Can't see hardware acceleration in Arch Linux Nvidia Plasma Wayland

[LibertyGM]

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Describe the bug Can't see hardware acceleration in Arch Linux Nvidia Plasma Wayland

Steps to reproduce

1. Starting Moonlight.

Affected games Happens to all games.

Moonlight settings (please complete the following information)

• Changed only the encoding mode to Hardware H265.
• Does the problem still occur after reverting settings back to default? − Yes

Client PC details (please complete the following information)

• OS: Arch Linux Plasma
• Moonlight Version: 4.2.1
• GPU: Nvidia 3070Ti

Server PC details (please complete the following information)

• OS: Windows 11
• GeForce Experience version: 3.25.1.27
• Nvidia GPU driver: 516.94
• Antivirus and firewall software: No

[cgutman]

Please run Moonlight from the terminal to get the log output and post it here.

Are you using the Snap, Flatpak, AppImage, or AUR package of Moonlight?

[LibertyGM]

I recorded a video of this and a log of how the error occurs. X11 Session

https://youtu.be/LLkWKWruZgY log.txt

[cgutman]

It looks like your logs are switched between #867 and #866, but it seems your problem here is that you need to install the libva-nvidia-driver package to allow use of NVDEC through VAAPI for Wayland, since VDPAU is only supported on X11.

Alternatively, you can also install ffmpeg-cuda and ffnvcodec-headers, then if you rebuild Moonlight, it should enable the CUDA codepath that doesn't require VAAPI.

[xangelix]

It looks like your logs are switched between #867 and #866, but it seems your problem here is that you need to install the libva-nvidia-driver package to allow use of NVDEC through VAAPI for Wayland, since VDPAU is only supported on X11.

Alternatively, you can also install ffmpeg-cuda and ffnvcodec-headers, then if you rebuild Moonlight, it should enable the CUDA codepath that doesn't require VAAPI.

my setup is a mess right now, but for anyone in the future, it wouldn't even open for me without libva-nvidia-driver

00:00:00 - SDL Info (0): Compiled with SDL 2.24.0
00:00:00 - SDL Info (0): Running with SDL 2.24.0
00:00:00 - Qt Info: No translation available for  "en_US"
00:00:00 - SDL Info (0): Detected Wayland
00:00:00 - Qt Warning: qrc:/gui/main.qml:12:1: QML ApplicationWindow: ToolTip must be attached to an Item
00:00:24 - Qt Info: Found "gamecontrollerdb.txt" at ":/data/gamecontrollerdb.txt"
00:00:24 - SDL Info (0): Loaded 213 new gamepad mappings
00:00:24 - SDL Info (0): V-sync disabled
Failed to create dedicated X11 display!
fish: Job 1, 'moonlight' terminated by signal SIGSEGV (Address boundary error)

everything good now though!