DLSS not working properly

[Robbiee]

When it does work by updating the file from here https://www.techpowerup.com/download/nvidia-dlss-dll/

Game runs fine and smooth with 0 issues no stuttering no fps drops. However after a while and im sure im not doing anything to the game's files or whatever but DLSS stops working properly and my performance goes back to being ♥♥♥♥ and this mainly occurs in Novigrad. I know DLSS stops working as when i turn it off in the ingame settings my FPS doesn't change at all its still crap, turning it back on yields the same fps results.

Anyone run into similar issues? also im using a home theatre system with atmos support game ran absolutely fine with atmos but up until recently the audio just stopped working as well. I would get audio in the main menu and for the intro loading screens where dandelion is explaining the story but once game loads 0 audio...

I'm now re-downloading the game hoping this fixes the issues. I've also removed the file d3d11dx12.dll whatever you call it to have the overlay working. Is this correct way to get overlay working? Will also replace the dlss file with updated one through above URL as well once game is done installing.

EDIT: Have also deleted entire the witcher 3 documents folder, will report back once game is done downloading.

UPDATE: after reinstalling game + deleting the witcher 3 folder in documents the game started to work properly again with DLSS, no stuttering buttery smooth. However upon booting game up this morning there was a hotifx and for whatever reason that broke DLSS for me again.

I managed to fix it again by deleting the whole BIN folder > verify files on steam > replacing dlss file with new 2.5.0 one and now it seems to be working fine again.

[Orion Invictus]

What's your CPU temp? I have the same issue and discovered the CPU is overheating after some time.

[Robbiee]

Originally posted by Orion Invictus:

What's your CPU temp? I have the same issue and discovered the CPU is overheating after some time.

ehh.. will keep an eye on it i got a 5800x.

what temps are you getting with what cpu?

[Orion Invictus]

Originally posted by Robbiee:

Originally posted by Orion Invictus:

What's your CPU temp? I have the same issue and discovered the CPU is overheating after some time.

ehh.. will keep an eye on it i got a 5800x.

what temps are you getting with what cpu?

I have a 5600x, it's going over 90 ºC after an hour or so of continuous play.

[Robbiee]

Originally posted by Orion Invictus:

Originally posted by Robbiee:

ehh.. will keep an eye on it i got a 5800x.

what temps are you getting with what cpu?

I have a 5600x, it's going over 90 ºC after an hour or so of continuous play.

my cpu never gets that hot but yeah sounds like your issue is a heat one... i will monitor my temps anyway..

[n050up4u]

ive mentioned this in another post. Not sure if just a bug. But the "frame generation" option was grayed out until i enabled hardware accelerated gpu scaling in windows. But i suspect that's more related to dlss 3, which makes me wonder if other settings are broken since neither seemed to do anything for my frames.

[Orion Invictus]

Originally posted by Robbiee:

Originally posted by Orion Invictus:

I have a 5600x, it's going over 90 ºC after an hour or so of continuous play.

my cpu never gets that hot but yeah sounds like your issue is a heat one... i will monitor my temps anyway..

I mean, there are only so many things it could be. That it starts after some time indicates a continuous process, which is usually either a memory leak or overheating.

[Robbiee]

Originally posted by n050up4u:

ive mentioned this in another post. Not sure if just a bug. But the "frame generation" option was grayed out until i enabled hardware accelerated gpu scaling in windows. But i suspect that's more related to dlss 3, which makes me wonder if other settings are broken since neither seemed to do anything for my frames.

i think frame generation is only a 4000 series card thing... i got a 3080 ti

[Robbiee]

Originally posted by Orion Invictus:

Originally posted by Robbiee:

my cpu never gets that hot but yeah sounds like your issue is a heat one... i will monitor my temps anyway..

I mean, there are only so many things it could be. That it starts after some time indicates a continuous process, which is usually either a memory leak or overheating.

restarting game doesn't fix it unfortunately i gotta fiddle around with the files to get it to run smoothly again. I also deleted entire witcher 3 documents folder(backed up saves) maybe this will help. It had alot of random dx12 files in it.

[Snow-Drops]

DLSS can't give you more performance when the CPU can't keep up with the draw calls. Which is whats happening. Once I enter a village or something my FPS go down, and also my GPU usage, because the CPU becomes the bottleneck, DLSS can do nothing to increase your performance.

[Robbiee]

Originally posted by Snow-Drops:

DLSS can't give you more performance when the CPU can't keep up with the draw calls. Which is whats happening. Once I enter a village or something my FPS go down, and also my GPU usage, because the CPU becomes the bottleneck, DLSS can do nothing to increase your performance.

lol... except when dlss does work it does increase performance and it runs very very smooth. Exact same locations in the game as well. So you're pretty much just talking out of your ass. The game is pretty buggy and just needs to be fixed..

[Orion Invictus]

Originally posted by Snow-Drops:

DLSS can't give you more performance when the CPU can't keep up with the draw calls. Which is whats happening. Once I enter a village or something my FPS go down, and also my GPU usage, because the CPU becomes the bottleneck, DLSS can do nothing to increase your performance.

I thought DLSS was a hardware-based solution, with little to no CPU usage required. It's AMD's FSR that's software-based.

[Victor]

Originally posted by Orion Invictus:

Originally posted by Snow-Drops:

DLSS can't give you more performance when the CPU can't keep up with the draw calls. Which is whats happening. Once I enter a village or something my FPS go down, and also my GPU usage, because the CPU becomes the bottleneck, DLSS can do nothing to increase your performance.

I thought DLSS was a hardware-based solution, with little to no CPU usage required. It's AMD's FSR that's software-based.

Why wouldn't CPU be utilized with DLSS?

But he's right, the game does have a CPU bottleneck as the DX12 implementation is extremely poor/unoptimized.

Run any hardware monitoring software you have while in game and look at CPU thread utilization. It maxes out 1 or 2 at most while the rest remain virtually unused.

[Orion Invictus]

Originally posted by Victor:

Originally posted by Orion Invictus:

I thought DLSS was a hardware-based solution, with little to no CPU usage required. It's AMD's FSR that's software-based.

Why wouldn't CPU be utilized with DLSS?

But he's right, the game does have a CPU bottleneck as the DX12 implementation is extremely poor/unoptimized.

Run any hardware monitoring software you have while in game and look at CPU thread utilization. It maxes out 1 or 2 at most while the rest remain virtually unused.

Obviously it needs to use the CPU a bit, but not so much that it creates a bottleneck.

[Snow-Drops]

Originally posted by Orion Invictus:

Originally posted by Victor:

Why wouldn't CPU be utilized with DLSS?

But he's right, the game does have a CPU bottleneck as the DX12 implementation is extremely poor/unoptimized.

Run any hardware monitoring software you have while in game and look at CPU thread utilization. It maxes out 1 or 2 at most while the rest remain virtually unused.

Obviously it needs to use the CPU a bit, but not so much that it creates a bottleneck.

Not that it creates one, no, but it runs ontop of the bottleneck the game creates on its own. When that happens there is simply no perf. left on the CPU to handle the dlss requests fast enough to make a visible difference in fps anymore

[Orion Invictus]

Originally posted by Snow-Drops:

Originally posted by Orion Invictus:

Obviously it needs to use the CPU a bit, but not so much that it creates a bottleneck.

Not that it creates one, no, but it runs ontop of the bottleneck the game creates on its own. When that happens there is simply no perf. left on the CPU to handle the dlss requests fast enough to make a visible difference in fps anymore

But if that were the case, then FSR should have worse performance. I tried out both of them and got the same framerate.