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LEOMODE

macrumors 6502a
Original poster
Jun 14, 2009
565
57
Southern California
I have EVGA GTX680 Mac Edition with boot up screen enabled.

After updating the Mac OS from El Capitan to Sierra (not High Sierra), I can't see my boot screen anymore.
Is there a reason why I can't see it anymore? Did Apple support stop on this?

Now I swapped my boot drive to El Capitan but I still can't see the boot screen anymore. So I can't even go to Safe Menu and stuff.

Does anyone know how to fix this?
 
Maybe try a PRAM reset ( hold down P + R + Option + Command keys straight after you hit the power button - wait for the CHIME then you can let go of the keys. - I always wait for a 2nd. chime just in case . . ;)) and then immediately hit the Option key to see if you get the boot screen. Might work. Hope it does.
 
I'm wondering if you'd see the boot screen if you connected a monitor via a different port...

Actually you were right. I was mainly connecting my screen to displayport and I couldn’t see the screen but after hooking up to HDMI I can see the white boot screen... I don’t know why I cant see it from displayport though...
 
Actually you were right. I was mainly connecting my screen to displayport and I couldn’t see the screen but after hooking up to HDMI I can see the white boot screen... I don’t know why I cant see it from displayport though...

I can't answer "why" but I've seen it before...and there's a lot of evidence on the web of others experiencing the same issue.
 
Actually you were right. I was mainly connecting my screen to displayport and I couldn’t see the screen but after hooking up to HDMI I can see the white boot screen... I don’t know why I cant see it from displayport though...

Did you change the monitor? Is it 4k and DP set at version 1.2?
 
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