lsfg-vk

Lossless Scaling is a Windows-exclusive program featuring various algorithms for scaling and interpolating programs.

lsfg-vk is a Vulkan layer that hooks into Vulkan applications and generates additional frames using Lossless Scaling's frame generation algorithm.

Caution

You are reading the README for the upcoming version 2.0 of lsfg-vk. For the stable version 1.x, please read here

Installation

Tip

If you are on a Steam Deck or similar handheld, consider using the Decky plugin for lsfg-vk. This is an easy way to install and configure lsfg-vk on the Steam Deck. Please keep in mind that it is not officially supported and support questions should be directed to the plugin's repository & discord.

1. Before proceeding, please make sure you have Lossless Scaling downloaded on Steam.
2. Head to the GitHub Releases and download the file named "lsfg-vk-2.0.0-x86_64.tar.xz".
3. Open a terminal in the folder where you downloaded the file and run the following:

tar -xvf lsfg-vk-2.0.0-linux.tar.xz -C ~/.local

This will extract lsfg-vk to ~/.local. Please keep track of the files that were extracted, in case you want to uninstall lsfg-vk later.

4. The graphical interface requires Qt6 and Qt6 Quick in order to run. If you do not have these installed, install the following packages:

sudo apt install qt6-qpa-plugins libqt6quick6 qml6-module-qtquick-controls qml6-module-qtquick-layouts qml6-module-qtquick-window qml6-module-qtquick-dialogs # On Debian/Ubuntu-based systems
sudo pacman -S qt6-declarative qt6-base # On Arch-based systems
sudo dnf install qt6-qtdeclarative qt6-qtbase # On Fedora

5. (Optional) If you wish to use lsfg-vk within Flatpak applications, see the Flatpak Guide.

Usage

In order to start using lsfg-vk, you will need to configure it. This can either be done using the GUI application, or manually.

Graphical Configuration

Start 'lsfg-vk Configuration Window' from your application launcher, or run ~/.local/bin/lsfg-vk-ui in a terminal:

• On the left side, you will see a list of profiles. Each profile has its own settings.
• All properties in the "Global Settings" section apply to all profiles.
  • Should Lossless Scaling be installed in a non-standard location, you can specify the path here.
• Select a profile and configure the "Profile Settings" section to your liking.
  • When editing the "Active In" list, you can add a game using its executable name (e.g. Game.exe, mpv).
• Please see the documentation for detailed information on each setting.
• Once you are done configuring, simply starting a game that matches one of the profiles will automatically apply the settings.

Manual Configuration

The default configuration is located in ~/.config/lsfg-vk/conf.toml. It will be created automatically when any Vulkan application is started.

• In the [global] section, you can change where Lossless Scaling is installed, as well as other global settings.
• Each profile is defined in its own [[profile]] section.
• The active_in array/string defines which applications the profile is active in. You can add applications using their executable name (e.g. Game.exe, mpv).
• Please see the documentation for detailed information on each setting.
• Once you are done configuring, simply starting a game that matches one of the profiles will automatically apply the settings.

You can validate the configuration using lsfg-vk-cli:

~/.local/bin/lsfg-vk-cli validate

Benchmarking Mode

You can run a frame generation benchmark using lsfg-vk-cli:

~/.local/bin/lsfg-vk-cli benchmark

By default, the benchmark will run for 10 seconds. Add -h to see all available benchmarking options.

Support and Troubleshooting

If you encounter any issues or have questions regarding lsfg-vk, read through the Troubleshooting documentation page or join the Discord server for assistance.