Since I've posted so much on setting this headset up I'd like to know if others are seeing a nagging issue I can't get around, high altitude headset lags.  I'm finding the headset suffers from a problem above 25,000ft with heavy clouds where it looses it's tracking and/or lags when I turn my head.  When it get's too bad it just jumps out the cockpit having my view placed above the plane until I center it again only to find some weird view that the headset defaults to until it get's it's act together again.  There can be a slight lag in the headset at any point in the sim when scenery is loading (which is acceptable) but flying airliners or the Longitude this is a problem in heavy weather.  Once you get below 25,000ft the headset calms down and it not a problem in the teens.  I've tried everything to figure this one out.  So I'm asking are others seeing this?  Many of us fly slow and low so you wouldn't notice this but in the Longitude at 40,000ft plus, it's a problem.  Now that we have all this weather in Florida I was able to test and nail this down to an issue with this headset, altitude, and clouds (not matter what you set the clouds to).  Thanks for anyone who tests this out so we all can have a resolution should others experience this.🫤

No issues here high or low with ultra clouds pmdg 737. And no out of the cockpit experience so far 😅. A textured surrounding and good lighting could help tracking maybe?

Paul 

Does this issue occur everytime when you hit above 25,000ft?

I'll ask the team to investigate if there's any unusual tracking behavior at that altitude.

1 hour ago, Calvin-Pimax said:

Does this issue occur everytime when you hit above 25,000ft?

I'll ask the team to investigate if there's any unusual tracking behavior at that altitude.

Yes.  It get's real bad with heavy clouds above 25,000ft.  Either climbing out or coming into an area with heavy clouds affects the headset negatively.  Even with low cloud settings I'm seeing this. Cruise at 43,000ft over heavy clouds is a constant reset of the headset when it pops out of the cockpit and then there's this weird view it defaults to until it get it's act together (best way I can describe it).  Then it does it all over again until I descend below 25,000ft then it calms down.😑

Strange, is your room well lit? I have my lighting frequency set to 'Auto'. I am not seeing any lagging or tracking issues.  I flew the CJ4 at 40K above the hurricane for an hour.

8 hours ago, Calvin-Pimax said:

Does this issue occur everytime when you hit above 25,000ft?

I'll ask the team to investigate if there's any unusual tracking behavior at that altitude.

Greetings.

Is the OpenXR Toolkit supposed to be disabled with the new Pimax Client? There is no way to track FPS without it.

7 hours ago, strider1 said:

Greetings.

Is the OpenXR Toolkit supposed to be disabled with the new Pimax Client? There is no way to track FPS without it.

Pretty sure you can run it fine.  Check the settings, though, so you don't double up on resolution settings, etc, from your previous headset. 

I'll try a high cloudy flight tomorrow @Dillon and see if I have the same issue or not.

1 hour ago, AJZip said:

Pretty sure you can run it fine.  Check the settings, though, so you don't double up on resolution settings, etc, from your previous headset. 

It needs to be disabled when changing settings, otherwise MSFS seems to crash. So I am not too sure how accurate it is with it on now.  As an example, I am not noticing any significant FPS jump with 90 Hz upscale. It also seems smoother with it off.

Edited October 11, 20241 yr by strider1

18 hours ago, Dillon said:

Yes.  It get's real bad with heavy clouds above 25,000ft.  Either climbing out or coming into an area with heavy clouds affects the headset negatively.  Even with low cloud settings I'm seeing this. Cruise at 43,000ft over heavy clouds is a constant reset of the headset when it pops out of the cockpit and then there's this weird view it defaults to until it get it's act together (best way I can describe it).  Then it does it all over again until I descend below 25,000ft then it calms down.😑

Understood! I’ll ask them to conduct several tests under similar scenarios. Additionally, could you please export a log file from Pimax Play? The developers may find useful information regarding the abnormal tracking during their analysis.

6 hours ago, Calvin-Pimax said:

Understood! I’ll ask them to conduct several tests under similar scenarios. Additionally, could you please export a log file from Pimax Play? The developers may find useful information regarding the abnormal tracking during their analysis.

Where do you want me to send the log file to?

14 minutes ago, Dillon said:

Where do you want me to send the log file to?

[email protected]

Hi @Dillon

I've just done a flight in the PMDG Boeing 737-700 with total cloud, set at 10000 feet to 40000 feet, and flown through that from 20000 feet up to 35000 feet and back and have experienced no issues either in internal view or external view.

While at those levels, I pushed my tracking hard, by looking right behind me, up to the ceiling and down to the floor while looking forwards, sideways and behind me.  

I also tried again, flying through a heavy 'snowscape' of clouds rather than a complete grey-out.

I have to say that the Crystal Light behaved impeccably.

 

My room was daylight-lit.  I will try again this evening (UK time) under artificial light and report back.

 

4 hours ago, Calvin-Pimax said:

[email protected]

Do I need to do a flight first and then send the log or can I just send my current log and it will have the history needed for your research into the issue?

Hi, @Dillon

OK - just repeated the same flight with it dark outside (in real life) but with good lighting in the room and the display screen at normal 2.5' or so in front of me.

First the direct results, but then there are some 'buts' I'll come onto too.

 

As far as any impact when flying below, through and above 25000' height in and coming out of thick clouds, all was OK.  Apart from the 'But' below, all was OK with nothing untoward at any of the heights or cloud conditions or transitions.

 

But there is something I've discovered that HAS been bugging me over the past week - and I've found a solution!!!  😀 .  There's just the possibility that it is related, @DillonQuick question: are you having these problems in daytime with daylight in the room or do you generally use the sim under artificial light?

The reason I ask is:

Although I haven't had specific cloud /height-related aberrations, I HAVE been having an issue over this last week when I'm using the Crystal Light in the evenings with artificial light - and that is the tracking.

What it's been doing - and because I was paying more attention with my test this evening, I realise it was doing it tonight too - is that the headset is losing the precision of tracking when running under artificial lighting as opposed to daylight.

What I mean is that, in daylight, when I turn my head left to right, it does just what it does in real life - my virtual body stays in the same place and my virtual vision rotates left and right.

BUT under artificial light it has been acting differently.  Here, when I move my head left and right, my whole body position shifts slightly left and right too.  It's very noticeable in, say, a Cessna 152 because it can shift to the point that your virtual head is going into and slightly through the side window!  But I've realised that there is a noticeable shift even in the large cockpit of an airliner.

And I then remembered a trick that I used to use in X-plane VR in my HP Reverb in the early days where similar things happened.  I put a flip chart pad I had in my room in front of the display screen - basically blocking the screen.  Result: tracking absolutely and instantly back to normal. 

Basically, under normal daylight, the display screen is not overly bright compared with the rest of the room.  But, even with good lighting, the screen under artificial light is proportionately much brighter than under daylight and, I reckon, that brightness confuses the inside-out tracking.

I've seen other folks on this and other forums talk about having difficulties with tracking under artificial light and so will post separately this simple fix.

But hence my question @Dillon .  If you are experiencing your problems in daylight in a brightly lit room, then it may well be some other issue.  But if it is under artificial lighting conditions, then it is worth trying to temporarily block the glare of the display screen, or even just twisting it round edge on and see if it makes a difference.  A faint bell tells me that you can't actually turn the display screen off (can't remember why) but even just putting a newspaper in front will probably do the trick.  And certainly, a confused inside-out tracking can do what you say, Dillon, and send you out of the cockpit altogether - because that's what happened to me in X-plane in the early Reverb days before I learnt the above trick.

 

     

Edited October 11, 20241 yr by AJZip