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steam-vulkan-amdgpu.md

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steam, amdgpu, vulkan

TODO: try gamemode - https://github.com/FeralInteractive/gamemode

enable multilib in /etc/pacman.conf:

[multilib]
Include = /etc/pacman.d/mirrorlist

install drivers and steam, GPU: AMD R9 270 - Southern Islands (SI):

pacman -S xf86-video-amdgpu mesa lib32-fontconfig lib32-mesa lib32-systemd vulkan-tools steam

add vars to /etc/environment

AMD_VULKAN_ICD=RADV
XDG_RUNTIME_DIR=/run/user/1000

load modules, prioritize amdgpu /etc/mkinitcpio.conf:

MODULES=(amdgpu radeon)

mkinitcpio -p linux

check current driver lspci -k | less:

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Curacao PRO [Radeon R7 370 / R9 270/370 OEM]
        Subsystem: PC Partner Limited / Sapphire Technology Device e271
        Kernel driver in use: radeon # <<< should be amdgpu instead
        Kernel modules: radeon, amdgpu

check vulkaninfo output, shouldn't produce error below:

ERROR at /build/vulkan-tools/src/Vulkan-Tools-1.2.199/vulkaninfo/vulkaninfo.h:248:vkEnumeratePhysicalDevices failed with ERROR_INITIALIZATION_FAILED

check module parameters:

sudo dmesg | grep -E '(cik|si)_support'
[    1.407151] amdgpu 0000:01:00.0: amdgpu: Use radeon.si_support=0 amdgpu.si_support=1 to override.

set module parameters in kernel cmd /etc/default/grub:

GRUB_CMDLINE_LINUX_DEFAULT="... radeon.si_support=0 amdgpu.si_support=1"

sudo grub-mkconfig -o /boot/grub/grub.cfg and reboot

possible cmd start parameters:

LD_PRELOAD=/lib64/libSDL2-2.0.so.0 SDL_VIDEODRIVER=wayland DRI_PRIME=1 %command% -vulkan
LD_PRELOAD=/lib64/libSDL2-2.0.so.0 SDL_VIDEODRIVER=x11 DRI_PRIME=1 %command%

links: https://wiki.archlinux.org/title/AMDGPU#Enable_Southern_Islands_(SI)_and_Sea_Islands_(CIK)_support https://wiki.archlinux.org/title/steam#Installation https://wiki.archlinux.org/title/Vulkan#AMDGPU_-_ERROR_INITIALIZATION_FAILED_after_vulkaninfo