i9 10850K OC5.0Ghz
RX6800XT (stock or 2600Mhz)
64GB 3200Mhz RAM
500GB SSD for Windows 10 20H2
1TB Samsung 970 EVO M.2
Corsair HX1000 Platinum
HP Reverb G2
I’ve had constant CTD (every flight) in VR since the release of sim update II. The typical crash event is either d3d11.dll or vcruntime140.dll. I’ve done everything suggested here and other forums with no avail. Reinstalled windows fresh twice, reinstalled the sim three times, tried all the known drivers, registry tricks, page file, ram swap, etc. Then a couple days ago, I tried the render scale @ 70% in sim and in OpenXR. No crash. This led me to believe that the CTDs I’ve been having is related to the load or power issue. I looked at the power draw of G2 from my GPU and realized that it was drawing nearly 77W even idling. My GPU is capped at 300W by bios, and this meant I’d only have 230W to work with.
I downloaded More Power Tool and just changed the GPU power limit to 320W and TDP limit to 340W. These two modifications lowered the junction temp by 10c, all my stutter, mid game long pauses, then eventual CTD were all gone. I’ve done 3 2hr flight with 100% in OpenXR, 100% in sim and was getting rock steady 35fps from KSLC to KASE without any crash.
The cause of the crash:
My unscientific conclusion is that AMD driver-capped power limit is insufficient for Reverb G2+MSFS2020 with high graphics settings. This explains why when the sim is limited by the main thread, it will never crash.
This may not fix all CTDs, but if you have AMD GPU, especially the 6000 series, give more power tool a try. Even if you are not having CTDs, just increasing the power limit to a reasonable 320/340 will give a big boost in stability and thermal performance.
Update: the CTDs are back. Moving the USB port for G2 to external hub lessened the frequency, but it still crashes.