Same here:
Ubuntu 20.04 Asus ROG GL552V Intel Core i7-6700HQ nvidia GeForce GTX 960M / driver version: 435.21
Monitor shows Asus splashscreen properly (before os starts) Monitor stays black (but is detected by system) It seams to not be detected by graphics card (but not sure now)
Same here:
Ubuntu 20.04
Asus ROG GL552V
Intel Core i7-6700HQ
nvidia GeForce GTX 960M / driver version: 435.21
Monitor shows Asus splashscreen properly (before os starts)
Monitor stays black (but is detected by system)
It seams to not be detected by graphics card (but not sure now)