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[WxTech]

My rig is a 2019 vintage i5 9600 overclocked to 4.8GHz, with an RTX 2060 GPU driving a 2560x1440, 144Hz monitor.

Thus far I've always used the maximum refresh rate, to take advantage of the 144Hz screen. But I got to not very much liking the large variability in frame rate, depending on graphical load and computation of heavier action. It made even 60FPS periods seem to be comparatively 'choppy' due to the contrast against those > 2X faster frame rates under light loads. And on top of that, it seemed that this FPS jumping about had some impact on TrackIR update rates, with little periods of what seemed to be 30 updates/sec, in spite of ~60FPS performance.

And so I tried an experiment earlier this evening. The image below shows all my Nvidia Control Panel settings (requiring 3 screenshots stitched together due to the inability to resize the window within which the settings appear). Of particular note are the two frame rate settings, which I've set to 60 FPS. (The Background Application Max Frame Rate setting may play no role here--unless it might pertain to the TrackIR app concurrently running???)

Right away I rather liked this. The far more consistent frame rate, which the console reports as fluctuating between 59-61 (unless a heavy graphical/computational load causes it to drop lower) is rather more enjoyable. And the TrackIR performance does seem to be just that bit more consistent as well.

[SAS~Storebror]

My rig is a 2019 vintage i5 9600 overclocked to 4.8GHz, with an RTX 2060 GPU driving a 2560x1440, 144Hz monitor.

Welcome to the club. We've got a quite similar setup.
I've got an i5 9600K @4.6 GHz, RTX 2080 Super GPU driving two monitors, one 2560x1440, 144Hz, Nvidia G-Sync, and another cheap 1080p 60Hz for secondary stuff to show. TrackIR here, too.
My Nvidia settings follow the "KISS" principle, in that I try to change things, measure their impact, and only keep those changes that give a real benefit. All others are Nvidia default driver settings.
I'm a happy camper with these settings for several years now.




Mike

[WxTech]

Another advantage I neglected to mention is that Mike's smooth zoom mod now has a more consistent rate, being tied to the tick rate, or frame rate. Previously this could vary by a factor of about 3; now the variability is reduced to essentially nothing, unless frame rates drop noticeably below 60, which is not common at all. Yay!

[choctaw111]

I don't have some of those settings in my control panel
to include the monitor settings.
I'm running the latest driver on a 3090.
I've been having a HUGE problem with Vsync limiting to 30FPS
and I have no idea how to fix it.
When I turn Vsync off, I get about 300FPS in the QMB but a LOT of image tearing

[WxTech]

Chocktaw,
What options are available to you for vsync? Besides On and Off, I have Fast, Adaptive and Adaptive (half refresh rate). As you can see, I've settled on Fast. And the app's hint tells me that vsync performance is improved when Triple Buffering is On.

What's you monitor's refresh rate?

[choctaw111]

Chocktaw,
What options are available to you for vsync? Besides On and Off, I have Fast, Adaptive and Adaptive (half refresh rate). As you can see, I've settled on Fast. And the app's hint tells me that vsync performance is improved when Triple Buffering is On.

What's you monitor's refresh rate?
I also have those options for refresh.
After a little more digging, I now find that I have setting for my monitor refresh using Win11 display settings and my max refresh is only 30 with no way to make it higher.  I'm not sure when that happened!  I've been using the same display for many years and running at 60Hz refresh the whole time.

[choctaw111]

My display is an
ASUS PB287Q.
I just checked the site and it is a 60HZ display.
I have no idea what's going on!

[choctaw111]

After delving even deeper into the OS, I'm seeing that there is only ONE resolution that is now supported at 60HZ,
1176x664!
Like I ever use THAT resolution!
This is a 4K display at 60Hz and now I'm dealing with mess! haha!
Time for a new display I think.
It's a business expense after all!  bwahahahaha!

[WxTech]

I forgot that I had discovered a while ago that I must set Antialiasing - Transparency to Multisample, or else the high clouds present as a double image having a small, fixed offset (very ugly and annoying.)

[SAS~tsisqua]

I forgot that I had discovered a while ago that I must set Antialiasing - Transparency to Multisample, or else the high clouds present as a double image having a small, fixed offset (very ugly and annoying.)

Glenn!!!!!!!
That was a problem I had learned to live with.
Thanks (again) to you it's fixed.

You Da Man!
Bird

[WxTech]

On the road toward further refinements...

As I hinted at, it's long been my impression that the TrackIR update rate operates in multiples of two. If FPS drops below 120, the tracker update rate appears to be 60. If FPS falls below 60, the update rate appears to drop to 30.

My initial frame rate limit in the Control panel settings was an even 60. While monitoring fps via the console during flight, I note that it tends to vary plus/minus a frame or two. And it seems that there are some occasional TrackIR update 'hiccups'. I therefore raised the frame rate limit to 62, meaning there are no more spurious jumps below 60, unless there is a real drop. This seems to reduce further the brief head tracker rate hiccups.

[SAS~Storebror]

I'm using TrackIR with uncapped frames on my G-Sync monitor and don't have any such issues.
All I could find on the INet about such issues eventually ends up with resource handling issues on OS level, general rack performance, USB connectivity issues or a combination thereof.
Starting points:
https://forum.dcs.world/topic/287877-choppy-trackir-view-with-vsync-off-on-60hz-monitor/page/2/
https://forums.naturalpoint.com/search.php?keywords=vsync


Mike