v3.4.18 SLI major issue

Any issues, problems or troubleshooting topics related to the Prepar3D client application.
Adam Breed
Lockheed Martin
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Joined: Mon Sep 20, 2010 6:17 pm

Re: v3.4.18 SLI major issue

Postby Adam Breed » Tue Jan 10, 2017 12:54 pm


Thanks for the feedback. We have been working with NVIDIA on SLI issues and believe it is a combination of an Prepar3D application side and NVIDIA driver side. We will provide more updates as soon as possible.

Prepar3D® Engineering Project Manager

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Joined: Mon Oct 10, 2011 12:04 pm

Re: v3.4.18 SLI major issue

Postby supersym » Tue Jan 10, 2017 1:06 pm

Thansks a lot for all your work =)

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Joined: Sat Sep 29, 2012 12:42 pm
Location: France

Re: v3.4.18 SLI major issue

Postby cyclope78 » Tue Jan 10, 2017 1:45 pm

That is a great news :)

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Beau Hollis
Lockheed Martin
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Re: v3.4.18 SLI major issue

Postby Beau Hollis » Wed Jan 11, 2017 9:30 pm

Hello all,

Thank you all for you reports and for being patient with us as we work resolve these issues. I have been personally working with NVIDIA on this, and am happy to report that great progress is being made. We've found and fixed the performance and UI flicking introduced in HF2. Thanks to Nvidia's help, we believe that we can also resolve the visual effects flicking issue in our application code. We understand that specific driver versions may conflict with other applications, so we plan to fix this in-app, if possible, to give our users more flexibility.

EDIT: We also resolved a related SLI issue in HF2 where p3d might hang at 100% during loading. All these issues are specific to alternate frame rendering (AFR). Overriding application settings to use another SLI mode such as SLI AA is one way users have been able to work around these issues without completely disabling SLI. More details on that can be found in another thread. viewtopic.php?f=6312&t=122959

Beau Hollis
Prepar3D Rendering System Lead

Posts: 565
Joined: Fri Oct 15, 2010 8:38 pm

Re: v3.4.18 SLI major issue

Postby vgbaron » Wed Jan 11, 2017 10:44 pm

Not only do we appreciate the fact that LM listens to our issues, probably the most important fact is that you communicate when there is something to be said.



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