protonscr

Left 4 Dead 2

appid 550 3 threads, 1 open 31 comments last activity 2026-07-24
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Latest maintainer comment · alasky17 · 2026-07-24 · #3831
> > I’m on Steam Machine and L4D2 does not work here either. Seriously why even fucking mark the game as verified if it doesn’t work at all? > > Even after switching to Native too, the game either crashes immediately after loading finishes or it crashes randomly mid-game. Could you try SteamOS Beta and see if that helps? I was reproducing the crash with the native version of the game with SteamOS ...
Threads

Left 4 Dead 2 proton open

#3831 · 29 comments · opened 2020-05-05 · last comment 2026-07-24 by alasky17

Left 4 Dead 2 proton closed

#7855 · 1 comments · opened 2024-06-26 · last comment 2024-06-26 by kisak-valve

Left 4 Dead 2 proton closed

#5904 · 1 comments · opened 2022-06-14 · last comment 2022-06-14 by kisak-valve
Recent activity
  • alasky17maintainer · 2026-07-24 · Left 4 Dead 2
    > > I’m on Steam Machine and L4D2 does not work here either. Seriously why even fucking mark the game as verified if it doesn’t work at all? > > Even after switching to Native too, the game either crashes immediately aft...
  • orzklv · 2026-07-24 · Left 4 Dead 2
    > Replying to https://github.com/ValveSoftware/Proton/issues/3831#issuecomment-5064825712 I also use this launch options: ``SDL_VIDEODRIVER=wayland STEAM_COMPAT_RUNTIME_SDL2=1 %command% -vulkan -malloc=system -novid -noj...
  • Noxillio · 2026-07-24 · Left 4 Dead 2
    > Found the cause, after slapping https://steamcommunity.com/sharedfiles/filedetails/?id=3549465848 from Workshop, the issue went away and game stopped crashing while playing at core-ss server (where chaos is constant). ...
  • orzklv · 2026-06-08 · Left 4 Dead 2
    Found the cause, after slapping https://steamcommunity.com/sharedfiles/filedetails/?id=3549465848 from Workshop, the issue went away and game stopped crashing while playing at core-ss server (where chaos is constant).
  • Hicks79 · 2026-02-13 · Left 4 Dead 2
    I have USB headphones that have never given me any problems with the microphone. However, in L4D2 everything works perfectly except for the microphone. I've tried everything I can in the settings (including leaving the m...
  • gelebflamefinger · 2025-12-08 · Left 4 Dead 2
    ![Image](https://github.com/user-attachments/assets/ad0c3c63-9f56-4bca-b69c-d130a407925b) I also get this error connecting to VAC servers using Proton -- would be nice to be able to play online with Proton without having...
  • orzklv · 2025-11-17 · Left 4 Dead 2
    @simifor I gave up, moved on to dual-boot Windows 11 just to play with friends on core-ss server. Also, I've ran into issue where Escape from Tarkov wouldn't even start and this one actually served me as breaking point.
  • simifor · 2025-11-14 · Left 4 Dead 2
    @orzklv Ok, I also checked on my nvidia laptop, 4060 same generation as your card, and the game works fine. However, that is on arch and it's likely that your issue is related to the libraries shipped with nixos. Though ...

Proton versions over time

Launch lines, newest first

SDL_VIDEODRIVER=wayland STEAM_COMPAT_RUNTIME_SDL2=1 %command% -vulkan -malloc=system -novid -nojoy +mat_monitorgamma_tv_enabled
%command% -condebug
%command% -vulkan -condebug

Launch options

Upstream links

DLLs