Hello @mkopec, it should be noted that the error you're showing is 32 bit libva, and the library you're spot checking is 64 bit mesa. /usr/lib32/dri/radeonsi_drv_video.so should be coming from your system installed lib32-mesa package, not the Steam runtime.
Blind guess, is a runtime dependency like lib32-libva missing?
It looks like lib32-libva is installed on my system
michal@aether ~> yay -Qi lib32-libva
Installed From : multilib
Name : lib32-libva
Version : 2.22.0-1
Description : Video Acceleration (VA) API for Linux (32-bit)
Architecture : x86_64
URL : https://01.org/linuxmedia/vaapi
Licenses : MIT
Groups : None
Provides : libva-drm.so=2-32 libva-glx.so=2-32 libva-wayland.so=2-32 libva-x11.so=2-32 libva.so=2-32
Depends On : lib32-libdrm lib32-libgl lib32-libx11 lib32-libxext lib32-libxfixes lib32-wayland libva
Optional Deps : lib32-libva-intel-driver: backend for Intel GPUs (<= Haswell)
lib32-libva-mesa-driver: backend for AMD and NVIDIA GPUs [installed]
Required By : cachyos-gaming-meta proton-cachyos-slr steam
Optional For : None
Conflicts With : None
Replaces : None
Installed Size : 281.51 KiB
Packager : T.J. Townsend <[email protected]>
Build Date : Wed 07 Aug 2024 12:32:26 AM CEST
Install Date : Thu 02 Jul 2026 10:43:24 PM CEST
Install Reason : Explicitly installed
Install Script : No
Validated By : Signature
I also checked 32-bit mesa:
michal@aether ~> nm -D /usr/lib32/dri/radeonsi_drv_video.so | grep vaDriverInit
000d2c40 T __vaDriverInit_1_23@@libgallium-26.1.3-arch3.1.so
Oh, I just noticed arch has desync'd versions of libva and lib32-libva. maybe lib32-libva just needs to be updated
Yeeeah, i just updated lib32-libva and that fixed it. I had assumed that steam was using its own version, since it's present in the steam runtimes, but apparently not.
Closing as this is an Arch bug.
Nothing extracted yet.
Your system information
Please describe your issue in as much detail as possible:
Describe what you expected should happen and what did happen. Please link any large code pastes as a Github Gist
When attempting to stream games from a Linux host, with hardware encoding enabled, steam outputs the following and falls back to software x264 encoding:
This is likely because Arch updated libva recently, and does not expose the vaDriverInit_1_22 entrypoint anymore:
It would seem that libva in steam linux runtime needs updating. I tried SteamRT3 on the streaming host, but then I get authentication errors when lauching a stream, but that's a separate issue.
Steps for reproducing this issue: