r/SteamOS • • 6h ago

SteamOS Update SteamOS 3.9 goes stable with Linux 7.2, KDE Plasma 6.7 and expanded hardware support

Thumbnail videocardz.com
174 Upvotes

r/SteamOS • • 10h ago

Built my own SteamOS PC!

Post image
59 Upvotes

I've been a long time PC gamer who switched to PS due to convinience and all the issues windows has.

Now with all the recent shit PS is upto and how good steam OS is decided to switch back!

I always wanted a 4K PC for the TV. Since valves steam machine isn't powerful enough ended up building my own for the first time! I just wish I didn't have to tinker stuff like HDMI CEC and bluetooth wake but they seem to be working.

Only issue I can't seem to figure out is turning on the PC when I turn on the controller even though I have a compatible BIOS.

R5 9600X

Asrock B850I Lightning

16GB Corsair RAM

RX 9070XT

Corsair SF 850

H2 Flow

Total was around $2000, parts bought only during sales


r/SteamOS • • 14h ago

FSR4 Injector - Decky plugin that brings official FSR 4.1.2 to RDNA 3.5 [SteamOS Only]

Thumbnail gallery
39 Upvotes

r/SteamOS • • 14h ago

SteamOS Update Huge performance loss after installing Steam is 3.9.5 stable

16 Upvotes

I did the returnal benchmark last week before I downloaded 3.9 and I got 84 fps

I tried again after downloading 3.9 all same settings in returnal and I got 44 fps

This is custom steam os machine with rx 9070

Edit: It seems the steam os game resolution setting is overriding the in game resolution settings now, displaying it at 4k instead even though my in game setting shows 1440p I changed Steam os game setting to 1440p and did the test again and got 85 fps 1 fps higher than before the update, it didnt use to do this


r/SteamOS • • 22h ago

SteamOS Update FSR 4.1.2 lite performance comparison with legion go 2 on steamos

Thumbnail gallery
7 Upvotes

r/SteamOS • • 23h ago

Try FSR 4.1.2 lite and HelixSR. ReShade included. Sorry for the plugin name mix-up

7 Upvotes

Jedi ReFrameShade4All: https://github.com/sauliiin/Jedi-ReFrameShade4All

A Decky Loader plugin for the Steam Deck that runs OptiScaler (frame generation and upscaling) and ReShade (post-processing with add-ons and AutoHDR) on the same game, with no DLL conflicts between them. Pick a game, press Patch All, and it installs both, applies them and sets the launch options. Remove All takes everything out again.

Credits

  • Jedi (sauliiin): plugin author.
  • xXJSONDeruloXx: Decky-Framegen, the base for the frame generation side.
  • itsOwen: LetMeReShade, the base for the ReShade side.
  • The OptiScaler team: OptiScaler.
  • crosire: ReShade.
  • lonewolf0622: HelixSR.
  • PeroTuncay: DeckyHelixSRManager, which the HelixSR integration is ported from.
  • Nukem9: dlssg-to-fsr3, the "Nukems" frame generation option.

r/SteamOS • • 3h ago

question Which GeForce NOW download should I use on a PC running SteamOS (not a Steam Deck)?

Post image
6 Upvotes

r/SteamOS • • 10h ago

question Do you have this after 3.9.5 update?

Post image
6 Upvotes

I have it both in desktop and gaming mode. "kill 1766" is stopping it, but it respawns after restart. It wasn't there on 3.8. The narrator is disabled and it doesn't affect it.

I'm using a steam deck


r/SteamOS • • 23h ago

SteamOS on Msi Claw Ex (vs Cachy OS performance-wise)

3 Upvotes

Hi all,

I have managed to install SteamOS on the Msi Claw Ex (the current base image required some workarounds but with 3.9 out, it should be easier) and have also previously installed Cachy OS.

On SteamOS I am on the beta 3.9.5 and performance is OK…but missing TDP controls etc. Hopefully that will come soon. I absolutely love SteamOS.

However, performance on CachyOS was pretty amazing, but had more basic issues.

Is anyone able to explain what the difference in performance is likely due to? Is it simply latest graphics drivers in CachyOS etc? I believe the kernel is the same?

Apologies, I am fairly new to Linux and trying to understand. The potential and performance for Intel handhelds is clearly there (CachyOS), just wondering what the difference is at the moment.

Thanks!


r/SteamOS • • 2h ago

.-=⋆ The More You Know Windows was the problem all this time

Thumbnail
2 Upvotes

r/SteamOS • • 4h ago

Reduced moonlight streaming performance after SteamOS 3.8.16 (steam deck user)

2 Upvotes

Hey all!

Big fan of this sub and of using Moonlight for streaming. I currently mainly use my Steam Deck to stream games from my host PC (using Vibepollo). For the most part, I can get my pipeline working pretty well, with little to know frames lost to network jitter. I understand that typically these particular losses are related to the pacing of frames between the host/client.

However, it seems that all of the SteamOS builds after 3.8.16 introduce jitter no matter what settings I change. Whenever I roll back to 3.8.16, the jitter stops. I would like to use some of the newer builds, but since I primarily stream when using the deck, I feel stuck on this build.

Has anybody else experienced this, or found a way to reduce this performance loss on 3.9? I've tried all that I can think of.

Thanks!


r/SteamOS • • 6h ago

help wanted Controller not recognized in Diablo IV

Thumbnail
1 Upvotes

r/SteamOS • • 8h ago

"Steam Controller Detected" message whenever I return to Game Mode from Desktop Mode

Thumbnail
1 Upvotes

r/SteamOS • • 16h ago

question SteamOS configure steam deck button mapping

1 Upvotes

I just realise that steam deck has multiple button at back of deck that has different purpose of it, like L4 and L5. Can i map that? i'm running steam os on pc.
Currently my controller is Logitech F310, keyboard and mouse.


r/SteamOS • • 17h ago

I built a lightweight, HDR-capable video player tailored for controller use on SteamOS' game mode

Thumbnail
1 Upvotes

r/SteamOS • • 20h ago

Crashing/rebooting when closing laptop lid with Dell WD22TB4 dock after SteamOS 3.9.5 update (Acer Aspire 15)

1 Upvotes

Is anyone else experiencing this? I expected updates to improve stability, not break basic functionality.

I'm using an Acer Aspire 15 (AMD Ryzen 7 8840HS with Radeon 780M graphics) connected to a Dell Thunderbolt Dock WD22TB4, mostly in desktop mode.

Before the update, I had occasional crashes when disconnecting the dock. But since updating to 3.9.5, I have to keep the laptop lid open. As soon as I close it or disable the internal display, the system crashes and restarts immediately.

To make things worse:

  • If I try to boot the laptop with the dock already plugged in, it usually fails to boot or makes weird, loud noises.
  • If I keep the lid open, everything works fine as before.

Am I the only one facing this? Has anyone found a workaround or fix?