PC crasha quando jogo (Nobara 43 KDE)

Boa noite a todos! Gostaria de ver se alguém me dá uma luz aqui.

Entrei para o mundo Linux há 1 mês mais ou menos, inicialmente no Fedora 43 KDE Plasma edition. Troquei meu SSD para outro enquanto mantive o antigo como Windows, pois ainda dependo dele para alguns aplicativos. O problema é que, ao jogar alguma coisa, a qualquer momento acontece uma travada no jogo e alguns segundos depois, o sistema começa a “desmontar”: o jogo fecha, a barra de tarefas some, o background some, até que as telas ficam pretas e a única forma de voltar ao normal é dando REISUB.

Tentei algumas coisas para resolver desde então, até troquei para o Nobara já que ele promete vier com os drivers da NVIDIA todos funcionando out-of-the-box, mas não resolveu ainda, no máximo me comprou tempo (ao invés de crashar em meia hora, agora crasha com 3 horas de jogo).

Não acredito que seja erro de hardware (exceto talvez pelo SSD, o único hardware exclusivo ao Nobara), porque fazendo as mesmas coisas no Windows não crasham o sistema. E erro de memória também não acredito ser o culpado, pois tenho 64GB de RAM e tentando forçar a VRAM da GPU abrindo várias janelas do Firefox estouram fácil a barreira da VRAM, mas o sistema aguenta (só perde desempenho e fica com alguns artifícios visuais, mas aguenta)

Segue abaixo logs do inxi -Fzxx e do nvidia-smi, a essa altura do campeonato, qualquer sugestão já ajudaria!

inxi -Fzxx
System:
  Kernel: 6.18.3-201.nobara.fc43.x86_64 arch: x86_64 bits: 64 compiler: gcc
    v: 15.2.1
  Desktop: KDE Plasma v: 6.5.4 tk: Qt v: N/A wm: kwin_wayland dm: SDDM
    Distro: Nobara Linux 43 (KDE Plasma Desktop Edition) base: Fedora 43
Machine:
  Type: Desktop System: BIOSTAR product: B660MX-E v: N/A
    serial: <superuser required> Chassis: type: 3 serial: <superuser required>
  Mobo: BIOSTAR model: B660MX-E serial: <superuser required> UEFI: American
    Megatrends LLC. v: 5.27 date: 05/08/2025
Battery:
  Device-1: ps-controller-battery-58:10:31:bc:59:cd model: N/A serial: N/A
    charge: N/A status: charging
CPU:
  Info: 6-core model: 12th Gen Intel Core i5-12400F bits: 64 type: MT MCP
    arch: Alder Lake rev: 5 cache: L1: 480 KiB L2: 7.5 MiB L3: 18 MiB
  Speed (MHz): avg: 801 min/max: 800/5600 cores: 1: 801 2: 801 3: 801 4: 801
    5: 801 6: 801 7: 801 8: 801 9: 801 10: 801 11: 801 12: 801 bogomips: 59904
  Flags-basic: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Graphics:
  Device-1: NVIDIA AD104 [GeForce RTX 4060 Ti] driver: nvidia v: 580.119.02
    arch: Lovelace pcie: speed: 2.5 GT/s lanes: 8 ports: active: DP-1,HDMI-A-1
    empty: DP-2,DP-3 bus-ID: 01:00.0 chip-ID: 10de:2788
  Display: wayland server: Xwayland v: 24.1.9 compositor: kwin_wayland
    driver: X: loaded: nvidia unloaded: modesetting
    alternate: fbdev,nouveau,nv,vesa gpu: nv_platform,nvidia,nvidia-nvswitch
    d-rect: 4480x2520 display-ID: 0
  Monitor-1: DP-1 pos: primary,top-left model: AOC Q27G4 res: 2560x1440
    hz: 180 dpi: 109 diag: 685mm (27")
  Monitor-2: HDMI-A-1 pos: bottom-r model: HORIZONZPRO27 res: 1920x1080
    hz: 143 dpi: 82 diag: 685mm (27")
  API: EGL v: 1.5 platforms: device: 0 drv: nvidia device: 2 drv: swrast
    gbm: drv: nvidia surfaceless: drv: nvidia wayland: drv: nvidia x11:
    drv: nvidia inactive: device-1
  API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: nvidia mesa v: 580.119.02
    glx-v: 1.4 direct-render: yes renderer: NVIDIA GeForce RTX 4060 Ti/PCIe/SSE2
    display-ID: :0.0
  API: Vulkan v: 1.4.328 surfaces: N/A device: 0 type: discrete-gpu
    driver: nvidia device-ID: 10de:2788 device: 1 type: cpu
    driver: mesa llvmpipe device-ID: 10005:0000
  Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
    de: kscreen-console,kscreen-doctor gpu: lact, nvidia-settings, nvidia-smi
    wl: wayland-info x11: xdriinfo, xdpyinfo, xprop, xrandr
Audio:
  Device-1: Intel Alder Lake-S HD Audio vendor: Biostar Microtech Intl Corp
    driver: snd_hda_intel v: kernel bus-ID: 00:1f.3 chip-ID: 8086:7ad0
  Device-2: NVIDIA AD104 High Definition Audio driver: snd_hda_intel
    v: kernel pcie: speed: 16 GT/s lanes: 8 bus-ID: 01:00.1 chip-ID: 10de:22bc
  Device-3: Sony DualSense wireless controller (PS5)
    driver: playstation,snd-usb-audio,usbhid type: USB rev: 2.0 speed: 480 Mb/s
    lanes: 1 bus-ID: 1-4:3 chip-ID: 054c:0ce6
  API: ALSA v: k6.18.3-201.nobara.fc43.x86_64 status: kernel-api
  Server-1: PipeWire v: 1.4.9 status: active with: 1: pipewire-pulse
    status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
    4: pw-jack type: plugin
Network:
  Device-1: Intel Ethernet I219-V driver: e1000e v: kernel port: N/A
    bus-ID: 00:1f.6 chip-ID: 8086:1a1d
  IF: eno1 state: up speed: 100 Mbps duplex: full mac: <filter>
  Device-2: TP-Link TL-WN823N v2/v3 [Realtek RTL8192EU] driver: rtl8xxxu
    type: USB rev: 2.1 speed: 480 Mb/s lanes: 1 bus-ID: 1-2:2 chip-ID: 2357:0109
  IF: wlp0s20f0u2 state: down mac: <filter>
  Device-3: Sony DualSense wireless controller (PS5)
    driver: playstation,snd-usb-audio,usbhid type: USB rev: 2.0 speed: 480 Mb/s
    lanes: 1 bus-ID: 1-4:3 chip-ID: 054c:0ce6
Drives:
  Local Storage: total: 2.3 TiB used: 587.78 GiB (25.0%)
  ID-1: /dev/nvme0n1 vendor: Kingston model: SKC3000D2048G size: 1.86 TiB
    speed: 63.2 Gb/s lanes: 4 serial: <filter> temp: 52.9 C
  ID-2: /dev/sda vendor: Kingston model: SA400S37480G size: 447.13 GiB
    speed: 6.0 Gb/s serial: <filter>
Partition:
  ID-1: / size: 1.86 TiB used: 586.8 GiB (30.8%) fs: btrfs dev: /dev/nvme0n1p3
  ID-2: /boot size: 1.9 GiB used: 980.6 MiB (50.4%) fs: ext4
    dev: /dev/nvme0n1p2
  ID-3: /boot/efi size: 598.8 MiB used: 19.3 MiB (3.2%) fs: vfat
    dev: /dev/nvme0n1p1
  ID-4: /home size: 1.86 TiB used: 586.8 GiB (30.8%) fs: btrfs
    dev: /dev/nvme0n1p3
Swap:
  ID-1: swap-1 type: zram size: 31.31 GiB used: 0 KiB (0.0%) priority: 100
    dev: /dev/zram0
Sensors:
  System Temperatures: cpu: 42.0 C mobo: N/A
  Fan Speeds (rpm): N/A
Info:
  Memory: total: 64 GiB available: 62.61 GiB used: 4.47 GiB (7.1%)
  Processes: 329 Power: uptime: 19m wakeups: 0 Init: systemd v: 258
    default: graphical
  Packages: pm: rpm pkgs: N/A note: see --rpm pm: flatpak pkgs: 46
    Compilers: gcc: 15.2.1 Shell: fish v: 4.2.0 running-in: konsole inxi: 3.3.39

nvidia-smi
Wed Jan  7 22:25:51 2026       
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 580.119.02             Driver Version: 580.119.02     CUDA Version: 13.0     |
+-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  Compute M. |
|                                         |                        |               MIG M. |
|=========================================+========================+======================|
|   0  NVIDIA GeForce RTX 4060 Ti     On  |   00000000:01:00.0  On |                  N/A |
|  0%   48C    P5             23W /  165W |     834MiB /   8188MiB |      2%      Default |
|                                         |                        |                  N/A |
+-----------------------------------------+------------------------+----------------------+

+-----------------------------------------------------------------------------------------+
| Processes:                                                                              |
|  GPU   GI   CI              PID   Type   Process name                        GPU Memory |
|        ID   ID                                                               Usage      |
|=========================================================================================|
|    0   N/A  N/A            1914      G   /usr/bin/kwin_wayland                   159MiB |
|    0   N/A  N/A            2018      G   /usr/bin/Xwayland                         3MiB |
|    0   N/A  N/A            2080      G   /usr/bin/plasmashell                    274MiB |
|    0   N/A  N/A            2414      G   /usr/bin/xwaylandvideobridge              2MiB |
|    0   N/A  N/A            2670      G   /usr/lib64/firefox/firefox              202MiB |
+-----------------------------------------------------------------------------------------+