protonscr

AeternoBlade

protonopen appid 1234120Game compatibility - UnofficialMesa drivers
ValveSoftware/Proton#5526 · opened 2022-01-29 by ipr · updated 2026-08-21 · 7 comments · github · game page · search this game
Iipr 2022-01-29 github

Compatibility Report

  • Name of the game with compatibility issues:AeternoBlade
  • Steam AppID of the game:1234120

System Information

  • GPU: [AMD/ATI] Vega 10 XL/XT [Radeon RX Vega 56/64] (rev c3)
  • Driver/LLVM version: Mesa 21.3.5
  • Kernel version: 5.16.4
  • Proton version:6.3-8

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.

Symptoms

Parts of the level (terrain) is not rendering. Game has some platform-jumping elements so this becomes apparent quickly: you see background scenery instead of the forefront terrain where you are standing.

Problem occurs both with DXVK and with PROTON_USE_WINED3D=1

Game logs that texture is not found (Maps/Stage1/Textures/Material__26) which does not exist in game directory: unknown if it should exist (or if it is something else).

Reproduction

  1. start game
  2. play game normally

steam-1234120.log

Iipr 2022-01-29 github

It has been reported in the forums so it is likely something the developer should fix.

Kkisak-valve maintainer 2022-01-29 github

Hello @ipr, it looks like this is an OpenGL game. PROTON_USE_WINED3D=1 wouldn't have an effect when DirectX isn't in the render path.

It may be worthwhile to also mention this issue to your video driver vendor.

PPonjen 2022-12-28 github

I can confirm this is a GPU related issue and not a Proton issue. I have the missing terrain problem on my Steam Deck (AMD GPU), while the game is perfectly fine on my Linux Mint desktop (NVIDIA GPU). The game may just not be compatible with AMD and integrated GPUs.

Update 2024: I have recently switched my desktop from NVIDIA to AMD. No terrain issue. So the problem stems from integrated GPUs specifically.

Wwaspennator 2024-03-28 github

Don't exactly have the game to check on hand, but it seems like the issue was still present around September 2023

Iipr 2024-07-27 github

I can confirm this is a GPU related issue and not a Proton issue. I have the missing terrain problem on my Steam Deck (AMD GPU), while the game is perfectly fine on my Linux Mint desktop (NVIDIA GPU). The game may just not be compatible with AMD and integrated GPUs.

Update 2024: I have recently switched my desktop from NVIDIA to AMD. No terrain issue. So the problem stems from integrated GPUs specifically.

My GPU is not integrated to CPU or motherboard so that theory goes out the window.

However, with Proton 9.0-2 and Mesa 24.1.3 it is working fine.

Wwaspennator 2026-08-17 github

Tested on oled Steam deck LE with proton Experimental. game still seems to be having shadow problems, none of which appear on my laptop with nvidia.

@tarceri sorry for the ping but I just recently got it on sale and tested it.

steam-1234120.log

Windows Gtx 1650
Image

Steam Deck

Image
Ttarceri 2026-08-21 github

The original bug report was fixed by: https://gitlab.freedesktop.org/mesa/mesa/-/commit/0843d4cbc3546a80d76109c892a1e1a3b847dd55

The latest screenshots from @waspennator was a different regression fixed by https://gitlab.freedesktop.org/mesa/mesa/-/commit/e5b1c568b91045c7a73e0193844a133b871b6448

This bug can be closed IMO

Proton versions

Launch options