KWin refusing to start up after login all of a sudden?

Hi guys- just as the title says. Tried to login today and my kde desktop was completely borked, windows wouldn’t move, wallpaper missing, etc. Opened up Garuda Assistant to see this:

Jun 24 02:47:49 Lettuce-Desktop systemd[5232]: Failed to start KDE Window Manager.
Jun 24 02:47:49 Lettuce-Desktop systemd[5232]: Failed to start KDE Window Manager.
Jun 24 02:47:49 Lettuce-Desktop systemd[5232]: Failed to start KDE Window Manager.
Jun 24 02:47:49 Lettuce-Desktop systemd[5232]: Failed to start KDE Window Manager.
Jun 24 02:47:49 Lettuce-Desktop systemd[5232]: Failed to start KDE Window Manager.
Jun 24 02:47:50 Lettuce-Desktop systemd[5232]: Failed to start KDE Window Manager.

That can’t be good!

Strangely enough, restoring to a snapshot even 2 days old didn’t do anything. Stumped me. Any ideas?

garuda-inxi:

System:
  Kernel: 6.6.35-2-lts arch: x86_64 bits: 64 compiler: gcc v: 14.1.1
    clocksource: tsc avail: hpet,acpi_pm
    parameters: BOOT_IMAGE=/@/boot/vmlinuz-linux-lts
    root=UUID=abecce04-e79f-405d-969b-540110b145d8 rw rootflags=subvol=@
    quiet resume=UUID=4cc721d1-5ee8-4a1c-938e-e121947517a5 loglevel=3 ibt=off
  Desktop: KDE Plasma v: 6.1.0 tk: Qt v: N/A info: frameworks v: 6.3.0 vt: 2
    dm: SDDM Distro: Garuda base: Arch Linux
Machine:
  Type: Desktop System: Micro-Star product: MS-7A34 v: 4.0
    serial: <superuser required>
  Mobo: Micro-Star model: B350 GAMING PLUS (MS-7A34) v: 4.0
    serial: <superuser required> uuid: <superuser required>
    UEFI: American Megatrends v: M.HS date: 11/04/2021
Battery:
  Device-1: hidpp_battery_0 model: Logitech G305 Lightspeed Wireless Gaming
    Mouse serial: <filter> charge: 100% (should be ignored) rechargeable: yes
    status: discharging
CPU:
  Info: model: AMD Ryzen 5 1600X bits: 64 type: MT MCP arch: Zen level: v3
    note: check built: 2017-19 process: GF 14nm family: 0x17 (23) model-id: 1
    stepping: 1 microcode: 0x8001138
  Topology: cpus: 1x cores: 6 tpc: 2 threads: 12 smt: enabled cache:
    L1: 576 KiB desc: d-6x32 KiB; i-6x64 KiB L2: 3 MiB desc: 6x512 KiB
    L3: 16 MiB desc: 2x8 MiB
  Speed (MHz): avg: 3600 min/max: 2200/3600 boost: enabled scaling:
    driver: acpi-cpufreq governor: performance cores: 1: 3600 2: 3600 3: 3600
    4: 3600 5: 3600 6: 3600 7: 3600 8: 3600 9: 3600 10: 3600 11: 3600 12: 3600
    bogomips: 86412
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
  Vulnerabilities: <filter>
Graphics:
  Device-1: Intel DG2 [Arc A770] vendor: Acer Incorporated ALI driver: i915
    v: kernel arch: Gen-12.7 code: Alchemist process: TSMC n6 (7nm) built: 2022+
    pcie: gen: 1 speed: 2.5 GT/s lanes: 1 ports: active: DP-1,DP-3 empty: DP-2,
    DP-4, HDMI-A-1, HDMI-A-2, HDMI-A-3 bus-ID: 28:00.0 chip-ID: 8086:56a0
    class-ID: 0300
  Device-2: Logitech HD Pro Webcam C920 driver: snd-usb-audio,uvcvideo
    type: USB rev: 2.0 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 6-2:2
    chip-ID: 046d:082d class-ID: 0102 serial: <filter>
  Display: x11 server: X.Org v: 21.1.13 with: Xwayland v: 24.1.0 driver: X:
    loaded: modesetting alternate: fbdev,intel,vesa dri: iris gpu: i915
    display-ID: :0 screens: 1
  Screen-1: 0 s-res: 3840x1080 s-dpi: 96 s-size: 1016x285mm (40.00x11.22")
    s-diag: 1055mm (41.54")
  Monitor-1: DP-1 pos: right model: Dell P2412H serial: <filter> built: 2012
    res: 1920x1080 hz: 60 dpi: 92 gamma: 1.2 size: 531x299mm (20.91x11.77")
    diag: 609mm (24") ratio: 16:9 modes: max: 1920x1080 min: 720x400
  Monitor-2: DP-3 pos: primary,left model: Acer XF243Y P serial: <filter>
    built: 2023 res: 1920x1080 dpi: 93 gamma: 1.2 size: 527x296mm (20.75x11.65")
    diag: 604mm (23.8") ratio: 16:9 modes: max: 1920x1080 min: 720x400
  API: EGL v: 1.5 hw: drv: intel iris platforms: device: 0 drv: iris
    device: 1 drv: swrast surfaceless: drv: iris x11: drv: iris
    inactive: gbm,wayland
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 24.1.2-arch1.1
    glx-v: 1.4 direct-render: yes renderer: Mesa Intel Arc A770 Graphics (DG2)
    device-ID: 8086:56a0 memory: 15.53 GiB unified: no
  API: Vulkan v: 1.3.279 layers: 10 device: 0 type: discrete-gpu name: Intel
    Arc A770 Graphics (DG2) driver: mesa intel v: 24.1.2-arch1.1
    device-ID: 8086:56a0 surfaces: xcb,xlib device: 1 type: cpu name: llvmpipe
    (LLVM 17.0.6 256 bits) driver: mesa llvmpipe v: 24.1.2-arch1.1 (LLVM
    17.0.6) device-ID: 10005:0000 surfaces: xcb,xlib
Audio:
  Device-1: Creative Labs CA0106/CA0111 [SB Live!/Audigy/X-Fi Series]
    driver: snd_ca0106 v: kernel bus-ID: 22:00.0 chip-ID: 1102:0007
    class-ID: 0401
  Device-2: Intel DG2 Audio vendor: Acer Incorporated ALI
    driver: snd_hda_intel v: kernel pcie: gen: 1 speed: 2.5 GT/s lanes: 1
    bus-ID: 29:00.0 chip-ID: 8086:4f90 class-ID: 0403
  Device-3: AMD Family 17h HD Audio vendor: Micro-Star MSI
    driver: snd_hda_intel v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16
    bus-ID: 2b:00.3 chip-ID: 1022:1457 class-ID: 0403
  Device-4: C-Media Antlion USB adapter
    driver: hid-generic,snd-usb-audio,usbhid type: USB rev: 1.1 speed: 12 Mb/s
    lanes: 1 mode: 1.1 bus-ID: 4-9:3 chip-ID: 0d8c:002c class-ID: 0300
    serial: <filter>
  Device-5: Logitech HD Pro Webcam C920 driver: snd-usb-audio,uvcvideo
    type: USB rev: 2.0 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 6-2:2
    chip-ID: 046d:082d class-ID: 0102 serial: <filter>
  API: ALSA v: k6.6.35-2-lts status: kernel-api tools: N/A
  Server-1: sndiod v: N/A status: off tools: aucat,midicat,sndioctl
  Server-2: PipeWire v: 1.0.7 status: active with: 1: pipewire-pulse
    status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
    4: pw-jack type: plugin tools: pactl,pw-cat,pw-cli,wpctl
Network:
  Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
    vendor: Micro-Star MSI driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s
    lanes: 1 port: e000 bus-ID: 23:00.0 chip-ID: 10ec:8168 class-ID: 0200
  IF: enp35s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
  Info: services: NetworkManager, smbd, systemd-timesyncd
Drives:
  Local Storage: total: 3.64 TiB used: 1.3 TiB (35.8%)
  SMART Message: Required tool smartctl not installed. Check --recommends
  ID-1: /dev/sda maj-min: 8:0 vendor: Western Digital
    model: WD10EZEX-22MFCA0 size: 931.51 GiB block-size: physical: 4096 B
    logical: 512 B speed: 6.0 Gb/s tech: HDD rpm: 7200 serial: <filter>
    fw-rev: 1A01 scheme: GPT
  ID-2: /dev/sdb maj-min: 8:16 vendor: Western Digital
    model: WDS100T2B0B-00YS70 size: 931.51 GiB block-size: physical: 512 B
    logical: 512 B speed: 6.0 Gb/s tech: SSD serial: <filter> fw-rev: 20WD
    scheme: GPT
  ID-3: /dev/sdc maj-min: 8:32 vendor: Seagate model: ST2000LM009-1R9174
    size: 1.82 TiB block-size: physical: 4096 B logical: 512 B type: USB
    rev: 3.2 spd: 5 Gb/s lanes: 1 mode: 3.2 gen-1x1 tech: HDD rpm: 5400
    serial: <filter> fw-rev: 0001 scheme: MBR
Partition:
  ID-1: / raw-size: 914.1 GiB size: 914.1 GiB (100.00%)
    used: 795.32 GiB (87.0%) fs: btrfs dev: /dev/sdb2 maj-min: 8:18
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
    used: 584 KiB (0.2%) fs: vfat dev: /dev/sdb1 maj-min: 8:17
  ID-3: /home raw-size: 914.1 GiB size: 914.1 GiB (100.00%)
    used: 795.32 GiB (87.0%) fs: btrfs dev: /dev/sdb2 maj-min: 8:18
  ID-4: /var/log raw-size: 914.1 GiB size: 914.1 GiB (100.00%)
    used: 795.32 GiB (87.0%) fs: btrfs dev: /dev/sdb2 maj-min: 8:18
  ID-5: /var/tmp raw-size: 914.1 GiB size: 914.1 GiB (100.00%)
    used: 795.32 GiB (87.0%) fs: btrfs dev: /dev/sdb2 maj-min: 8:18
Swap:
  Kernel: swappiness: 133 (default 60) cache-pressure: 100 (default) zswap: no
  ID-1: swap-1 type: zram size: 15.56 GiB used: 0 KiB (0.0%) priority: 100
    comp: zstd avail: lzo,lzo-rle,lz4,lz4hc,842 max-streams: 12 dev: /dev/zram0
  ID-2: swap-2 type: partition size: 17.12 GiB used: 0 KiB (0.0%)
    priority: -2 dev: /dev/sdb3 maj-min: 8:19
Sensors:
  System Temperatures: cpu: 46.2 C mobo: 34.0 C
  Fan Speeds (rpm): fan-1: 1506 fan-2: 1475 fan-3: 833 fan-4: 0 fan-5: 795
    fan-6: 991
  Power: 12v: N/A 5v: N/A 3.3v: 3.39 vbat: 3.31
Info:
  Memory: total: 16 GiB available: 15.56 GiB used: 2.04 GiB (13.1%)
  Processes: 323 Power: uptime: 9m states: freeze,mem,disk suspend: deep
    avail: s2idle wakeups: 0 hibernate: platform avail: shutdown, reboot,
    suspend, test_resume image: 6.21 GiB services: org_kde_powerdevil,upowerd
    Init: systemd v: 256 default: graphical tool: systemctl
  Packages: 1838 pm: pacman pkgs: 1809 libs: 535 tools: yay pm: flatpak
    pkgs: 29 Compilers: clang: 17.0.6 gcc: 14.1.1 Shell: garuda-inxi
    default: Bash v: 5.2.26 running-in: konsole inxi: 3.3.35
Garuda (2.6.26-1):
  System install date:     2023-12-05
  Last full system update: 2024-06-24
  Is partially upgraded:   No
  Relevant software:       snapper NetworkManager dracut
  Windows dual boot:       No/Undetected
  Failed units:            


First see if this restarts kwin:

kwin-wayland --replace

Command not found

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