Compatibility Report

• Name of the game with compatibility issues: Marvel Rivals
• Steam AppID of the game: 2767030
• Proton version(s) tested:
  • Proton Hotfix
  • Proton Experimental
  • Proton 11
  • GE-Proton (latest available)

System Information

Distribution: Linux Mint Debian Edition (LMDE)
Kernel: 6.1.0-49-amd64
GPU:

• NVIDIA GeForce RTX 3080 Laptop GPU
• AMD Radeon Graphics (Renoir iGPU)

NVIDIA Driver:

• Originally: 535.261.03
• Upgraded to: 550.163.01

Vulkan Loader:
1.3.239
Steam:
Native package (Debian/LMDE)

Full system info pr. Steam
https://gist.github.com/ChristineTilling/0acc7e26fe418ef1a4d34987e075be7b

I confirm:

• [ x ] that I haven't found an existing compatibility report for this game.
• [ x ] that I have checked whether there are updates for my system available.
  Note, i checked the similar previous issue from 2024 and could conclude that this is very likely a separate and more recent issue.

Proton Log:
https://gist.github.com/ChristineTilling/c4c6711d77a54bf57800d3a6a5fcc4f6

Symptoms

After the latest Marvel Rivals update, the game no longer starts.

The launcher starts successfully, but the game immediately exits and displays:

DirectX 12 is not supported on your system.

No game window is created.

The same installation worked correctly before the latest Marvel Rivals update.

Reproduction

Install Marvel Rivals.
Select Proton Hotfix (also reproduced with Proton Experimental, Proton 11, and GE-Proton).
Launch the game.
Launcher does not appear, window with DirectX 12 error appears instead.
The game exits with the DirectX 12 error.

Older issue found with Marvel Rivals, issue is 2 years old and game worked with the same setup prior to new season update.

The following troubleshooting have been performed:
Reinstalled game
Deleted Proton prefix.
Deleted shader cache.
Verified game files.
Tested Proton Hotfix.
Tested Proton Experimental.
Tested Proton 11.
Tested latest GE-Proton.
Removed all launch options.
Tested various launch options.
Upgraded NVIDIA driver from 535.261.03 to 550.163.01.
Verified Vulkan is functioning correctly.
Verified Steam is using the NVIDIA GPU (nvidia-smi shows Steam processes on the RTX 3080).
Verified both 32-bit and 64-bit NVIDIA Vulkan libraries are installed and version-matched.

Forced the NVIDIA Vulkan ICD using:
VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/nvidia_icd.json

(No change.)

Host Vulkan reports the required extension:
VK_KHR_load_store_op_none : extension revision 1

The NVIDIA driver also reports correctly:
driverInfo = 550.163.01

Relevant information that i got to work with from the proton log:
info: DXVK: v3.0.1-4-g46a183b55b29e5e
info: Skipping: Device does not support required feature 'khrLoadStoreOpNone' (extension: VK_KHR_load_store_op_none)
info:vkd3d-proton:vkd3d_config_flags_init_once: VKD3D_CONFIG=''. err:vkd3d-proton:vkd3d_create_vk_device: Failed to create Vulkan device, vr -3.

The host Vulkan installation advertises VK_KHR_load_store_op_none, but DXVK inside Proton reports that the device does not support the extension and subsequently fails to create the Vulkan device. This is weird.

Finally vulcaninfo and nvidia_smi:
https://gist.github.com/ChristineTilling/259bc633533c820dada3fbde43966a56

If you require any other information, let me know, i have been looking at this for several hours already, and i am out of ideas and options.