I recently made a complete reinstallation of Windows 7 along with FS9 and all my addons and I'm now experiencing a very strange problem connected to the V-sync tweak (1/2 refresh rate). I had no problems at all before the reinstallation.

 

What happens is that i have freezes and stutters when i chnage view direction in the 2D panel, and the FPS seems to be a bit unstable. All other views, including VC, is working fine. This is only happening when the V-sync tweak is applied.

I have tried three different versions of Nvidia Inspector and a couple of different Nvidia Drivers.

 

Does anyone know what is wrong?

Can you attatch your fsx.cfg here as "Prop_cfg.txt" and a screenshot of your Inspector - then we can see the whole thing. Thanks

The uploader does not allow me to upload my fs9.cfg, but here are the important parts of the file:

 

[DISPLAY.Device.NVIDIA GeForce GTX 260.0]

Mode=1920x1080x32

MipBias=8

TriLinear=1

[DISPLAY]

UPPER_FRAMERATE_LIMIT=30

TEXTURE_BANDWIDTH_MULT=100

RUNWAY_LIGHTS_SURFACE_SCALAR=1.0

RUNWAY_LIGHTS_VASI_SCALAR=1.0

RUNWAY_LIGHTS_APPROACH_SCALAR=1.0

RUNWAY_LIGHTS_STROBE_SCALAR=1.0

[TERRAIN]

TERRAIN_ERROR_FACTOR=100.000000

TERRAIN_MIN_DEM_AREA=10.000000

TERRAIN_MAX_DEM_AREA=200.000000

TERRAIN_MAX_VERTEX_LEVEL=21

TERRAIN_TEXTURE_SIZE_EXP=8

TERRAIN_AUTOGEN_DENSITY=5

TERRAIN_USE_GRADIENT_MAP=1

TERRAIN_EXTENDED_TEXTURES=1

TERRAIN_DEFAULT_RADIUS=4

TERRAIN_EXTENDED_RADIUS=4

TERRAIN_EXTENDED_LEVELS=4

 

 

Here are my Nvidia Inspector settings

 

 

Hi Propellor: Copy and rename your fs9.cfg as "Prop_fs9.txt", and attach it to the post using the "More Reply Options", (bottom right) as those in your post aren't the most important sections/parameters.

 

What Vsync tweak are you referring to?

 

Your Inspector looks fine, but there are a number of newer NVidia driver versions available.

 

Thanks,

Hi Propellor: Copy and rename your fs9.cfg as "Prop_fs9.txt", and attach it to the post using the "More Reply Options", (bottom right) as those in your post aren't the most important sections/parameters.

 

What Vsync tweak are you referring to?

 

Your Inspector looks fine, but there are a number of newer NVidia driver versions available.

 

Thanks,

 

Hi, thanks.

 

I have already tried the newest driver and a few other but there was no difference. As I mentioned, it worked perfectly before the reinstallation and I have the same tweaks applied to the fs9.cfg as before (I have also deleted it many times and started from a default cfg file). I am doing everything the same way as I did before when it worked.

 

I did note now that this problem is not connected to FS9 only. I installed FSX and the same thing occurs.

 

I also see a short short drop in FPS when I change view direction in the 2D cockpit and when going from external view to 2D cockpit. This seems to be why the stuttering and freezes occur.

 

The V-sync tweak I am reffering to is when setting 1/2 refresh rate in Nvidia Inspector, 60 Hz refresh rate for the monitor and 30 FPS locked in FS.

OK. One thing we found with DX10 was adding "DisablePreload=1" to the [Main] section fixed vsync without having to resort to adding "ForceFullScreenVSync=1" to the [Graphics] section - this in addition to the "Standard" and "1/2 Refresh Rate". This is in FSX,, but don't know about FS9.