Linux platforms no longer detect fluidsynth if the game is running with steam.

[VasilisThePikachu]

(ignore the low vram artifacts i did this in a vm)

Reported in #help too by another user https://discord.com/channels/310555209753690112/790656972801572905/1303720864080068689

[ERRO] midi: Failed to initialize fluidsynth due to exception, disabling MIDI support:
System.DllNotFoundException: Unable to load shared library 'fluidsynth' or one of its dependencies. In order to help diagnose loading problems, consider using a tool like strace. If you're using glibc, consider setting the LD_DEBUG environment variable: 
/home/myra/.steam/debian-installation/steamapps/common/Space Station 14/bin/loader/fluidsynth.so: cannot open shared object file: No such file or directory
/home/myra/.steam/debian-installation/steamapps/common/Space Station 14/dotnet/shared/Microsoft.NETCore.App/8.0.0/fluidsynth.so: cannot open shared object file: No such file or directory
/home/myra/.steam/debian-installation/steamapps/common/Space Station 14/bin/loader/libfluidsynth.so: cannot open shared object file: No such file or directory
/home/myra/.steam/debian-installation/steamapps/common/Space Station 14/dotnet/shared/Microsoft.NETCore.App/8.0.0/libfluidsynth.so: cannot open shared object file: No such file or directory
/home/myra/.steam/debian-installation/steamapps/common/Space Station 14/bin/loader/fluidsynth: cannot open shared object file: No such file or directory
/home/myra/.steam/debian-installation/steamapps/common/Space Station 14/dotnet/shared/Microsoft.NETCore.App/8.0.0/fluidsynth: cannot open shared object file: No such file or directory
/home/myra/.steam/debian-installation/steamapps/common/Space Station 14/bin/loader/libfluidsynth: cannot open shared object file: No such file or directory
/home/myra/.steam/debian-installation/steamapps/common/Space Station 14/dotnet/shared/Microsoft.NETCore.App/8.0.0/libfluidsynth: cannot open shared object file: No such file or directory

   at NFluidsynth.Native.LibFluidsynth.fluid_set_log_function(Int32 severity, LoggerDelegate func, IntPtr data)
   at NFluidsynth.Logger.SetLoggerMethod(LoggerDelegate method)
   at Robust.Client.Audio.Midi.MidiManager.InitializeFluidsynth() in /home/runner/work/RobustToolbox/RobustToolbox/Robust.Client/Audio/Midi/MidiManager.cs:line 176
[INFO] game: Shutting down! Reason: Main window closed

Repro: Linux mint, Arch (well all linux distros that update steam will be effected. As steam native runtimes are now default.)

Needs #4997

Fix for now is to use standalone launcher. Or flatpak

[VasilisThePikachu]

Oh i bricked my mint vm trying to install vmbox to copy the error

[ItzzCode]

Can confirm it's not being detected, linux mint 22, ss14 version 0.29.1.0

[NicoSGF64]

For everyone experiencing this, I have tried every solution in here with me having fluidsynth V. 2.3.7, on Arch Linux kernel 6.11.6-arch1-1.
The trick that worked for me is putting LD_PRELOAD=/lib/libfluidsynth.so (or whatever it is called in your system) in the launch options from the executable (so for me LD_PRELOAD=/lib/libfluidsynth.so ~/.local/share/Steam/steamapps/common/Space Station 14 Playtest/SS14.Launcher).
I haven't been able to find a way to put it in the Steam commandbox however, since it gives out an error saying ERROR: ld.so: object '/lib/fluidsynth.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored., with ~/.local/share/Steam/steamapps/common/SteamLinuxRuntime_soldier/pressure-vessel/bin/steam-runtime-launcher-interface-0: error while loading shared libraries: libportaudio.so.2: cannot open shared object file: No such file or directory being the thing that terminates the process in spite of libportaudio.so.2 existing in /lib.

For some reason, only GLIBC_TUNABLES=glibc.rtld.dynamic_sort=1 LD_PRELOAD=/lib/fluidsynth.so,libportaudio.so.2 %command% as Steam launch parameters is able to fix that and get the game running, but MIDI still isn't detected, in spite of the LD_PRELOAD.

[waylon531]

@NicoSGF64 If you look at the logs again you will probably see another error similar to error while loading shared libraries: libportaudio.so.2. It took me six tries to get a full LD_PRELOAD command that works, my end result was LD_PRELOAD="/usr/lib/libportaudio.so /usr/lib/libfluidsynth.so /usr/lib/libinstpatch-1.0.so.2 /usr/lib/libreadline.so.8 /usr/lib/libglib-2.0.so.0 /usr/lib/libpcre2-8.so.0" %command%

I'm on an arch derivative so it'll probably work if you're on arch, this reportedly doesn't work for people on other distros