February 2, 20233 yr Hello all, I wanted to share my findings with you all like i did with Microsoft to see if there are others experiencing these issues and if anybody knows of a workaround. I am using a 4090 with frame generation and prior to this Aircraft & Avionics update i had the sim running incredibly smooth. I have a 60hz 4k monitor and all i needed to do was enable Vsync in the Nvidia Control Panel and turn off Vsync in the sim and this, for me was the best combination of settings for great performance. There was some noticeable latency with this but i understood this. I installed the prompted update yesterday and started the sim and loaded in as i normally would. Instead this time when i would pan around it was not smooth at all, and it would stutter a lot. It was as though i had maxed out my settings and turned off frame generation. I did some troubleshooting and it seems there is somewhat a way around this by capping fps to monitor rate in nvidia control panel. However, during a flight performance would gradually become poor. The only way to gain this back would be by strangely going into the sim settings and turning on vsync and then turning it back off to allow nvidia control panel vsync to do its job. I find this all very strange how this update could cause this. It is like the nvidia control panel vsync setting no longer has ANY affect on the sim. I say this because the latency i was having is literally not there any more. With frame generation enabled along with vsync i understand from nvidia that there will be latency. I have been trying to work out what has happened but for me that is the only thing with all of the symptoms that i can come up with, vsync doesn't work in the sim if using it with nvidia control panel since this update. It would be great if anyone else using frame generation would give any input if they have noticed any of this. I have raised this with MS and Asobo but i wanted to share here too in case there was something i was missing and there was a work around before its addressed. I am aware that there is a known bug with Discord at the moment but this is not affecting my situation as i am doing all of this with Discord not running. Many thanks all, Michael EDIT: I should note that during the flight when the performance gradually reduces, If i click my second monitor and then click back into the sim it also returns performance to normal. So going into settings and turning vsync on / off is not needed. So strange..... Edited February 2, 20233 yr by Mejjo
February 2, 20233 yr I don't have the hardware to test your scenario directly. But I can report that, at various stages in the development of MSFS, I've been able to fix problems by toggling an option off and then on again. I do realize this makes no sense. Processor: Intel i9-13900KF 5.8GHz 24-Core, Graphics Processor: Nvidia RTX 4090 24GB GDDR6, System Memory: 64GB High Performance DDR5 SDRAM 5600MHz, Operating System: Windows 11 Home Edition, Motherboard: Gigabyte Z790 Aorus Elite AX, LGA 1700, CPU Cooling: Corsair H100i Elite 240mm Liquid Cooling, RGB and LCD Display, Chassis Fans: Corsair Low Decibel, Addressable RGB Fans, Power Supply: Corsair HX1000i Fully Modular Ultra-Low-Noise Platinum ATX 1000 Watt, Primary Storage: 2TB Samsung Gen 4 NVMe SSD, Secondary Storage: 1TB Samsung Gen 4 NVMe SSD, VR Headset: Meta Quest 2, Primary Display: SONY 4K Bravia 75-inch, 2nd Display: SONY 4K Bravia 43-inch, 3rd Display: Vizio 28-inch, 1920x1080. Controller: Xbox Controller attached to PC via USB.
February 2, 20233 yr I reported this during the beta test but it remained in the released AAU1 version. Sounds similar to your issue? There are a few folk with the same symptoms https://forums.flightsimulator.com/t/regression-dlss3-frame-generation-with-vsync-broken-in-1-30-9/568809/39 P. S. If this is your issue please vote in that thread Edited February 2, 20233 yr by boez
February 2, 20233 yr Same here… Stutter party… That’s why I wish there was a way to ignore an update and wait some time before updating MSI Tomahawk Z790, I7-13700K, DDR5 6000mhz, MSI 4090, 3x SSD 980 PRO, Corsair 360 Liguid CPU cooler, Corsair H1200V2 power.
February 2, 20233 yr Author 5 minutes ago, altenae said: Same here… Stutter party… That’s why I wish there was a way to ignore an update and wait some time before updating Glad i'm not the only one, Wish i could roll back and skip it. Having to do all these things to regain the performance is incredibly frustrating.
February 2, 20233 yr Your votes on that linked thread are important. The mod who moved the thread out of the beta subforum when it ended mentioned they did that so they can assess its importance and number of users affected... Edited February 2, 20233 yr by boez
February 2, 20233 yr Author 38 minutes ago, boez said: Your votes on that linked thread are important. The mod who moved the thread out of the beta subforum when it ended mentioned they did that so they can assess its importance and number of users affected... I made sure to vote on that. Sim is usable still but by no means enjoyable at the moment.
February 2, 20233 yr What’s the big deal with letting the sim handle vsync? For me with TrackIR on a 3090 card, the in-sim sync works a lot smoother than through NCP. Eric
February 2, 20233 yr 3 hours ago, Mejjo said: Glad i'm not the only one, Wish i could roll back and skip it. Yeah. It’s such a shame that you have to update. I would happily pay a lot of money to go back to SU4.
February 2, 20233 yr Author 16 minutes ago, B777ER said: What’s the big deal with letting the sim handle vsync? For me with TrackIR on a 3090 card, the in-sim sync works a lot smoother than through NCP. I think the big part here is vsync is broken with dlss3 and they have acknowledged reports from users. I’m purely seeking others who are in the same situation that may know / hear of a work-around 🙂
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