qualio

Just had another one of the “stutter sessions”. Pretty much the same thing, 1.5 hours into the flight. One denominator so far with all those flights is that it’s a PMDG aircraft, 747 or the 777 that I’m having the issues with. Haven’t had it yet with the FSLabs.

Installed the new update and have to say HiFi did well. Using it with EA and volumetric clouds and the visibility is great. Distance set at 199 and it goes all the way to the horizon, depending on conditions looks like 199 with a nice distant haze. @mobiel Did you also install the connector after the installation and first start of Active Sky?

Envshade received an update and is 5.3 ready

I followed your instructions Rob. In addition to those I disabled the full screen optimization for Prepar3D as well. The DDU process went very well, in safe mode without internet access. I'm almost 2 hours into my flight, with the studio driver 472.84, same complex add-on, PMDG 777 without any issues. Reading about possible connections to SSDs I want to mention that the simulator is actually on an HDD in my case. Still have about 2 hours of flight ahead of me and will be doing more flights. All my previous flights, since I installed 5.3 were around the 1 hour to 2 hour mark. I only noticed it first when I did my 9.5 hour long haul flight, and the following 4.5 hour flight.

Tried pretty much the exact same things as described above. Thought it might be ASP3D at some point too, sim settings, tried the OBX file from 5.2 that’s about 8MB instead of 900+MB, all without success. Judging by the amount of threads and topics regarding that issue, even on the Prepar3D own forum, it has to be a software issue with Prepar3D.

Sorry for spamming the thread. Just landed after a micro-stutter fest landing, doable but bad but not as bad as last night with 2-5 fps. Now since I’m on the ground, the stutters are gone, it’s smooth now again. I’m baffled by what’s going on there.

About 3.5 hours into my flight and micro stutters are occurring. It’s acceptable but very noticeable. I’ll just have to test more and want to disable the full screen optimization option for P3D for my next flight. The frames are at a steady 55 to 70 in the cruise. I wonder if there’s some kind of overload happening since it’s been fine for first 1.5 to 2.5 hours, which ran smoothly without a single stutter or freeze. Even emptied the standby memory.

Could you @Sesquashtoo elaborate a little what scenery conflicts you had and how you sorted them out, please? Just want to see if that my apply to myself as well.

I’m a strong believer that P3D has a future since it’s still in active development. I’ve seen comments about P3D compared to FSX and that it’s a natural path of evolution of simulators. New comes out, old dies, we all move on. FSX wasn’t developed anymore as many previous versions from Microsoft, that was just the model back then. P3D is different. If LM stops development then I’d say that P3D doesn’t have a future. I tried MSFS and really want to like it to the point to be the main sim but it’s just not there. And it shows, to me at least, that gorgeous graphics, and even satellite imagery isn’t enough for me to move over. The update policy, stability and lack of high-fidelity modern airliners outweighs the positives of the sim for me.

When I installed P3D 5.3, I did a complete fresh install, including Windows 11. Always do that with major releases of the sim. Currently using the NVIDIA 497.09 driver. Followed Rob’s tip and deactivated the GPU scheduling in Windows settings and am performing another flight right now at about 4.5 hour length. Haven’t had issues on flights 1-2 hours long since the release. Happened for the first time yesterday at the 7.5 hour mark on my 9 hour flight. The interesting thing was the computer pretty much went idle, fans slowed down and the temperatures went down. The GPU was at about 60 degrees, utilization was at about 25 percent. It’s like the system shifted the focus or “dropped” P3D. I haven’t adjusted or touched anything in the P3D.cfg. In the task manager all cores were assigned to P3D. I’ve had the 20 second freezes before but didn’t think much of it since I’ve read about it and thought a fix would be released for that eventually or an updated graphics driver.

I checked and I have the latest NVIDIA already installed. I'll deactivate the GPU scheduler after I finish my flight and will do some tests.

Thank you for the tips Rob, I'll try those and see if it yields any improvement. It's the first time it happend, all my flight had been around the 2-hour mark so far.

Been performing a long haul flight for the last 8 hours and in the last 30 minutes my FPS dipped to single digits. There's plenty of room left for CPU and GPU and the weird thing is, the computer fans got quieter, the GPU temperature is around 60 degree. Something is way defineltly off. It's been totally fine for about 7.5 hours and now it''s literally a slide show