Aircrafts dead because of older CPU and AVX issues?

Bug Reporting Hub Hardware & Peripherals
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Are you using Developer Mode or made changes in it?

no
Have you disabled/removed all your mods and addons?

yes

Brief description of the issue:

Aircraft dead because of older CPU and AVX issues?
Please see this thread
ATR Cockpit/EFB always dark - #41 by scork661

Provide Screenshot(s)/video(s) of the issue encountered:

Detailed steps to reproduce the issue encountered:

PC specs and/or peripheral set up if relevant:

For me… its Intel Core i7-6700 Specs | TechPowerUp CPU Database
Intel® Core™ i7-6700 (up to 4.0GHz, 8MB cache) Quadcore HT

ASUS B150M-A

PSU Corsair VS 550

Windows 10 Pro 64-bit

32GB RAM → Corsair Vengeance 16GB DDR4-3000 RAM

3TB Seagate Barracuda (7200rpm, 6GB/s)

Samsung SSD 850 EVO 250 G SCSI

1.8 TB Seagate Barracuda ST2000DM001-1CH164

Silent CPU upgrade Silent CPU upgrade (Be Quiet Pure CPU cooler

MSI Geforce RTX 2070 super

Build Version # when you first started experiencing this issue:

SU 11 February The Fenix A320 went dark and the FBW A320 couldn’t power on…
Now the planes don’t work.. all seem to have issues..
Concorde fuel transfer dont work, Bae 146 APU fuel not working, PMDG 737’s freezing sim, Maddog X no EFB, Headwind SU100 and A339 cant power on.

ATR was also dark, then I empty community folder and it works… I have payware scenery, aircraft and airports and 2 or 3 freeware airports, and scenery. but more it does not work. .. I try all sort of combination’s. And I find some things strange..
Why on flightsim.to the thing about combability verifications is practically not done just know… What does that mean? No use to do it, or chaos all are waiting for an SU12 extra update or the avionics pack are making issues an need the update.. Many seem to having issues but the problems show their face in different ways…

But are issues with aircraft systems an AVX thing?

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Do you have the same issue if you follow the OP’s steps to reproduce it?

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If relevant, provide additional screenshots/video:

2

The CPU you quote supports AVX, including AVX2, so no that is definitely not your issue.

AVX refers to several families of newer instructions to optimize certain kinds of arithmetic by running multiple operations in parallel on wider data registers. Some software requires newer CPUs requiring them and will crash instantly if run on an older CPU. Other software uses the faster instructions only when available for certain optimized tasks.

There should be no difference other than the speed of data calculations between a CPU with AVX and a CPU without AVX, or supporting only older versions of the AVX instructions. When MSFS came out in 2020 I tried it on an old 2009 Xeon E5520 which didn’t have AVX at all; everything worked fine but it was much too slow and I had to upgrade my old CPU to get acceptable performance.

I doubt that if you’re having a problem with enabling avionics that it’s related to AVX: for one thing you have AVX, and for another it’s unlikely for such a problem to exist unless there’s a very weird bug in the non-AVX code path.

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3

Well, in theory it might be avx issue, because the wasm module may crash silently and not sure how the sim handles that. I have seen people who dont have AVX support on their CPU tend to not be able to use the WASM aircraft like A310, AN225, ATR and believe it or not, the Volocopter. I have had black unusable displays on ATR on a few flight starts and had to restart the entire sim to fix that, but I suspect those were because of wasm module crash due to some other issue, not related to AVX since I am on Zen3. But yes that skylake processor that the OP has should have AVX2 support so it’s unlikely to be AVX related.

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