protonscr

VRChat

appid 438100 3 threads, 1 open 1,193 comments last activity 2026-09-03
Latest maintainer comment · alasky17 · 2026-06-01 · #1199
@BarkBarklington Could you try Proton - Experimental and make sure you are *not* on the bleeding-edge branch? True to its name, the bleeding-edge branch has an AVPro regression right now that we are working to fix :)
Threads

VRChat proton open

#1199 · 1,191 comments · opened 2018-09-03 · last comment 2026-09-03 by DASPRiD

VRChat proton closed

#6687 · 1 comments · opened 2023-04-15 · last comment 2023-04-15 by kisak-valve

VRChat post udon update proton closed

#3934 · 1 comments · opened 2020-06-04 · last comment 2020-06-04 by kisak-valve
Recent activity
  • DASPRiD · 2026-09-03 · VRChat
    > **EDIT**: An example of shader that almost always does that is "**Warren's Fast Fur Shader**"(it's free, so probably the best for testing the problem). While it does have minimal impact in performance for everyone, lik...
  • Flimsy-Fox · 2026-09-03 · VRChat
    > Replying to https://github.com/ValveSoftware/Proton/issues/1199#issuecomment-5531158340 I have noticed that disabling AA (which is enabled by default) solves the FPS issue for me. AA seems to be a burden on Linux with ...
  • peq42 · 2026-09-03 · VRChat
    both me and a friend of mine noticed a weird issue that **only** happens on linux: Certain shaders(or something on the avatars) will kill performance almost completely. Something like 90 FPS going down to 40 if you get c...
  • LethalManBoob · 2026-08-30 · VRChat
    I've already tried completely deleting the prefix and the entire game itself
  • peq42 · 2026-08-30 · VRChat
    > For me, vrchat simply refuses to let me connect to other lobbies without crashing. Ive tried all fixes. Only proton-cachy works. I looked at proton logs, they show nothing. > > [output_log_2026-08-29_22-03-01.txt](http...
  • LethalManBoob · 2026-08-29 · VRChat
    For me, vrchat simply refuses to let me connect to other lobbies without crashing. Ive tried all fixes. Only proton-cachy works. I looked at proton logs, they show nothing. [output_log_2026-08-29_22-03-01.txt](https://gi...
  • peq42 · 2026-08-09 · VRChat
    after digging quite a bit and with some friends' help, I think I found out the source of most my issues https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1585434 Nvidia has problems with the kernel module used to encr...
  • All-The-Foxes · 2026-07-28 · VRChat
    > Maybe its the nvidia drivers? both 595 and 610 have the issue, so we may need valve to yell at them to fix something... I am using 595. It's not the driver.

Proton versions over time

Launch lines, newest first

PROTON_LOG=0 AMD_VULKAN_ICD=RADV mangohud %command% --enable-hw-video-decoding --affinity=FFFF --process-priority=2 --main-thread-priority=2 -screen-width
unset=SDL_VIDEODRIVER DXVK_ASYNC=1 %command% --disable-hw-video-decoding --enable-avpro-in-proton
gamemoderun %command% --enable-avpro-in-proton
WINE_CPU_TOPOLOGY="40:0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39" %command%
PROTON_USE_WINED3D=1 PROTON_USE_D12VK=1 gamemoderun %command%
PROTON_USE_WINED3D=1 %command% --enable-avpro-in-proton

Launch options

Upstream links

DLLs

Error codes