Just saw this video https://youtu.be/m7RUFUFYdAU?si=vaSmToZiJBbMXtME and man I’ve been using it wrong this whole time, Valve should’ve addressed this somewhere! Or maybe I’ve missed it.
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a lot of the confusion is because the system level FSR is more like the AMD software feature RSR but im pretty sure only radeon products get acces to it so valve couldnt call it that.
Another way to setup FSR is to change game resolution on steam properties, this will force the game to run at that resolution whatever it uses (fullscreen or windowed). When FSR is enabled steam deck will scale game from the configured rework to the display, in this case is to 800p. This is better because it works with every game, the video method does not work with some games that run « scaled to fullscreen » all the time
What happens if you’re using the in game FSR and have FSR enabled in the QAM?
If you have the game resolution set to below 720p and you enable both then you’ll be using the in-game FSR first, and then FSR-ing that up to 720p/800p.
Example:
You set the game to 960x540. You enable FSR in the game’s settings, and set it to Ultra Quality. You also enable FSR in the Deck settings. Here’s what happens:
First, the game is rendered at 739x415.
Then, it uses the in-game FSR to upscale it to 960x540.
Now, the Deck, receiving a 960x540 frame from the game, which is below native, runs that through its own FSR implementation, upscaling it to the native resolution of the Deck (or attached display), so 1280x720 for 16:9.It will likely look terrible if you do this, but it’s entirely possible :D
This absolutely explains why BG3 looks like stained glass. Thank you for explaining it in such a eloquent and succinct way
Ideally you only want to use game FSR if it has it. It’s usually FSR2, which is better than the FSR1 used by the quick access menu on the Deck
Combining multiple passes of it will almost always make it look worse than just lowering the in-game quality slider
FSRception.