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Internetperson-dev/Lossless Scaling Linux Flatpak Test

Created July 15, 2025 11:26
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Lossless Scaling Linux Flatpak Test
LSFG_DLL_PATH="/home/ram/.var/app/com.valvesoftware.Steam/.steam/debian-installation/steamapps/common/Lossless Scaling/Lossless.dll" ENABLE_LSFG=1 LSFG_MULTIPLIER=3 vkcube
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Internetperson-dev commented Jul 15, 2025

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You can see the effects more clearly with LSFG_DLL_PATH="/home/ram/.var/app/com.valvesoftware.Steam/.steam/debian-installation/steamapps/common/Lossless Scaling/Lossless.dll" ENABLE_LSFG=1 LSFG_MULTIPLIER=100 vkcube

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Internetperson-dev commented Jul 15, 2025 •
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Flatpak support (Title screens should break frame rate caps, artifacts may show on menu and input latency may increase to show it's working)

mkdir -p ~/.var/app/com.valvesoftware.Steam/lib
mkdir -p ~/.var/app/com.valvesoftware.Steam/data/Steam/steamapps/common/Lossless\ Scaling
mkdir -p ~/.var/app/com.valvesoftware.Steam/config/vulkan/implicit_layer.d

cp ~/.local/lib/liblsfg-vk.so ~/.var/app/com.valvesoftware.Steam/lib/
cp ~/.local/share/Steam/steamapps/common/Lossless\ Scaling/Lossless.dll ~/.var/app/com.valvesoftware.Steam/data/Steam/steamapps/common/Lossless\ Scaling/
cp ~/.local/share/vulkan/explicit_layer.d/VkLayer_LS_frame_generation.json ~/.var/app/com.valvesoftware.Steam/config/vulkan/implicit_layer.d/

doas flatpak override --user com.valvesoftware.Steam --filesystem=~/.var/app/com.valvesoftware.Steam:ro

doas flatpak override com.valvesoftware.Steam --env=ENABLE_LSFG=1 --env=LSFG_MULTIPLIER=2 --env=LSFG_DLL_PATH="Z:\home\ram\.var\app\com.valvesoftware.Steam\data\Steam\steamapps\common\Lossless Scaling\Lossless.dll" --env=LSFG_LOG_FILE=log --filesystem=/.var/app/com.valvesoftware.Steam/lib --filesystem=/.var/app/com.valvesoftware.Steam/config/vulkan/implicit_layer.d

flatpak run --env=VK_LOADER_DEBUG=all com.valvesoftware.Steam

Use LSFG_DLL_PATH="/home/ram/.var/app/com.valvesoftware.Steam/.steam/debian-installation/steamapps/common/Lossless Scaling/Lossless.dll" ENABLE_LSFG=1 LSFG_MULTIPLIER=2 %command% in the launch options.

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Internetperson-dev commented Jul 17, 2025 •
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LSFG_DLL_PATH="/home/ram/.var/app/com.valvesoftware.Steam/.steam/debian-installation/steamapps/common/Lossless Scaling/Lossless.dll" ENABLE_LSFG=1 LSFG_PERF_MODE=1 LSFG_MULTIPLIER=1.5 %command% +com_skipIntroVideo 1

Fractional values also seem to work?

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Internetperson-dev commented Jul 5, 2026

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  1. No, it does not support fractional values
  2. This was for version 1.0, version 2.0 users should follow https://github.com/PancakeTAS/lsfg-vk/blob/develop/docs/Flatpak-Guide.md
  3. You can add the launch options into Flatseal to have them automatically apply.

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