an unsigned driver, you will also need "kext-dev-mode=1"

    As a result, the line would be:
    sudo nvram boot-args="kext-dev-mode=1 nvdrv_drv=1 rootless=0"

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