[Feature Request]Set GPU via VKDeviceChooser

[SaltSouls]

System Information

• SteamTinkerLaunch version: v12.12
• Distribution: hyprland

Feature Description

It would be nice to add the option to select which GPU you wanted the game to use using VKDeviceChooser. Right now I have to set it manually in all games using the launch options, but if it were a setting that could be toggled in STL, then I could have it apply across all games, ensuring that they all run well and on the correct GPU.

[sonic2kk]

This sounds useful. Can you list the command-line option for how to do this so we can see what env var we need to export?

Also, v12.12 is extremely out-of-date, almost two years out of date. Please use the latest master branch commit.

[SaltSouls]

This sounds useful. Can you list the command-line option for how to do this so we can see what env var we need to export?

Also, v12.12 is extremely out-of-date, almost two years out of date. Please use the latest master branch commit.

Sorry about the late reply. The holidays are busy as hell. The commands are as such:
ENABLE_DEVICE_CHOOSER_LAYER=1 VULKAN_DEVICE_INDEX=1
I should note that the device index is a per PC thing, and will start at 0. Not sure if there would be a way to bring up the GPU based on the index and just let people pick the GPU from a drop down menu or something, but at least having these options will make things much easier.

[sonic2kk]

No problem, thanks for the additional info!

I will check if there is a way we can list vulkan devices and maybe get an index that way, and then internally map the GPU name to the index. For example if we can get them like "INTEL-IGPU:0", "AMD-DGPU:1", we can split on the : and map that way, displaying the GPU name in the drop-down. But this may not be possible, and in a worst case we can just let the user enter the index (defaulting to 0, and only exporting if the ENABLE_DEVICE_CHOOSER_LAYER option is on).

Seems like a useful option, I'll look into adding this when I have some time.