Cannot launch games with dedicated AMD GPU

[aspersum]

Hello. Sorry if anything is missing, I’m not really sure what to include and fairly new to Linux.
I’ve been meaning to try gaming on Linux and went with openSUSE Tumbleweed as I was happy with it on my old laptop and never had issues.
However, it appears there’s an issue with the GPU configuration. I cannot launch games using the dedicated GPU. As a result, they default to integrated graphics and more graphic-intensive games become unplayable (97% CPU usage on every core, <1 fps). Forcing them to use the dedicated GPU at launch simply prevents them from even starting.
The GPU is detected by openSUSE as it shows up under System Settings > About this System. Not sure what else to check.
I read online about vulkaninfo : the GPU does not show up. vkcube defaults to the CPU.
I’m honestly lost as to where to even begin to troubleshoot this. Sorry if this post is a mess.

Here are the details from the “About this System” page :

Operating System: openSUSE Tumbleweed 20251216
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.21.0
Qt Version: 6.10.1
Kernel Version: 6.18.1-1-default (64-bit)
Graphics Platform: X11
Processors: 16 × AMD Ryzen 7 7800X3D 8-Core Processor
Memory: 32 GiB of RAM (30.4 GiB usable)
Graphics Processor 1: AMD Radeon RX 9070 XT
Graphics Processor 2: AMD Ryzen 7 7800X3D 8-Core Processor
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7E81
System Version: 1.0

[knurpht]

Hi, welcome to these forums.

Please post output of inxi -Gaz in preformatted text ( </> in the editor ).
If I were you I would , from the login screen, pick the Plasma Wayland session.

Please also explain what you tried so far

[aspersum]

Hi, sorry for the late reply, I was asleep.
I switched to Plasma Wayland as you suggested and did inxi -Gaz, here’s the output :

Graphics:
  Device-1: Advanced Micro Devices [AMD/ATI] Navi 48 [Radeon RX 9070/9070
    XT/9070 GRE] vendor: ASRock driver: amdgpu v: kernel arch: RDNA-4
    code: Navi-4x process: TSMC n4 (4nm) built: 2025+ pcie: gen: 5
    speed: 32 GT/s lanes: 16 ports: active: DP-3 empty: DP-1, DP-2, HDMI-A-1,
    Writeback-1 bus-ID: 03:00.0 chip-ID: 1002:7550 class-ID: 0300
  Device-2: Advanced Micro Devices [AMD/ATI] Raphael vendor: Micro-Star MSI
    driver: amdgpu v: kernel arch: RDNA-2 code: Navi-2x process: TSMC n7 (7nm)
    built: 2020-22 pcie: gen: 4 speed: 16 GT/s lanes: 16 ports: active: none
    empty: DP-4, DP-5, DP-6, HDMI-A-2, Writeback-2 bus-ID: 15:00.0
    chip-ID: 1002:164e class-ID: 0300 temp: 30.0 C
  Display: wayland server: X.org v: 1.21.1.21 with: Xwayland v: 24.1.8
    compositor: kwin_wayland driver: X: loaded: amdgpu
    unloaded: modesetting,vesa alternate: fbdev dri: radeonsi gpu: amdgpu
    display-ID: 0
  Monitor-1: DP-3 model: M27 serial: <filter> built: 2025 res:
    mode: 2560x1440 hz: 60 scale: 100% (1) dpi: 108 gamma: 1.2
    size: 597x336mm (23.5x13.23") diag: 685mm (27") ratio: 16:9 modes:
    max: 2560x1440 min: 640x480
  API: EGL v: 1.5 hw: drv: amd radeonsi platforms: device: 0 drv: radeonsi
    device: 1 drv: radeonsi device: 2 drv: swrast gbm: drv: radeonsi
    surfaceless: drv: radeonsi wayland: drv: radeonsi x11: drv: radeonsi
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 25.3.1 glx-v: 1.4
    direct-render: yes renderer: AMD Radeon RX 9070 XT (radeonsi gfx1201 LLVM
    21.1.6 DRM 3.64 6.18.1-1-default) device-ID: 1002:7550 memory: 15.62 GiB
    unified: no display-ID: :1.0
  API: Vulkan v: 1.4.335 layers: 6 device: 0 type: cpu name: llvmpipe (LLVM
    21.1.6 256 bits) driver: mesa llvmpipe v: 25.3.1 (LLVM 21.1.6)
    device-ID: 10005:0000 surfaces: N/A
  Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
    de: kscreen-console,kscreen-doctor wl: wayland-info
    x11: xdpyinfo, xprop, xrandr

Actually, thanks to you, I was able to fix it on my own. I read through the output and it seems the issue was only with Vulkan. So I looked it up and it seems I was missing libvulkan_radeon, I only had libvulkan_radeon-32bit installed for some reason. I can’t believe it was that simple.

Thank you very much for the help !