okay...
I am Using Msi Gaming RX 470 With (Syn master s19b150) monitor
I am Using Dp To Vga Adapter
It was Working Before
I Wanted To update My Drive ,So I uninstalled the old One( Crimson 16.10.2) then rebooted the system but there was no signal to my monitor
I Tried Using My old HD5450 which Had a Vga-port and It works Fine
I Don't Think My Rx 470 Is Dead , I just Bought 2 month ago , and the GPU fans were spinning , so the adapter?