GTAV crashing on new 4K monitor

[TurtleVeangeance]

I got a new monitor today, all games play fine on it except for GTA 5. When I launched it at first, it started in the smallest resolution then when I tried to set it to 4k and fullscreen it crashed, this happened every time I launched the game until I reinstalled it after I reinstalled it I had to set everything back to max (what they originally set to before I got the new monitor), but when I got to grass setting and clicked apply, it crashed, I think its grass quality because I launched it again and set everything to max setting except for grass quality and it worked fine until I turned V-Syinc off then it crashed, so now Im here. How the hell do I fix this?
My monitor: https://www.pccasegear.com/products/34668/acer-xb281hk-28in-4k-g-sync-widescreen-gaming-monitor/.

My Rig:
Asus Rog Strix GTX 1080Ti
Intel I7 7700K
16GB Hyper-X Fury Ram 2666
MSI Z270 Gaming Pro Carbon

 

[TurtleVeangeance]

MERGED QUESTION
Question from TurtleVeangeance : "GTAV crashing on new 4K monitor"

I got a new monitor today, all games play fine on it except for GTA 5. When I launched it at first, it started in the smallest resolution then when I tried to set it to 4k and fullscreen it crashed, this happened every time I launched the game until I reinstalled it after I reinstalled it I had to set everything back to max (what they originally set to before I got the new monitor), but when I got to grass setting and clicked apply, it crashed, I think its grass quality because I launched it again and set everything to max setting except for grass quality and it worked fine until I turned V-Syinc off then it crashed, so now Im here. How the hell do I fix this?
My monitor: https://www.pccasegear.com/products/34668/acer-xb281hk-....

My Rig:
Asus Rog Strix GTX 1080Ti
Intel I7 7700K
16GB Hyper-X Fury Ram 2666
MSI Z270 Gaming Pro Carbon

 

[TurtleVeangeance]

MERGED QUESTION
Question from TurtleVeangeance : "GTAV crashing on new 4K monitor"

I got a new monitor today, all games play fine on it except for GTA 5. When I launched it at first, it started in the smallest resolution then when I tried to set it to 4k and fullscreen it crashed, this happened every time I launched the game until I reinstalled it after I reinstalled it I had to set everything back to max (what they originally set to before I got the new monitor), but when I got to grass setting and clicked apply, it crashed, I think its grass quality because I launched it again and set everything to max setting except for grass quality and it worked fine until I turned V-Syinc off then it crashed, so now Im here. How the hell do I fix this?
My monitor: https://www.pccasegear.com/products/34668/acer-xb281hk-....

My Rig:
Asus Rog Strix GTX 1080Ti
Intel I7 7700K
16GB Hyper-X Fury Ram 2666
MSI Z270 Gaming Pro Carbon

 

[bignastyid]

Please don't spam the forum, keep the issue to 1 thread.

 

[TurtleVeangeance]

Please don't spam the forum, keep the issue to 1 thread.

sorry I had a bit of a brain fart. cant delete them though

 

[TurtleVeangeance]

MERGED QUESTION
Question from TurtleVeangeance : "GTA V is crashing on new 4K monitor"

I got a new monitor today, all games play fine on it except for GTA 5. When I launched it at first, it started in the smallest resolution then when I tried to set it to 4k and fullscreen it crashed, this happened every time I launched the game until I reinstalled it after I reinstalled it I had to set everything back to max (what they originally set to before I got the new monitor), but when I got to grass setting and clicked apply, it crashed, I think its grass quality because I launched it again and set everything to max setting except for grass quality and it worked fine until I turned V-Syinc off then it crashed, so now Im here. How the hell do I fix this?
My monitor: https://www.pccasegear.com/products/34668/acer-xb281hk-....

My Rig:
Asus Rog Strix GTX 1080Ti
Intel I7 7700K
16GB Hyper-X Fury Ram 2666
MSI Z270 Gaming Pro Carbon

Are you trying to play the official (paid) copy of the game?

Are you trying to play the official (paid) copy of the game?

Yes, I've owned it for 2 years now

What are you using to connect to your 4K monitor, hdmi or displayport cable?

What are you using to connect to your 4K monitor, hdmi or displayport cable?

A display port cable that came with the monitor. its plugged into the monitor and runs directly into the my GPU. Ive tried just HDMI but it didn't detect any signal.