Issues between Lsfg + either vkbasalt, vkbasalt_overlay (mantained) or vkpost (vkbasalt fork)

[the-cave-dweller]

vkcube somehow opens with vkpost (vkbasalt fork) and lsfg (allows to toggle effect on-off)

It however still fails to load any steam game, same for the rest of them are there any plans to fix generation in order to work with this type of vulkan shading apps?

VK_INSTANCE_LAYERS=VK_LAYER_KHRONOS_validation:VK_LAYER_MANGOHUD_overlay_x86_64 ENABLE_LSFG=1 ENABLE_VKPOST=1 vkcube
Selected WSI platform: wayland
lsfg-vk: using profile with name '4x FG / 85% [Performance]' (identified via executable)
vkPost info: config file: /home/rodolfo/.config/vkPost/vkPost.conf
vkPost info: toggleKey = Home
vkPost info: enableOnLaunch = False
vkPost info: effects = EyeAdaption:DPX
vkPost info: EyeAdaption = /home/rodolfo/.config/vkBasalt/reshade-shaders/Shaders/EyeAdaption.fx
vkPost info: DPX = /home/rodolfo/.config/vkBasalt/reshade-shaders/Shaders/DPX.fx
vkPost info: LumaSharpen = /home/rodolfo/.config/vkBasalt/reshade-shaders/Shaders/LumaSharpen.fx
vkPost info: reshadeTexturePath = /home/rodolfo/.config/vkBasalt/reshade-shaders/Textures
vkPost info: reshadeIncludePath = /home/rodolfo/.config/vkBasalt/reshade-shaders/Shaders
vkPost info: autoApplyDelay = 800
WARNING: radv is not a conformant Vulkan implementation, testing use only.
[2026-02-05 08:07:10.558] [MANGOHUD] [info] [gpu.cpp:89] Set renderD128 as active GPU (driver=amdgpu id=1002:7550 pci_dev=0000:2d:00.0)
Selected GPU 0: AMD Radeon RX 9070 XT (RADV GFX1201), type: DiscreteGpu
WARNING: radv is not a conformant Vulkan implementation, testing use only.
[2026-02-05 08:07:10.634] [MANGOHUD] [error] [cpu.cpp:784] Failed to initialize CPU power data
[2026-02-05 08:07:10.634] [MANGOHUD] [error] [battery.cpp:29] No battery found
[2026-02-05 08:07:10.691] [MANGOHUD] [error] [cpu.cpp:784] Failed to initialize CPU power data
[2026-02-05 08:07:11.197] [MANGOHUD] [error] [cpu.cpp:784] Failed to initialize CPU power data
[2026-02-05 08:07:11.700] [MANGOHUD] [error] [cpu.cpp:784] Failed to initialize CPU power data
[2026-02-05 08:07:12.204] [MANGOHUD] [error] [cpu.cpp:784] Failed to initialize CPU power data

WIthout Mangohub layer (Not showing the fake fps)

WIth Mangohub layer (Showing the fake fps)

[the-cave-dweller]

Hi, opened a discussion on lsfg-vk, but it seems that issue comes from vkbasalt layer PancakeTAS/lsfg-vk#462

Noticed you still mantained a fork so sending this to see your thoughts, or if you think anything can be done, it seems that there are issues for the system to produce both vk layers on specific situations, sent example was with VKPOST, but this same situation occurs with VKBASALT on command:

VK_INSTANCE_LAYERS=VK_LAYER_KHRONOS_validation ENABLE_LSFG=1 ENABLE_VKBASALT=1 vkcube

It seems to open on cube, but any major app fails on black screen

[Boux]

@the-cave-dweller

Hi, i pushed the experimental branch feature/lsfg-vk-compatibility. If you clone the repo, checkout that branch and follow the build instruction, it might work for you too. You can follow the build/install guide in the readme. Make sure you uninstall the AUR package before you build from source.

It's pretty buggy if your framegen multiplier is too high, or your fps is too low. The entire ImGui overlay kinda explodes, followed by a game crash. I tested on my end with 2 games (STRAFTAT and Deep Rock Galactic) and it seemed somewhat stable with both lsfg-vk and vkBasalt_overlay running. I did not test with Nvidia.

It instantly crashed when I tried to test it with vkgears though, so it's probably hit-and-miss for some games

Let me know how it goes for you!

[the-cave-dweller]

Huge thanks 😀, will give it a try

[the-cave-dweller]

It works!, thanks for taking the time, much appreciated, possible Will be merged to the main branch eventually?

[Boux]

@the-cave-dweller i'm not yet sure how stable this is, I will merge it eventually once i test it with a ton of games, lsfg-vk on its own is super unstable on my setup, so it's hard to test.