ULMB FPS bug?

[moonbogg]

So, BF4 was staying pegged at 144fps. Then I tried ULMB and had to set the monitor to 120hz. I went back to Gsync mode and now my FPS doesn't go past 115-120fps in fullscreen mode. If in windowed mode, it goes higher. Something it jacked up. Any ideas?

 

[Mondozei]

Yes, the answer to your question lies in your own text. It should be obvious, but apparently it isn't. The FPS in BF4 doesn't go past your monitor's hertz. It's a fairly smart game in that sense. It doesn't stress the GPU more than necessary. Since ULMB requires 120 Hz, that means the FPS cap in BF4 is 120. Thus, what you're experiencing is not strange but entirely predictable. As a sidenote: do you prefer G-Sync or ULMB and why?

 

[moonbogg]

I know what you are saying. I understand that part. The drivers are stuck at 120hz and so with gsync enabled, the game is capped at 120fps, not 144 like it should be. When I disable gsync the fps goes back to 144. Disabling vsync doesn't let it go beyond 144 though. Also, I checked all settings and monitor is set to 144hz etc. There is a gsync bug where things get stuck at 120hz.

 

[bystander36]

I know what you are saying. I understand that part. The drivers are stuck at 120hz and so with gsync enabled, the game is capped at 120fps, not 144 like it should be. When I disable gsync the fps goes back to 144. Disabling vsync doesn't let it go beyond 144 though. Also, I checked all settings and monitor is set to 144hz etc. There is a gsync bug where things get stuck at 120hz.

Have you check to see if the monitor has been set back to 144hz? In ULMB mode, it drops you to 120hz, and likely stayed there after it was turned off.

 

[moonbogg]

Yes it was turned back to 144hz. Still, gsync limits FPS output to 120. I just turned gsync off. It seems to be broken anyway.

 

[bystander36]

I remember Crysis 2 had similar issues at 120hz. It often would revert back to 60hz and wouldn't allow 120hz. I wonder if this is a game issue or driver issue. I used to restart with 3D Vision on, then turn it off, to revert the issue. I doubt that would work here, since 3D Vision is capped at 120hz (60 per eye).

 

[MarkLuvsCS]

try turning off the monitor and turning it back on after turning gsync off.

 

[moonbogg]

It was a Gsync bug. Nvidia has a hotfix driver for it and that fixed it.