3.5.5 external display limited to 15 fps only when enabling FSR

[Fred is hungry]

I use my steam deck on the stable branch. Today I installed the update 3.5.5 and also updated my official steam deck dock after the update of the steam deck. I have a non VRR 4k TV connected to the steam deck dock.

Enabling FSR and getting 60 fps on this setup worked just fine until yesterday, before updating my steam deck and steam deck dock.

Games that run with 60 fps are limited a to static 15 fps whenever I enable FSR. When I disable FSR, it goes back to 60 fps. GPU and CPU usage are low when enabling FSR. Some games run also with a reduced in game speed when enabling FSR, which is weird.

The issue persists, no matter if I enable or disable HDR.

[Biggie]

Yeah I have this issue too. :( Though it seemed to be a 20fps cap on my system, problem exist across multiple games.

[StealFromWork]

Just started having this issue out of nowhere as well. Switched from the Beta channel to Stable and it’s happening on both.

[ハゼト]

Same problem here, I connect the official dock and the games drops to 15-20 fps

[SilvertongueRED]

Hi there also have the same issue and only get 60fps once forcing my steam deck display settings (for overall system) to not auto-set resolution and manually toggling it back to 1080p (I also have a non VRR 4K TV). 4K display and on some games worked fine till latest dock firmware update (on current Steam OS 3.5.7). Without manually toggling display resolution back to 1080p, even games where I individually toggle down to 1080 still cap fps at 15. Also, FSR is enabled and doesn’t have an effect on my frames it’s just the overall display resolution it seems…
Hope we get an update soon cause this ♥♥♥♥♥♥ up my system and also seems to affect controller connectivity cause the lag’s ridiculous and has made it difficult to connect new controllers to my SD. Annnnd steam does all this right before I bring my steam deck over to 2different friend’s places to show “how cool this pc/switch hybrid is.” :P

[Kakarott]

(Nice, was hoping to find a post about it here.)
I have, of course, the same problem. Steam Deck + Steam Deck Dock + 4K TV.
Linear Scaling seems to do fine and doesn't give a performance hit.
But Nearest Scaling already does.
And FSR Scaling is even worse.

From 1280x800 to 3840x2160 Integer (Risk Of Rain 2):
Unlimited Frames:
- Linear 79 FPS
- Nearest 60 FPS
- FSR 54 FPS with fluctuating frame time
Frames limited to 60:
- Linear 60 FPS
- Neareset 39 FPS
- FSR 30 FPS

Other Game (Broforce - can run easily in 4K) 720p, unlimited FPS:
- Linear 490 FPS
- Nearest 185 FPS
- FSR 46 FPS

When limiting FPS to 60, I also see spikes in GPU usage from 20% to 50% for FSR

[SilvertongueRED]

Originally posted by Kakarott:

(Nice, was hoping to find a post about it here.)
I have, of course, the same problem. Steam Deck + Steam Deck Dock + 4K TV.
Linear Scaling seems to do fine and doesn't give a performance hit.
But Nearest Scaling already does.
And FSR Scaling is even worse.

From 1280x800 to 3840x2160 Integer (Risk Of Rain 2):
Unlimited Frames:
- Linear 79 FPS
- Nearest 60 FPS
- FSR 54 FPS with fluctuating frame time
Frames limited to 60:
- Linear 60 FPS
- Neareset 39 FPS
- FSR 30 FPS

Other Game (Broforce - can run easily in 4K) 720p, unlimited FPS:
- Linear 490 FPS
- Nearest 185 FPS
- FSR 46 FPS

When limiting FPS to 60, I also see spikes in GPU usage from 20% to 50% for FSR

Hmm, have you noticed any difference in performance when going into your settings, then display section, and manually toggling the “automatically set resolution” off and changing the resolution of the display to 1080p? For me, the scaling (FSR) didn’t seem to effect the fps, but rather the overall display resolution (changing to 1080p instead of 4K) made the difference for me.

[Kakarott]

Originally posted by SilvertongueRED:

Hmm, have you noticed any difference in performance when going into your settings, then display section, and manually toggling the “automatically set resolution” off and changing the resolution of the display to 1080p? For me, the scaling (FSR) didn’t seem to effect the fps, but rather the overall display resolution (changing to 1080p instead of 4K) made the difference for me.

Haven't tried. But just directly switcht the game under its preferences to NATIVE and choose the resolution in game, basically bypassing the OS-level-upscaling.
But: upscaling on OS-level shouldn't be that terrible, not even up to 4K.

[rae]

Originally posted by Kakarott:

(Nice, was hoping to find a post about it here.)
I have, of course, the same problem. Steam Deck + Steam Deck Dock + 4K TV.
Linear Scaling seems to do fine and doesn't give a performance hit.
But Nearest Scaling already does.
And FSR Scaling is even worse.

From 1280x800 to 3840x2160 Integer (Risk Of Rain 2):
Unlimited Frames:
- Linear 79 FPS
- Nearest 60 FPS
- FSR 54 FPS with fluctuating frame time
Frames limited to 60:
- Linear 60 FPS
- Neareset 39 FPS
- FSR 30 FPS

Other Game (Broforce - can run easily in 4K) 720p, unlimited FPS:
- Linear 490 FPS
- Nearest 185 FPS
- FSR 46 FPS

When limiting FPS to 60, I also see spikes in GPU usage from 20% to 50% for FSR

Did you modify the VRAM from 2GB to 4GB in BIOS before? If you had, 3.5 update would revert VRAM settings back to 2GB. Fix should be simple: go back to BIOS and give VRAM 4GB again.

[SolomonAugust]

Got the same problem when docked. FSR worked fine before 3.5.5 but now it locks my frames to 15

[SilvertongueRED]

Originally posted by rae:

Originally posted by Kakarott:

(Nice, was hoping to find a post about it here.)
I have, of course, the same problem. Steam Deck + Steam Deck Dock + 4K TV.
Linear Scaling seems to do fine and doesn't give a performance hit.
But Nearest Scaling already does.
And FSR Scaling is even worse.

From 1280x800 to 3840x2160 Integer (Risk Of Rain 2):
Unlimited Frames:
- Linear 79 FPS
- Nearest 60 FPS
- FSR 54 FPS with fluctuating frame time
Frames limited to 60:
- Linear 60 FPS
- Neareset 39 FPS
- FSR 30 FPS

Other Game (Broforce - can run easily in 4K) 720p, unlimited FPS:
- Linear 490 FPS
- Nearest 185 FPS
- FSR 46 FPS

When limiting FPS to 60, I also see spikes in GPU usage from 20% to 50% for FSR

Did you modify the VRAM from 2GB to 4GB in BIOS before? If you had, 3.5 update would revert VRAM settings back to 2GB. Fix should be simple: go back to BIOS and give VRAM 4GB again.

Hi there, I use Cryo-utilities to change the VRAM and some other settings that that program changes and after making sure the VRAM was changed again to Cryo’s specifications rather than the stock steam deck ones, the problem of a lagging display input and loss of frames when making the steam deck output it’s OS to 4K remain :( my steam deck functions fine when I manually scale the display to 1080p…

[CheeseBoar]

Same issue here, system FSR locks every game to 15fps now on the latest stable OS version. I dock to a 4K TV, but I top out at 1080p when I'm playing something (usually previously opting for 720p with system FSR). I'll try the trick of manually setting the Deck's resolution to 1080p later; individually setting each game to native at launch and 1080p in game didn't work for me.

EDIT: Not only does changing the system resolution to 1080p work, but with FSR on, Yakuza Kiwami at 720p in game somehow looks *better* on my TV with the system at 1080p than it does at 4K.

[empty]

I am also experiencing the same issue. I did not have this issue before the 3.5 update either. the Nvidia scale also drastically decreases frames. I am using a third party dock outputting 4k via HDMI 2.0

[Laureon]

Same issue here. SD OLED + Valve Dock both at latest firmware.

[Jengabean]

This happens with my LCD launch day 64Gb steamdeck as well. Before the 3.5 update I used to use FSR with great effect and almost no performance penalty on games like Fallout 4 and others from the PS4/Xbox One generation. Now when I turn on FSR on much simpler/less demanding games like Gris (2d game in unity) and Dredge (very simple 3D graphics) I get super stuttery performance in the 15-20s. It's abysmal. FSR is unuseable now.

[NikoGenn]

Same here, still not fixed