hello, i thing i need your help...
after updating to last sierra, and last clover, everything was fine...
but today, when i start on Sierra , the apple is coming on the boot screen, and it looks like the screen is going off... .
if i boot with HDMI connected to my plasma tv, Sierra is working fine on the tv.
it looks like the backlight on screen is going off.....
i'm now on win partition .
thank for your help
.