Subnautica 2 (1962700)

[RokeJulianLockhart]

Compatibility Report

• Name of the game with compatibility issues

  Subnautica 2

• Steam AppID of the game

  1962700

System Information

• GPU

  • 1. Details

       #!/usr/bin/env sh
       kinfo | yq -P | grep 'Graphics Processor'

    2. Graphics Processor 1: AMD Radeon RX 5700
       Graphics Processor 2: AMD Ryzen 5 7600X 6-Core Processor

  • Details

    1. #!/usr/bin/env sh
       run0 lshw -json -C display | yq -P

       [^1]

    2. - id: display
         class: display
         claimed: true
         handle: PCI:0000:03:00.0
         description: VGA compatible controller
         product: Navi 10 [Radeon RX 5600 OEM/5600 XT / 5700/5700 XT]
         vendor: Advanced Micro Devices, Inc. [AMD/ATI]
         physid: "0"
         businfo: pci@0000:03:00.0
         version: c4
         width: 64
         clock: 33000000
         configuration:
           driver: amdgpu
           latency: "0"
         capabilities:
           pm: Power Management
           pciexpress: PCI Express
           msi: Message Signalled Interrupts
           vga_controller: true
           bus_master: bus mastering
           cap_list: PCI capabilities listing
           rom: extension ROM
       - id: display
         class: display
         claimed: true
         handle: PCI:0000:59:00.0
         description: VGA compatible controller
         product: Raphael
         vendor: Advanced Micro Devices, Inc. [AMD/ATI]
         physid: "0"
         businfo: pci@0000:59:00.0
         version: c7
         width: 64
         clock: 33000000
         configuration:
           driver: amdgpu
           latency: "0"
         capabilities:
           pm: Power Management
           pciexpress: PCI Express
           msi: Message Signalled Interrupts
           msix: MSI-X
           vga_controller: true
           bus_master: bus mastering
           cap_list: PCI capabilities listing

• Video driver version

  1. Details

     #!/usr/bin/env sh
     glxinfo | grep -E "OpenGL vendor|OpenGL version|Mesa" | yq -P

  2. client glx vendor string: Mesa Project and SGI
     OpenGL vendor string: AMD
     OpenGL core profile version string: 4.6 (Core Profile) Mesa 26.0.6
     OpenGL version string: 4.6 (Compatibility Profile) Mesa 26.0.6
     OpenGL ES profile version string: OpenGL ES 3.2 Mesa 26.0.6

• Kernel version

  • 1. Details

       #!/usr/bin/env sh
       python3.15 - <<'EOF' |
       #!/usr/bin/env python3.15
       import json
       import platform
       
       print(json.dumps(platform.uname()._asdict()))
       EOF
       yq -P '. | pick(["system", "version"])'

    2. system: Linux
       version: '#1 SMP PREEMPT_DYNAMIC Wed May 13 16:08:06 UTC 2026'

  • 1. Details

       #!/usr/bin/env sh
       rpm -qf /boot/vmlinuz-$(uname -r) \
       	--queryformat "$(
       		cat <<'EOF'
       Name: %{NAME}
       Version: %{VERSION}
       Release: %{RELEASE}
       Architecture: %{ARCH}
       Install Date: %{INSTALLTIME:date}
       Size: %{SIZE}
       Signature: %{SIGPGP:pgpsig}
       Source RPM: %{SOURCERPM}
       Build Date: %{BUILDTIME:date}
       Build Host: %{BUILDHOST}
       Packager: %{PACKAGER}
       Vendor: %{VENDOR}
       EOF
       	)"$'\n' | yq -P

    2. Name: kernel-core
       Version: 7.0.6
       Release: 200.fc44
       Architecture: x86_64
       Install Date: Thu 14 May 2026 10:54:56 BST
       Size: 103888091
       Signature: (none)
       Source RPM: kernel-7.0.6-200.fc44.src.rpm
       Build Date: Wed 13 May 2026 16:51:03 BST
       Build Host: buildhw-x86-02.rdu3.fedoraproject.org
       Packager: Fedora Project
       Vendor: Fedora Project

• Link to full system information report as Gist

  42837531's e9030b4a494e7a1f59c135130828712e, at gist.github.com

• Proton version

  1. Details

     #!/usr/bin/env sh
     cat $HOME/.local/share/Steam/steamapps/compatdata/1962700/version

  2. 11.0-100

I confirm

• that I haven't found an existing compatibility report for this game.
• that I have checked whether there are updates for my system available.

Symptoms

Firstly, the loading window appeared:

…with a separate, black window, behind it, whereupon it ANRs:

All subsequent attempted invocations result in nothing, except "Start" being replaced with "Stop", in Steam's interface, when it invokes:

1. 
2. 

Additionally, what steam-for-linux/issues/13165#issuecomment-4405807885 describes occurs (as ccpp-2026-05-15-15:12:35.791719-51835.zip should demonstrate), alongside:

1. bugzilla.redhat.com/show_bug.cgi?id=2467442

2. bugzilla.redhat.com/show_bug.cgi?id=2464001#c13

The logs that I observe are:

• StdOut

   chdir "/home/RokeJulianLockhart/.local/share/Steam/steamapps/common/Subnautica2"
   ERROR: ld.so: object '/home/RokeJulianLockhart/.local/share/Steam/steamrt32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
   steam-runtime-launcher-service[77380]: I: Running spawn command sh
   ERROR: ld.so: object '/home/RokeJulianLockhart/.local/share/Steam/steamrt32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
   ERROR: ld.so: object '/home/RokeJulianLockhart/.local/share/Steam/steamrt32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
   ERROR: ld.so: object '/home/RokeJulianLockhart/.local/share/Steam/steamrt64/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
   ERROR: ld.so: object '/home/RokeJulianLockhart/.local/share/Steam/steamrt32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
   Game Recording - would start recording game 1962700, but recording for this game is disabled
   Adding process 83481 for gameID 1962700
   ERROR: ld.so: object '/home/RokeJulianLockhart/.local/share/Steam/steamrt32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
   Adding process 83484 for gameID 1962700
   Adding process 83504 for gameID 1962700
   Adding process 83508 for gameID 1962700
   ERROR: ld.so: object '/home/RokeJulianLockhart/.local/share/Steam/steamrt32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
   ERROR: ld.so: object '/home/RokeJulianLockhart/.local/share/Steam/steamrt32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
   ERROR: ld.so: object '/home/RokeJulianLockhart/.local/share/Steam/steamrt32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
   Adding process 83630 for gameID 1962700
   Adding process 83631 for gameID 1962700

• #popup_target > div > div._1ENHEsrSLcTRtPQFl1F-wL._1DvwQt0JN-Ogp_4tVZdkzX > div._3mz8wQ6Q44B8P7pzPP4Iyw > div._3Z7VQ1IMk4E3HsHvrkLNgo > div._3Z3ohQ8-1NKnCZkbS6fvy > div > div._2Lu3d-5qLmW4i19ysTt2jT._7AlhCx3XGzBeIrQaCneUD._1gqEjB5QsKT_NftD1dEsdZ

   ExecCommandLine: "'~/.steam/root/ubuntu12_32/steam' 'steam://rungameid/1962700'"
   ExecuteSteamURL: "steam://rungameid/1962700"
   GameAction [AppID 1962700, ActionID 1] : LaunchApp changed task to CheckShaderDepotManifest with ""
   GameAction [AppID 1962700, ActionID 1] : LaunchApp changed task to ProcessingInstallScript with ""
   Running install script evaluator for AppID 1962700, 3 step(s)  /home/RokeJulianLockhart/.local/share/Steam/steamrt64/steam-launch-wrapper -- /home/RokeJulianLockhart/.local/share/Steam/steamrt64/reaper SteamLaunch AppId=1962700 Install=1 -- '/home/RokeJulianLockhart/.local/share/Steam/steamapps/common/SteamLinuxRuntime_4'/_v2-entry-point --verb=run -- '/home/RokeJulianLockhart/.local/share/Steam/steamapps/common/Proton Hotfix'/proton run '/home/RokeJulianLockhart/.local/share/Steam/legacycompat/iscriptevaluator.exe' 'legacycompat\evaluatorscript_1962700.vdf'GameAction [AppID 1962700, ActionID 1] : LaunchApp changed task to SynchronizingCloud with ""
   GameAction [AppID 1962700, ActionID 1] : LaunchApp changed task to SynchronizingStats with ""
   GameAction [AppID 1962700, ActionID 1] : LaunchApp changed task to ShowInterstitials with ""
   GameAction [AppID 1962700, ActionID 1] : LaunchApp waiting for user response to ShowInterstitials ""
   GameAction [AppID 1962700, ActionID 1] : LaunchApp continues with user response "ShowInterstitials"
   GameAction [AppID 1962700, ActionID 1] : LaunchApp changed task to SiteLicenseSeatCheckout with ""
   GameAction [AppID 1962700, ActionID 1] : LaunchApp changed task to DelayLaunch with ""
   GameAction [AppID 1962700, ActionID 1] : LaunchApp changed task to CreatingProcess with ""
   GameAction [AppID 1962700, ActionID 1] : LaunchApp waiting for user response to CreatingProcess ""
   GameAction [AppID 1962700, ActionID 1] : LaunchApp continues with user response "CreatingProcess"
   steam-runtime-launch-client\0--alongside-steam\0--env-fd=126\0-c\0/home/RokeJulianLockhart/.local/share/Steam/steamrt64/steam-launch-wrapper -- /home/RokeJulianLockhart/.local/share/Steam/steamrt64/reaper SteamLaunch AppId=1962700 -- '/home/RokeJulianLockhart/.local/share/Steam/steamapps/common/SteamLinuxRuntime_4'/_v2-entry-point --verb=waitforexitandrun -- '/home/RokeJulianLockhart/.local/share/Steam/steamapps/common/Proton Hotfix'/proton waitforexitandrun  '/home/RokeJulianLockhart/.local/share/Steam/steamapps/common/Subnautica2/Subnautica2.exe'\0Game process added : AppID 1962700 "/home/RokeJulianLockhart/.local/share/Steam/steamrt64/steam-launch-wrapper -- /home/RokeJulianLockhart/.local/share/Steam/steamrt64/reaper SteamLaunch AppId=1962700 -- '/home/RokeJulianLockhart/.local/share/Steam/steamapps/common/SteamLinuxRuntime_4'/_v2-entry-point --verb=waitforexitandrun -- '/home/RokeJulianLockhart/.local/share/Steam/steamapps/common/Proton Hotfix'/proton waitforexitandrun  '/home/RokeJulianLockhart/.local/share/Steam/steamapps/common/Subnautica2/Subnautica2.exe'", ProcID 83481, IP 0.0.0.0:0
   GameAction [AppID 1962700, ActionID 1] : LaunchApp changed task to WaitingGameWindow with ""
   GameAction [AppID 1962700, ActionID 1] : LaunchApp changed task to Completed with ""

If I close it each time it does this, then allow Steam to download something that it chooses to download after each closure (it also mentions shader re-computation), it operates thereafter.

Reproduction

#!/usr/bin/env sh
steam -dev
steam steam://install/1962700
steam steam://rungameid/1962700

[JaredRichardWilliam]

I just had it crash mid-game, with https://steamdb.info/sub/1306963/history/?changeid=U:28307095. Due to https://bugzilla.redhat.com/show_bug.cgi?id=2447147#c14 and https://bugzilla.redhat.com/show_bug.cgi?id=2447146#c13, ¹ all I have elsewhere is some Abrt traces, from the FAF server, amalgamated into existing RHBZ tickets:

• https://retrace.fedoraproject.org/faf/reports/bthash/3d8a8e8d33f96e8bac01a4f023bac522fd7fa06c

• https://retrace.fedoraproject.org/faf/reports/bthash/a9144b30c6a873383f0141eede1b4da3bedf46b5

However, I've uploaded the original crash reports, too, inside ccpp-2026-05-15-16:46:.zip. I wonder whether it's due to https://discussion.fedoraproject.org/t/kde-trying-to-rename-a-file-the-name-disappears-replacing-with-the-extension-in-bold-making-it-really-hard-to-edit/183657/6.

When this occurs, my screen appears frozen. To remediate it, I disable, then re-enable, it.

Footnotes

1. https://bugzilla.redhat.com/show_bug.cgi?id=2478303#c0 ↩

[RokeJulianLockhart]

I'm forced to reboot, each time I want to invoke Subnautica 2, I've realised:

A logout is insufficient, somehow.

[BoxGod14]

Same thing happened to me, the solution was to use Proton 7 with no parameters or Proton Experimental with VKD3DDISABLEEXTENSIONS=VKEXTmeshshader,VKNVrawacces…"Same thing happened to me, the solution was to use Proton 7 with no parameters or Proton Experimental with VKD3D_DISABLE_EXTENSIONS=VK_EXT_mesh_shader,VK_NV_raw_access_chains %command%
It's a bug exclusive to RTX 5000 GPUs

[JustaPeriod]

OS: Fedora Linux 44 (KDE Plasma Desktop Edition) x86_64
Kernel: Linux 7.0.6-200.fc44.x86_64
CPU: AMD Ryzen 9 9950X3D (32) @ 5.76 GHz
GPU 1: NVIDIA GeForce RTX 5090 [Discrete]
GPU Drivers: 595.71.05

Game crashes on experimental regardless using gamescope unless I use the following parameters on launch:
VKD3D_DISABLE_EXTENSIONS=VK_EXT_mesh_shader,VK_NV_raw_access_chains %command%

[RokeJulianLockhart]

In retrospect, discussion.fedoraproject.org/t/191627, which describes a significantly worse effect, than what I have previously described, may also be a direct consequence of the game (and/or Proton's emulation, thereof). Some relevant logs are undermentioned:

• bootstrap_log.previous.txt

• bootstrap_log.txt

• cef_log.previous.txt

• client_networkmanager.txt

• cloud_log.previous.txt

• cloud_log.txt

• compat_log.previous.txt

• connection_log_7777.txt

• connection_log.previous.txt

• console_log.previous.txt

• console_log.txt

• console-linux.previous.txt

• content_log.previous.txt

• content_log.txt

• controller_ui.txt

• controller.txt

• gameprocess_log.txt

• inventory_service_log.txt

• librarysharing_log.txt

• parental_log.txt

• remote_connections.previous.txt

• remote_connections.txt

• shader_log.txt

• sitelicense_log.txt

• stats_log.txt

• steam_api_log.txt

• steam-runtime-system-info-1765668915.txt

• steam-runtime-system-info-1778857189.txt

• steamsysinfo.txt

• steamui_audio.previous.txt

• steamui_audio.txt

• steamui_html.previous.txt

• steamui_librarycache.previous.txt

• steamui_librarycache.txt

• steamui_login.previous.txt

• steamui_login.txt

• steamui_update.txt

• steamui.txt

• streaming_log.txt

• systemdockmanager.txt

• systemperfreporting.txt

• text_filter_log.txt

• timedtrial_log.txt

• updateui_child.previous.txt

• webhelper_gpu.previous.txt

• webhelper-linux.txt

• webhelper.previous.txt

• workshop_log.txt

Should this be reported at steam-for-linux/issues? Not all are intact, per .part.zip…

[dsalt]

Sometimes hangs on start-up. (Black screen, except for the “busy” indicator at the lower right corner.)

Telling Steam to kill the running instance doesn't function correctly: the game continues in its stuck state and needs to be killed in another way, which I've semi-automated with

kill $(ps ax | grep Win64-Ship | awk '{ print $1; exit }')

(I note that the devs are aware of a start-up hang on Steam Deck. They have a workaround based on forcing display refresh rate, which is interesting because I have the game window on a Freesync screen.)

steam-1962700.log.gz

[RokeJulianLockhart]

It's a bug exclusive to RTX 5000 GPUs

@BoxGod14, it can't be, because mine is from AMD.

[damien]

Confirming the VKD3D_DISABLE_EXTENSIONS=VK_EXT_mesh_shader,VK_NV_raw_access_chains workaround. Same driver version as the earlier RTX 5090 report in this thread, so not fixed in 595.71.05.

• GPU: NVIDIA GeForce RTX 5090 (Blackwell)
• NVIDIA driver: 595.71.05
• OS/Kernel: Fedora 44 / Linux 7.0.4-200.fc44.x86_64
• Proton: Experimental (2026-05-20), fresh prefix
• Game build: Subnautica 2 CL-113933 (build 53, packaged 2026-05-18)

Without the workaround: DXGI_ERROR_DEVICE_REMOVED ~5s after the loading screen appears (during the first frame's SkyLight real-time capture). With it: launches cleanly to main menu and lobby join.

The underlying vkd3d-proton issue (mesh shader / VK_NV_raw_access_chains path on Blackwell) may warrant its own upstream report at HansKristian-Work/vkd3d-proton, since this thread mixes the AMD launcher-freeze symptom (OP) with the NVIDIA Blackwell GPU hang.