[Regression] 1.6.3.0 FSR3 broken: severe screen flickering makes it unusable

Sim Update 4 Beta | MSFS 2024 Install, Performance & Graphics
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I encountered a rendering issue in the SU4 beta version. It keeps flickering non-stop.I’ve compressed the video so that it can be uploaded directly.

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You should report this as a bug so that other can try to repro and vote, here:

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Is this with FSR3? Please mention such infos in your bug report.

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I have the same with FSR3 on.

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ISSUE DESCRIPTION

Description of the issue:

FSR3 has been working without issue until 1.6.3.0 but now extreme screen flashing makes it unusable. The screen flashing begins once the opening video has finished and the main menu appears. It remains after that and is so severe it could cause issues to folk with epilepsy.

No driver changes/config changes have been made to my system simply upgraded to 1.6.3.0

FREQUENCY OF ISSUE

How often does this occur for you (Example: Just once, every time on sim load, intermittently)?

Always.

REPRODUCTION STEPS

Please list clear steps you took in order to help our test team reproduce the same issue:

  1. Have FSR3 selected in sim options

  2. Start sim

  3. Observe severe screen flickering

YOUR SETTINGS

If the issue still occurs with no mods and add-ons, please continue to report your issue. If not, please move this post to the User Support Hub.

What peripherals are you using:

[PC Only] Are you using Developer Mode or have you made any changes to it?

No

[PC Only] What GPU (Graphics Card) do you use?

RTX5090

[PC Only] What other relevant PC specs can you share?

9800X3D/32Gb/500mbps

MEDIA

Please add a screenshot or video of the issue occurring.

See here for video: Flickering in su4 - Sim Update 4 Beta | MSFS 2024 / SU4 Beta Discussion - Microsoft Flight Simulator Forums

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Same for me. Unplayable for me without framegen

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MSI X870E Carbon WIFI (rbar enabled), Ryzen 7 9800X3D, RTX 4090 Gaming OC (drivers 566.36), 64GB DDR5 6000 CL26.

Out of curiosity, I checked if I have the screen flickering bug after enabling FSR3. I tested with HAGS off and HAGS on, and in both cases I don’t have any screen flickering.

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Since you have an NVIDIA graphics card, I’m wondering why you’re using FSR3 instead of NVIDIA DLSS in the game settings?

EDIT

I forced the bug on my setup – screen flickering occurs when FSR3 is enabled and NVIDIA DLSS is selected in the Anti-aliasing settings.

WORKAROUND: instead of NVIDIA DLSS, choose AMD FSR3 for Anti-a liasing as shown in the screenshot I added before editing.

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I found the cause of this. If you are using DLSS for anti aliasing and FSR3 for FrameGen then it flickers. Switch the anti aliasing to AMD FSR 3 also and the flickering stops. Or use TAA

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Can confirm, also have this with an 5800x3d, 4070 Super and 32 gb RAM. Changing to DLSS and reswitching it to FSR don’t fix it.

I tried using DLSS Swapper to see if it was a version issue, didn’t seems to be with the v3.1.4 because it’s still happening.

I noticed that when using TAA and AMD FrameGen that it doesn’t seems to appear

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Since you have an NVIDIA graphics card, I’m wondering why you’re using FSR3 instead of Frame Generation - NVIDIA DLSS, and NVIDIA DLSS in the game settings (anti-aliasing)?

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Because I like testing things :sweat_smile:

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Might have an older card and using the framegen mod

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Nope mate :wink:

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Please clarify. I have a 3090 Ti and unless something changed with SU4 Beta, DLSS Frame Gen is not supported on that GPU. That would be a neat trick.

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Happens for me too, fixed by resorting to TAA which is a shame as I get flickering on some objects with that. Using latest 581.15 Nvidia and an RTX3060 laptop

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ISSUE DESCRIPTION

Description of the issue:

Continuing the discussion of the FSR3 that have severe flickering, I noticed that the NVIDIA FrameGen have also some kind of flickering, but in a lot less extent than the FSR one, and it’s doesn’t seems to be everytime I launch the sim.

It doesn’t seems that the traditionnal ALT + ENTER workaround I use on 2020 fixes the flickering (I think it was since SU3 that workaround don’t work anymore)

FREQUENCY OF ISSUE

How often does this occur for you (Example: Just once, every time on sim load, intermittently)?

Intermittently. According to my testings, it is happening once in three time on the main menu and on the world map.

REPRODUCTION STEPS

Please list clear steps you took in order to help our test team reproduce the same issue:

  1. After launch, if Frame gen was not selected first (like when the sim is just reinstalled with a new userCfg file) switch to NVDIA DLSS frame gen.

  2. Load the map by selecting the airport and let it load and download the data it needs (I think this is very important to give the sim some times to download, otherwise one could confuse the stutters due to these downloads

  3. If you are unlucky, you will see some kind of flickering after move somewhere with the mouse.

YOUR SETTINGS

If the issue still occurs with no mods and add-ons, please continue to report your issue. If not, please move this post to the User Support Hub.

Only Inibuilds heathrow is in the Community folder, because it’s my heavy-airport test

What peripherals are you using:

Joystick : Logitech Extreme 3D Pro

Throttle : Thrustmaster TWCS Throttle

[PC Only] Are you using Developer Mode or have you made any changes to it?

Only enabled to show the Display FPS graph

[PC Only] What GPU (Graphics Card) do you use?

RTX 4070 Super, 32 GB RAM and 5800X3D CPU. 1440p resolution

[PC Only] What other relevant PC specs can you share?

Windows 10 22H2, build 19045.6282. FS 2024 was clean installed, including everything on the Roaming msfs 2024 folder (because it was not installed for a few weeks)

MEDIA

Video when the FrameGen flickering is happening :

When the issue is not happening :

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I have a 5090 and use AMD FSR frame generation because it works on my triple screens whereas nvidia FG only adds the extra frames on the main monitor.

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Thank you so much for the clarification. I really appreciate the info - it might come in handy for me in the near future. I truly appreciate it.

EDIT

By default, NVIDIA DLSS Frame Generation shouldn’t work on your GPU - nothing has changed there. MSFS 2024 won’t magically add support for your GPU - that’s up to NVIDIA. So if you’re currently playing with FSR3 and also set it as your anti-aliasing or TAA, there’s nothing to worry about - it works without flickering, at least on my RTX 4090 (566.36).

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Another video showing the issue more clearly than the link to the video I placed in my first post.

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That’s what I thought.