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Flashing vertical lines

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I frequently get flashing vertical lines in P3D 2.2 when under high GPU load, especially with cloud shadows enabled.  They often appear immediately after panning the view, and only stay there for a fraction of a second, so I can't take a screenshot.  I started seeing this problem after upgrading to 2.2 and enabling cloud shadows.

 

I initially thought it might be a problem with my GPU (a GTX670), but since I was about to upgrade it, I didn't spend much time investigating.  I have now upgraded to a Titan Black (not overclocked), and still have the same problem: the fact that it affected two cards, and doesn't appear when I run GPU benchmarks (Heaven or Furmark), strongly suggests that it's not a faulty GPU.  I also think it's unlikely to be a power supply problem (which is 750W btw), because the Titan uses much more power than the 670, so surely if my PSU was on the edge with the old card, it would have major problems with the new one, but the card otherwise seems fine, and this problem is no worse than with the old card.

 

I also don't think it's a driver problem: I am running the 337.5 beta driver now, but saw the problem on an earlier version (331.58) as well.

 

So, I'm thinking it might be a problem with P3D 2.2 itself.  Is anyone else experiencing this problem?  I could raise this on the P3D forum, but thought it's worth seeing if anyone here has any more info, before reporting it.

 

Regards,

Jacob

 

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Yes, I see this same issue using a 780GTX latest drivers.  I remember screenshots that look like what I am seeing back when many were experimenting with Texture Bandwith Multi  tweaks in FSX.   While a bit annoying it's not crippling.  I also see similar artifacts when the sim begins starts  generating the scenery on initial loading.

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Yes, I also sometimes experience it with my GTX 780 Ti OC. I think that it should be reported, are you going to raise it with LM?

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Typically the flashing vertical lines just mean that you have overloaded your GPU and are getting anomalies.

 

Vic

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I see this as well, not very often though so I choose to ignore it. 780 GTX with latest beta drivers.

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Hello. I have an R9 290X and am also seeing the lines in Prepar3D 2.2. I thought it could be an ATI problem since for me at least FSX has been unusable for quite some time due to nasty graphical corruption regarding ATI cards/drivers.

 

However I started looking around for others with the same problem in Prepar3D and I found nVidia owners have problems as well. So here I am. There are even a few Youtube videos where this glitch is present, but goes seemingly unnoticed by the author.

 

Here is an example with version 2.1:

 

-Between 7:28 and 7:29 in the center of the screen.

-Between 7:41 and 7:42 look slightly up and to the right of the center of the screen. Some lines shoot up from what appears to be warehouses to the right of the road.

 

Disclaimer: This is not my video and I apologize in advance if posting it here is deemed inappropriate for whatever reason.

 

 

Looking carefully you'll probably see other instances in the video.

 

I do believe someone should open a new thread in the Prepar3D support forum. It does take a keen eye to see this issue, but now we have proof that it's not that rare.

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Nothing new here. The same thing happens occasionally in FSX. It is caused by a temporary overload of your graphics card or scenery corruption. It is not a bug in either FSX or P3D. Just like the occasional "floating houses".

 

No point in opening another thread.

 

Vic

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I may agree that it's nothing new, but I can see no other program were such a thing would happen and have it not classified as a bug.

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I never saw it before V2.2 so I think it's a new thing. My cpu was overloaded in V2.0 and V2.1 but I didn't see these vertical lines.

 

I'm loving V2.2 but LM might want to look into this to see if anything can be done.

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Maybe it's more frequent in V2.2 or more frequent for some but in any case it shouldn't be happening.

My video card is new, I have the latest drivers and I am constantly monitoring it. It stays at around 70-73 deg. Celsius with 1.4 - 2.8 Gb of memory occupied in P3D. In more demanding games, like Crysis 3 or Arma 3 it performs flawlessly.

 

With the plethora of FSX bugs, we've grown accustomed to reconcile with the smaller ones since there was no fixing them anyway. But now we have a chance to speak up and get these problems fixed.

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I frequently get flashing vertical lines in P3D 2.2 when under high GPU load, especially with cloud shadows enabled.  They often appear immediately after panning the view, and only stay there for a fraction of a second, so I can't take a screenshot.  I started seeing this problem after upgrading to 2.2 and enabling cloud shadows.

 

I initially thought it might be a problem with my GPU (a GTX670), but since I was about to upgrade it, I didn't spend much time investigating.  I have now upgraded to a Titan Black (not overclocked), and still have the same problem: the fact that it affected two cards, and doesn't appear when I run GPU benchmarks (Heaven or Furmark), strongly suggests that it's not a faulty GPU.  I also think it's unlikely to be a power supply problem (which is 750W btw), because the Titan uses much more power than the 670, so surely if my PSU was on the edge with the old card, it would have major problems with the new one, but the card otherwise seems fine, and this problem is no worse than with the old card.

 

I also don't think it's a driver problem: I am running the 337.5 beta driver now, but saw the problem on an earlier version (331.58) as well.

 

So, I'm thinking it might be a problem with P3D 2.2 itself.  Is anyone else experiencing this problem?  I could raise this on the P3D forum, but thought it's worth seeing if anyone here has any more info, before reporting it.

 

Regards,

Jacob

 

Same here, I have this as well since v2.2. You're running the same VGA card/drivers as I. Never saw this prior to v2.2. But then again, I updated my graphics driver the same period as P3Dv2.2

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I encounter these lines in FSX (sorry for some off topic) with my new GTX780 Ti, but when I switch to window mode these lines do not appear it seems. I thought OK, some day I will transfer to P3D, but it is the same there it appeared!

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Try turning your settings down. It really is a hardware problem. The fact that your hardware and settings cause graphic anomalies is not a bug. It is simply fixed - turn down your settings. Check your video temps.

 

Think of it this way - if you overclock your cpu right to the edge and you get an occasional CTD while running a benchmark - is it a bug in the benchmark

 

There is also the slight possibility of a corrupt file - you could try a repair install but I doubt that's the cause.

 

V2.2 puts heavy demands on the GPU if you crank up the settings, especially cloud shadows in heavy overcast you can EASILY swamp the card and get anomalies and degrading FPS.

 

 

 

Vic

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I was advised to remove 

 

[bUFFERPOOLS]
Poolsize=0

 

from .cfg. I have loaded airport where these lines always occurred and they disappeared. It looks like a remedy. But this is in FSX!

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I was advised to remove 

 

[bUFFERPOOLS]

Poolsize=0

 

from .cfg. I have loaded airport where these lines always occurred and they disappeared. It looks like a remedy. But this is in FSX!

 

 

Yeah, FSX would do the same thing using BF=0 ar a limited threshhold when using high levels of Autogen... I believe its the ang spiking, when the load is heavy. BP=0 placed more stress on the GPU as P3D does without any tweaking... I've seen it in v2.0 onwards. I suppose it could be called a bug and is part of the way the engine shows its being stressed, rather than just dropping frames...

 

BTW loge ... what was your performance like going from a GTX670 to a Titan?.... I cannot afford a Titan, but wonder if there is much to be gained by a GPU upgrage for V2.2.

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I made a simple test with everything turned down except autogen buildings. Basically it happens anyway, but after "Dense" it's more and more obvious. Other settings don't seem to affect this issue much if at all.

 

So as far as I can see it's not a hardware problem, it's not an overloading problem since at those low settings I can get between 60-100 fps. I'd say it's just a glitch that's more apparent on some systems rather than others (like many glitches) for whatever reason.

 

I hope one of you opens a new thread over at the Prepar3D support forums. I might do it myself if I can find the time.

 

PS: In a proper application graphics settings should never cause glitches like this, not when otherwise the performance is good. It does happen, yes, but it's rare. What should happen is either poor performance or program hangs or crashes in extreme circumstances.

I don't think it's helpful at all to blame users and suggest turning down settings on systems that are otherwise fine. This may mask the problem but won't fix it.

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I tell you what - save yourself some time - do a google search and go through all the various forums for FSX and P3D and look for "spikes" or "graphic spikes" or "vertical lines". You will find literally hundreds of posts over the YEARS all relating to the SAME thing. The graphics are being overloaded, a corrupt file or overheating - PERIOD.

 

It is NOT a bug. FSX and P3D are designed to make the most of your hardware and, as such at THIS time, there are very few configurations that will run it full out ( if any - don't have any word on the new Titans in SLI yet). If you continue to push your hardware beyond it's capabilities you WILL continue to have problems and LM has and will continue to tell you one thing - adjust your sliders to a realistic setting.

 

Tune your system and find the best BALANCE that works for you. If you are getting spikes no matter what you do - return your graphics card. It really IS that simple.

 

When we get stronger hardware down the road, it will go away but by that time P3D will be pushing the limits even further.

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So you know how my system is doing from where you are sitting? When I'm telling you that I'm constantly monitoring my system and that it's all fine then I don't know what I'm saying?

 

So I'm overloading my system because you say so, not because this can actually be verified with diagnostic tools or other more demanding games. Fair is fair, but when you're presented with evidence and still solely blame the user's hardware then it seems you're not listening and are actually hurting.

 

How about we do this: we raise this issue on the Prepar3d forums, provide all the necessary feedback and try to find exactly the cause of the problem. To me this looks like the best way to go about things. Much better than constantly blaming the hardware or the users or a certain configuration or whatever.

 

Several of us are trying to get to the bottom of this and you're not helping. Your input was and still is helpful as long as you don't get tied down into repeating the same thing over and over again without actual proof that that's what's really happening. Please stop and let us figure this out properly.

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According to the info you presented, you bet I can diagnose your system from here. You have said absolutely NOTHING different from any of the many posts on this subject through the years.

 

If it walks like a duck, and talks like a duck and looks like a duck - guess what - it is a duck.

 

 

But - if you wish to reinvent the wheel - go for it.

 

And do please post your revelations for the rest. No matter how you slice it you will find that it relates to stressing your hardware.

 

Vic

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Thanks for the feedback - reassuring to see that I'm not the only one with this problem. I've posted a P3D support topic: http://www.prepar3d.com/forum-5/?mingleforumaction=viewtopic&t=6700#postid-35487

 

Thought it was worth a try, as I'm seeing this in v2.2 in situations that have pretty good fps - certainly better than I was getting in 2.1, without the artifacts. So while it's unlikely to be a bug per se, there may have been some changes in 2.2 that make it stress the GPU in a different way, and which can perhaps be worked around.

 

BTW loge ... what was your performance like going from a GTX670 to a Titan?.... I cannot afford a Titan, but wonder if there is much to be gained by a GPU upgrade for V2.2.

I saw a pretty noticeable improvement: my 670 would often struggle in heavy clouds unless I turned down the AA settings, and shadows were only usable in very light weather situations, whereas now I can enable either 4xSGSS AA or cloud shadows (or even both if there aren't too many clouds) while still usually getting 30+ fps in non-CPU bound situations (i.e. outside big cities). It's a little hard to quantify, as I upgraded to v2.2 only a few days before upgrading the GPU, but roughly, a GPU-bound situation that gave me 15-20 fps with the 670 will probably give me 25-35 now. Of course, it doesn't help at all in CPU-bound situations: I have precisely the same fps over Manhattan in fair weather as I used to have (about 20 fps with very/extremely dense autogen and a bit of traffic).

 

A GTX780 approaches the performance of a Titan Black for less cost, and EVGA have a 6GB version coming out soon, if you want to prepare for a multi-monitor SLI setup in the future (I haven't seen more than 3GB used yet on a standard 1920x1200 setup, so 6GB may not be needed for that).

 

Regards,

Jacob

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I have the same problem. To compensate, I turn down the auto gen building to normal and the spikes disappear. I have a R9 280X card.

 

 

Sent from my iPad using Tapatalk

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Same issue. Assumed it was a glitch with latest nVidia drivers but I guess it must be v2.2 if AMD users have the same issue. Doesn't really bother me too much, but would be nice to see whatever has caused it since fixed (as v2.1 was fine).

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Good job opening a P3D thread. I ran some tests last night and posted my observations there.

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