Translation:The faces appeared on the screen.
Why doesnt the literal translation work? It makes perfect sense to me. "Come up on tue screen" works just fine in real conversation.
Can it also be 'showed up'?
Yea, or maybe even 'popped up' :)
I agree... tried, rejected!
Although I did not answer correctly myself, I believe that John842218 is correct that "the faces came up on the screen" is perfectly acceptable English.