GPUOpen-Effects / FidelityFX-FSR

FidelityFX Super Resolution
MIT License
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Strange noise #9

Closed opinali closed 3 years ago

opinali commented 3 years ago

When I execute the FSRSample in my system (AMD RX 6800 XT Midnight Black), I hear a high-pitch noise apparently coming from the GPU. The noise changes as I rotate the scene or change options. I doesn't seem caused by fans, this doesn't happen running any game or other GPU-intensive program, including the Radeon app's GPU Stress Test. I am not crazy :) I can share a video that will show this behavior if necessary, the noise is low but very noticeable.

Zorerk commented 3 years ago

Hello opinali

What you describe sounds very much like Coil whine and is not directly caused by the software but issues with the hardware. You can see an example of this on the following video: https://www.youtube.com/watch?v=HP73edpQwgc

Taxxor90 commented 3 years ago

On my 6800XT I'm getting like 1000+ FPS depending on the FSR mode, so it wouldn't be unusual if many GPUs start to have coil whine at these framerates. Notice coil whine is not so much dependend on the type of load but mostly on the FPS you're getting. You could play a very demanding game at 100fps and hear nothing, or you could be in the main menu of a game with uncapped FPS reaching 2-3000 without much load on the GPU and hear it

opinali commented 3 years ago

Thanks, this is exactly my problem, same noise. I guess the problem is that the demo code doesn't have any FPS capping? This looks dangerous, considering recent rumor about a prerelease game that's bricking some NVidia GPUs in similar circumstances (game running uncapped at thousands of fps in places like the menu).

Taxxor90 commented 3 years ago

It has, you can turn on VSync at the bottom of the settings.

opinali commented 3 years ago

Uh that's true, had to scroll down to get the VSync option. I panicked with the noise before trying that. :) as a suggestion, perhaps VSync=on should be the default.