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vbazillio

Does SLI users have seen less visual artefacts with 353.06 nvidia drivers ?

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Hi all,
I’m currently trying to setup and tune my config with two GTX770 focus on SGSAA. I’m running nvidia driver version 352.86 and encountered visual artefacts (see below screen shots).

 

18585179318_c48f02c8ab_b_d.jpg

 

18586817019_ab471a47fc_b_d.jpg

 

Does forum users of the 353.06 nvidia drivers notice less (or no more) artefact or does the situation hasn’t change ?

 

Have nice flights SLI or not ;-)

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Hi,

 

actually we are caught with these artefacts in SLI. AFAIK there is no current quick solution for this. What you can try is to disable the effects by simply move it out of the effects folders to see how that works. Search for something with lightning, sparks, wakes etc.

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You're saying you solved these graphical issues with TS present in SLI?

I've been using those settings for almost a year. I had the same artifacts as others and these settings resolved them. I sometimes drop the framerate limiter and occasionally change the P3D sliders but other than using the 353 drivers this is same profile I've used with 347.88. I also run occasionally with 32xCSAA but can notice no difference.

 

Vic

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I've been using those settings for almost a year. I had the same artifacts as others and these settings resolved them. I sometimes drop the framerate limiter and occasionally change the P3D sliders but other than using the 353 drivers this is same profile I've used with 347.88. I also run occasionally with 32xCSAA but can notice no difference.

 

Vic

 

The reason why you do not see any artifacts is that the nVidia SLI profile for P3D2 is disabled. However SLI is working.

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The reason why you do not see any artifacts is that the nVidia SLI profile for P3D2 is disabled. However SLI is working.

 

I saw the same artifacts when using the force AFR trick from the days when the SLI profile lacked. 

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The reason why you do not see any artifacts is that the nVidia SLI profile for P3D2 is disabled. However SLI is working.

I am confused, I thought the profile needs to be active for said program support of SLI!

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The reason why you do not see any artifacts is that the nVidia SLI profile for P3D2 is disabled. However SLI is working.

 

Will have to give this a try - didn't know it was possible to run SLI without the P3D profile.  At the moment I've got SLI disabled (personal reasons - big user of Henrik Nielsen's AI ships and I don't want to do without my wakes) but if I can run SLI without screwing up the effects, I'm game.  Might be able to test drive later today - if so I'll report back.

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Hi

Me too, I have problems with the SLI mode, I have strange LINES and  sometime visual artefact's with 353.06 or 352.86

 

 

 

strangelinesx1uzy.jpg

 

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The reason why you do not see any artifacts is that the nVidia SLI profile for P3D2 is disabled. However SLI is working.

That screencap is from the 347.88 drivers which did not have an NVidia profile. If I made a few changes, I would get the artifacts - with these settings I do not.

 

Using the 353 drivers WITH the P3D profile enabled by itself, I get the artifacts - but making the addl changes to the profile prevents the artifacts WITH the profile enabled.

 

Vic

 

edit: Just to clarify here - I did not DISABLE the P3D profile - the screencap was from the 347.88 driver which did NOT have a p3d profile. With the 353 drivers, I load the P3D profile and then change the settings leaving the profile ENABLED.

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Vic - a quick question.  Is it necessary to make changes "by hand" in the NVI P3D profile after importing your version?  If so, what changes?  So far, I've downloaded yours and imported it, and changed CP and P3D settings to match yours, but haven't altered anything in NVI after importing your profile.  Performance is phenomenally good - best I've seen in P3D - but on my system the full range of artifacts is still there - drug-hallucination lighting, vertical boat wakes. A2A nav lights waiting for me in my parking spot, the works.  Does this come down to system differences, or have I missed a step?  Happy to experiment further - I'd really love to be able to capture this level of performance, but ideally without the weirdness.  Let me know.  Thanks!

 

EDIT: I reviewed the profile I installed against your screenshots and can''t find any differences between them.  There are a few P3D-specific references in the "undefined" section at the end, but I don't know what they govern.  But apart from that, my settings match yours.  Wish I knew why you're artifact-free when I've still got them, but am guessing it's just one of those P3D or FSX things - as in, "your mileage may vary."  

 

IIRC, Henrik's ships had the vertical wake problem in P3D 1.4, and he provided an alternate set of wake effects files.  I might install those and see if they help.  If I do, I'll post the results.

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Alan - I need to post a new screenshot. This one does not show the P3D profile as I was using 347.88.

 

Install 353 drivers

 

Set the NVidia control panel to enable SLI

 

Go into NVI and reset the P3D profile to defaults - this will set the new P3D profile for the driver

 

NOW adjust the aa, etc to ADD my settings - leave the upper SLI section alone. Notice that I change the two default settings in the lower SLI section - I manually define TWO cards rather than auto and I set SLI AA to ENABLE.

 

Those two PLUS the 8xcsaa setting seem to affect my artifacts. Especially csaa - if I change that, artifacts are back.

 

What I do to check - I have a specific aircraft (Milviz 310 FSX version) that will have it's light flashing erratically when I get artifiacts - I adjusted settings until I can turn them on/off.

 

As far as GPU usage - really depends on area and weather. Heavy clouds, low vis and rain will get it up to 99% on both but my system generally stays around 50/50.

 

HTH,

 

Vic

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Thanks - tried that, but no joy so far - still the full range of artifacts.

 

I tried resetting SLI AA to DISABLE, but no luck.

 

I'll try experimenting with the other settings, in particular AA.  Might have a chance later.

 

Frustrating to track this down but I appreciate the guidance.

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Vic,

 

It seems that you've found the solution to the lightning artifact problem within SLI, at least on my twin 780 system. Been testing for the last two hours in the worst ASN live thunderstorm weather that I could find. No artifacts and well defined REX lightning bolts.  Absolutely beautiful...

 

 I think the real key was "Go into NVI and reset the P3D profile to defaults - this will set the new P3D profile for the driver" before entering the AA and other settings.

 

  Many thanks,

Robert

 

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I think the real key was "Go into NVI and reset the P3D profile to defaults - this will set the new P3D profile for the driver" before entering the AA and other settings.

 

Glad to hear this is working for some - wish I knew what I need to change on my system.

 

Two questions...

 

1. What should the line for the P3D profile look like after resetting NVI to defaults.  I did the reset but am wondering if the profile "took." 

 

EDIT: 1a. What's the mechanism for resetting the NVI P3D profile to default?  Is it as simple as clicking "apply defaults" within the NVI P3D profile (which is what I did), or should I be applying global defaults somehow (if those are, in fact, different).  Sorry to be so obtuse - I usually have no problem with these tweaks, and maybe it's just that my system doesn't like the current drivers, but I want to make sure I'm not missing any steps.

 

2. What should CP settings be?  I wonder if there's something in my CP that's interfering with the NI settings.

 

Thanks in advance!

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6b6275a19f.pnga3bc9b8d78.png4da0a665ab.pnga2b2724810.png

 

Top is rest of setttinmgs

Bottom is default SLI compatibility bits



To reset to default - select the Prepar3D profile in the profiles bar

the third icon to the right looks like a green tag - click it to Restorte Profile to NVidia Defaults"

That will do it.

 

 

My images are out of order but you should be able to figure it out. Top two are Nvidia control panel p3d settings. Next two are the Nvidia Inspector showing the default SLI compatibility bits along with the changes I made.

 

Good luck!

 

Vic
 

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Thanks - those look close to what I had but I think there were some small differences (not looking at the settings now, so can't be sure).  I'll try them tomorrow or Thursday.  Tonight's experiments failed - I tried a whole series of antialiasing settings in NVI but couldn't get rid of the artifacts.  Eventually dropped SLI from P3D and went for a flight just to enjoy it without the whole lucy-in-the-sky-with-diamonds experience. The good news is that your P3D settings are terrific, even on a single 980 - better in several respects than what I'd been using and the performance is quite smooth (though not as smooth as SLI).  So thanks for that.  More to follow on the SLI frontier...

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8x sparse grid supersampling?

With overcast of ASN what happens? 1 FPS?

Generally around 20, I don't really check as long as it's smooth - I switch to 4sgss most of the time though especially if in really bad weather around a major area like JFK, etc.

 

Also, the sgss setting seems to have no effect of the artifacts.

 

Vic

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Sorry to say I've had no luck with these settings - I get the complete range of artifacts.  Tweaking them doesn't seem to help either.  So I think I'll bow out until P3D and/or NVidia can come up with a fix.  Again, I'm getting good results with the P3D.cfg settings on my single card, so I've gained something in the process.  So thanks, and I'll see you guys later in the SLI evolution.

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Hi folks,

 

i tried the whole thing again. I just added the 8xCSAA and actually it is working well. I stayed at 4xSGSS as it gives me a good overall visual vs performance on wide variety of airplanes and sceneries.

 

Besides the fact that the effects are working with these settings is the question why with 8xCSAA. 

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