Jittering since v5.5.0+

[Oliver Official]

I have a TrackIR 5 with a Pro Clip. As of software version v5.5.0 and upwards I'm experiencing jittering, both in the software as well as in DCS (the only TIR game I play). Downgrading to v5.4.2 solves it. I have always had this problem with v5.5.0+. Regardless of hardware and Windows installation. Tried a fresh new profile based on the default one and that too suffers from it.

How do I solve this? At this point v5.4.2 still works but it is probably only a matter of time before this stops working with future Windows versions.

[jillian.smythe]

Hello Oliver Official,

Have you verified whether the behavior is visible when looking at Camera View in the TrackIR software, or is it only seen in the 3D view? Make sure that there are no stray sources of IR light being detected. What value are you currently using for smoothing? Does changing smoothing to 10 improve the jittering?

Kind Regards,

[Oliver Official]

Hi and thanks.

Changing smoothing to 10 reduces it somewhat. It masks the issue to some extent but doesn't solve it. I typically have smoothing set to 2 for snappiness. Which works wonders in 5.4.2 and older versions. To your other question, as I said, it's noticeable in the software as well as in the game/3D world. Which rules out the game being the factor, at least to me.

Let me please emphasize this again: without changing anything to my hardware, the environment, Windows, drivers, etc., uninstalling 5.5.X and reinstalling 5.4.2 solves it. And that is using the same profile and a smoothing of 2. The only factor that I have been able to determine to cause this, is upgrading the software to 5.5.0 or higher.

In your 5.5.0 changelog it says, among other items:
- Internally modernized the application including updates to DirectX and other libraries.
- Fixed issues with precision mode for the TrackIR5.

Is there anything with respect to filtering or smoothing algorithms changed as of 5.5.0 that could help point in the right direction? If need be, I can attach my profile and settings XML.

[Oliver Official]

Any feedback?

[jillian.smythe]

Hi Oliver Official,

Our team is aware of this issue and hopes to address it in a future release. In the meantime, you can try either using a higher smoothing value (i.e. 10) or revert to version 5.4.2.

Kind Regards,

[Oliver Official]

Hi Oliver Official,

Our team is aware of this issue and hopes to address it in a future release. In the meantime, you can try either using a higher smoothing value (i.e. 10) or revert to version 5.4.2.

Kind Regards,

Appreciate the confirmation, Jillian. I'll downgrade to 5.4.2 for now and keep an eye on future software updates.

[Wores1972]

I also had to revert to 5.4.2, which feels like a temporary fix at best.

[jillian.smythe]

Hello Wores1972,

Our development team is aware of the issue, so they will likely resolve it in a future software release. In the meantime, 5.4.2 seems to be a better option for users sensitive to jittering.

Kind Regards,

[Oliver Official]

I also had to revert to 5.4.2, which feels like a temporary fix at best.

Just throwing this out here in the open. Below two lines on the right side view are present in the 5.4.2 settings file but not in the 5.5.3 settings file. Both files are otherwise completely identical. I'm curious to see what happens if those two lines are manually added to the 5.5.3 settings file.

I am not going to bother reinstalling 5.5.3 again to test it myself right now as I have 5.4.2 running OK, but feel free to try if you have the time. Maybe it works, maybe it's a red herring.

[jillian.smythe]

Hi Oliver,

Thank you for sharing those findings. I checked with our development team, and neither of those settings are being used by the current software, so they can be ignored. They do not believe that those settings will have any impact on the jittering issue experienced while using 5.5.3.

Kind Regards,