[KDE crash] Kde eos default config crash

[Gek]

I was using KDE plasma with the default configuration and this evening when connecting everything was black, taskbar disappeared but windows are still here. The corner trigger also still work.

If I launch plasmashell --replace things go back to normal for few seconds before crashing back.
With thoses messages :

$ plasmashell --replace                                                                                                                                                                                                         
kf.plasma.quick: Applet preload policy set to 1
org.kde.plasma.kicker: Entry is not valid "org.kde.kontact.desktop" 0x55d8df233190
org.kde.plasma.kicker: Entry is not valid "org.kde.discover.desktop" 0x55d8df233190
org.kde.plasma.kicker: Entry is not valid "org.kde.kontact.desktop" 0x55d8df233190
org.kde.plasma.kicker: Entry is not valid "org.kde.discover.desktop" 0x55d8df233190
KCrash: Attempting to start /usr/bin/plasmashell
KCrash: Application 'plasmashell' crashing... crashRecursionCounter = 2
[1]    9625 segmentation fault (core dumped)  plasmashell --replace
$ kf.plasma.quick: Applet preload policy set to 1                                                                                                                                                                                 
org.kde.plasma.kicker: Entry is not valid "org.kde.kontact.desktop" 0x5635b9898360
org.kde.plasma.kicker: Entry is not valid "org.kde.discover.desktop" 0x5635b9898360
org.kde.plasma.kicker: Entry is not valid "org.kde.kontact.desktop" 0x5635b9898360
org.kde.plasma.kicker: Entry is not valid "org.kde.discover.desktop" 0x5635b9898360

I tryed with a fresh install and the same problem exist.

Hardware information :
https://0x0.st/8kgW.txt
Journalctl :
https://0x0.st/8kg4.txt

Install log
https://0x0.st/8kgy.txt

Partition

NAME   TYPE   SIZE PTTYPE FSTYPE
sda    disk 119,2G gpt    
├─sda1 part     1G gpt    vfat
└─sda2 part 118,2G gpt    ext4
sdb    disk 931,5G gpt    
└─sdb1 part 931,5G gpt    ext4

[frant]

Hi !
My KDE also crashed. I arrive on the desktop, I can see the apps in memory that are launched, the taskbar appear and disappear at the same time as the icons and the wallpaper, 2 or 3 times.
Finally, the taskbar, icons and wallpaper have disappeared. Launched apps are functional. I’ve installed Budgie desktop, hoping for a debug. The crash occurred after a major update today.

[frant]

ok
I used Bink’s tip and everything went back to normal.

KDE gone black after todays update:

I updated my AMD laptop today (AMD, no Intel/Nvidia) and encountered the issue. On login, KDE desktop crashes and loads a few times before finally giving up. System logs show a plasmashell segfault in libQt6Qml.so.6.9.1. In my case, I was able to resolve the issue by setting my Plasma rendering backend to the default (“Automatic”). I had set it to “Software” to address GPU memory consumption issues, impacting some applications. I reverted the Renderer to it’s default by: Editing ~/.config…

[cscs]

This can also be looked at by

kcmshell6 kcm_qtquicksettings

Just observe whether it is set to anything other than Automatic and/or if any other setting works better for you.
“Software” is to be avoided and should only be used as a sort of fallback - indeed this may be how/why it was set in the first place.

[Bink]

@cscs

“Software” is to be avoided and should only be used as a sort of fallback

“Software” mode prevented KDE from locking up most of the GPUs memory. That’s significant when using productivity applications such as Blender, or DaVinci Resolve Studio, where KDE’s greedy GPU memory consumption readily causes render failures as a result.

X11 was the other workaround, but I’m lucky if that works at all these days.

[cscs]

Sounds like you were working around a misconfiguration or a bug by disabling all desktop acceleration. Which may have been a reasonable thing to do .. but does not mean the setting is a good one to use generally.
In fact it should be avoided, as I stated above, and may cause various breakage to change the setting to anything other than auto. Just like the utility says in its header.

These settings adjust the QtQuick settings used by Plasma. Modifying these settings can break your desktop. Only adjust these settings if you know what you are doing.

[noobr]

This also happened to me, a few times since the last update.

After it happens I open krunner and killall plasmashell
—I did it twice to ensure everything plasmashell was dead-not sure if twice is necessary
after that I did the plasmashell --replace

Same symptoms my windows stay open but I lose the desktop and taskbar

I also noticed, that after this happens and I recover the desktop, I can no longer move icons between the two monitors I have.
I can create new folders files, save shortcuts to each display but I cannot move one file or folder from display 1 to display 2 or vice versa.

I would like to know how to fix that without rebooting.
Rebooting DOES fix that.

Thanks a bunch guys!

PS - I am unsure what logs, if any, to post but here is the hardware

System:
  Kernel: 6.15.6-arch1-1 arch: x86_64 bits: 64 compiler: gcc v: 15.1.1
    clocksource: tsc avail: hpet,acpi_pm
    parameters: initrd=\465a638d80874fc2a6c9002d6bf5f33c\6.15.6-arch1-1\initrd
    nvme_load=YES nowatchdog rw root=UUID=7278c5c3-d3c6-4486-894d-29567dd7511a
    resume=UUID=6650c4d7-123f-4a39-9b7b-0b7def34b610
    systemd.machine_id=465a638d80874fc2a6c9002d6bf5f33c
  Desktop: KDE Plasma v: 6.4.3 tk: Qt v: N/A wm: kwin_wayland with: krunner
    dm: SDDM Distro: EndeavourOS base: Arch Linux
Machine:
  Type: Desktop System: ASRock product: Z790 PG Lightning v: N/A serial: N/A
  Mobo: ASRock model: Z790 PG Lightning serial: <filter>
    uuid: f059a1a8-cc33-0000-0000-000000000000 UEFI: American Megatrends LLC.
    v: 16.02 date: 01/13/2025
Battery:
  Device-1: hidpp_battery_0 model: Logitech Wireless Keyboard serial: <filter>
    charge: 55% (should be ignored) rechargeable: yes status: discharging
Memory:
  System RAM: total: 32 GiB available: 31.09 GiB used: 5.14 GiB (16.5%)
  Array-1: capacity: 128 GiB slots: 4 modules: 2 EC: None
    max-module-size: 32 GiB note: est.
  Device-1: Controller0-ChannelA-DIMM0 type: no module installed
  Device-2: Controller0-ChannelA-DIMM1 type: DDR5 detail: synchronous
    size: 16 GiB speed: spec: 4800 MT/s actual: 5200 MT/s volts: curr: 1.25
    min: 1.25 max: 1.25 width (bits): data: 64 total: 64 manufacturer: Corsair
    part-no: CMK32GX5M2B5200C40 serial: N/A
  Device-3: Controller1-ChannelA-DIMM0 type: no module installed
  Device-4: Controller1-ChannelA-DIMM1 type: DDR5 detail: synchronous
    size: 16 GiB speed: spec: 4800 MT/s actual: 5200 MT/s volts: curr: 1.25
    min: 1.25 max: 1.25 width (bits): data: 64 total: 64 manufacturer: Corsair
    part-no: CMK32GX5M2B5200C40 serial: N/A
CPU:
  Info: model: 13th Gen Intel Core i9-13900K socket: LGA1700 bits: 64
    type: MST AMCP arch: Raptor Lake gen: core 13 level: v3 note: check
    built: 2022+ process: Intel 7 (10nm) family: 6 model-id: 0xB7 (183)
    stepping: 1 microcode: 0x12F
  Topology: cpus: 1x dies: 1 clusters: 12 cores: 24 threads: 32 mt: 8 tpc: 2
    st: 16 smt: enabled cache: L1: 2.1 MiB desc: d-16x32 KiB, 8x48 KiB; i-8x32
    KiB, 16x64 KiB L2: 32 MiB desc: 8x2 MiB, 4x4 MiB L3: 36 MiB desc: 1x36 MiB
  Speed (MHz): avg: 800 min/max: 800/5500:5800:4300 base/boost: 2970/8500
    scaling: driver: intel_pstate governor: powersave volts: 0.8 V
    ext-clock: 100 MHz cores: 1: 800 2: 800 3: 800 4: 800 5: 800 6: 800 7: 800
    8: 800 9: 800 10: 800 11: 800 12: 800 13: 800 14: 800 15: 800 16: 800
    17: 800 18: 800 19: 800 20: 800 21: 800 22: 800 23: 800 24: 800 25: 800
    26: 800 27: 800 28: 800 29: 800 30: 800 31: 800 32: 800 bogomips: 191692
  Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat
    arch_capabilities arch_lbr arch_perfmon art avx avx2 avx_vnni bmi1 bmi2
    bts clflush clflushopt clwb cmov constant_tsc cpuid cpuid_fault cx16 cx8
    de ds_cpl dtes64 dtherm dts epb ept ept_ad erms est f16c flexpriority
    flush_l1d fma fpu fsgsbase fsrm fxsr gfni hfi ht hwp hwp_act_window
    hwp_epp hwp_notify hwp_pkg_req ibpb ibrs ibrs_enhanced ibt ida intel_pt
    invpcid lahf_lm lm mca mce md_clear mmx monitor movbe movdir64b movdiri
    msr mtrr nonstop_tsc nopl nx ospke pae pat pbe pcid pclmulqdq pconfig pdcm
    pdpe1gb pebs pge pku pln pni popcnt pse pse36 pts rdpid rdrand rdseed
    rdtscp rep_good sdbg sep serialize sha_ni smap smep smx split_lock_detect
    ss ssbd sse sse2 sse4_1 sse4_2 ssse3 stibp syscall tm tm2 tpr_shadow tsc
    tsc_adjust tsc_deadline_timer tsc_known_freq umip user_shstk vaes vme vmx
    vnmi vpclmulqdq vpid waitpkg x2apic xgetbv1 xsave xsavec xsaveopt xsaves
    xtopology xtpr
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  Type: ghostwrite status: Not affected
  Type: indirect_target_selection status: Not affected
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: mmio_stale_data status: Not affected
  Type: reg_file_data_sampling mitigation: Clear Register File
  Type: retbleed status: Not affected
  Type: spec_rstack_overflow status: Not affected
  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
    prctl
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
    sanitization
  Type: spectre_v2 mitigation: Enhanced / Automatic IBRS; IBPB: conditional;
    PBRSB-eIBRS: SW sequence; BHI: BHI_DIS_S
  Type: srbds status: Not affected
  Type: tsa status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: NVIDIA GB203 [GeForce RTX 5080] vendor: ASUSTeK driver: nvidia
    v: 575.64.03 alternate: nouveau,nvidia_drm non-free: 550-570.xx+
    status: current (as of 2025-04) arch: Lovelace code: AD1xx
    process: TSMC n4 (5nm) built: 2022+ pcie: gen: 5 speed: 32 GT/s lanes: 16
    ports: active: none off: DP-2,DP-3 empty: DP-1,HDMI-A-1 bus-ID: 01:00.0
    chip-ID: 10de:2c02 class-ID: 0300
  Display: unspecified server: X.Org v: 24.1.8 with: Xwayland v: 24.1.8
    compositor: kwin_wayland driver: X: loaded: nvidia unloaded: modesetting
    alternate: fbdev,nouveau,nv,vesa gpu: nvidia,nvidia-nvswitch display-ID: :1
    screens: 1
  Screen-1: 0 s-res: 6000x1440 s-dpi: 96 s-size: 1587x381mm (62.48x15.00")
    s-diag: 1632mm (64.26")
  Monitor-1: DP-2 note: disabled pos: right model: MSI MAG274QRF
    serial: <filter> built: 2020 res: mode: 2560x1440 hz: 120 scale: 100% (1)
    dpi: 109 gamma: 1.2 size: 597x336mm (23.5x13.23") diag: 685mm (27")
    ratio: 16:9 modes: max: 2560x1440 min: 640x480
  Monitor-2: DP-3 note: disabled pos: primary,left model: LG (GoldStar)
    ULTRAGEAR+ serial: <filter> built: 2024 res: mode: 3440x1440 hz: 240
    scale: 100% (1) dpi: 110 gamma: 1.2 size: 795x333mm (31.3x13.11")
    diag: 862mm (33.9") modes: max: 3440x1440 min: 640x480
  API: EGL v: 1.5 hw: drv: nvidia platforms: device: 0 drv: nvidia device: 2
    drv: swrast gbm: drv: nvidia surfaceless: drv: nvidia x11: drv: nvidia
    inactive: wayland,device-1
  API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: nvidia mesa v: 575.64.03
    glx-v: 1.4 direct-render: yes renderer: NVIDIA GeForce RTX 5080/PCIe/SSE2
    memory: 15.55 GiB
  API: Vulkan v: 1.4.313 layers: 2 device: 0 type: discrete-gpu
    name: NVIDIA GeForce RTX 5080 driver: nvidia v: 575.64.03
    device-ID: 10de:2c02 surfaces: N/A
  Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
    de: kscreen-console,kscreen-doctor gpu: nvidia-settings,nvidia-smi
    wl: wayland-info x11: xdpyinfo, xprop, xrandr
Audio:
  Device-1: Intel Raptor Lake High Definition Audio vendor: ASRock
    driver: snd_hda_intel v: kernel alternate: snd_soc_avs,snd_sof_pci_intel_tgl
    bus-ID: 00:1f.3 chip-ID: 8086:7a50 class-ID: 0403
  Device-2: NVIDIA driver: snd_hda_intel v: kernel pcie: gen: 5
    speed: 32 GT/s lanes: 16 bus-ID: 01:00.1 chip-ID: 10de:22e9 class-ID: 0403
  API: ALSA v: k6.15.6-arch1-1 status: kernel-api
    tools: alsactl,alsamixer,amixer
  Server-1: PipeWire v: 1.4.6 status: n/a (root, process) 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 RTL8125 2.5GbE vendor: ASRock driver: r8169 v: kernel pcie:
    gen: 2 speed: 5 GT/s lanes: 1 port: 3000 bus-ID: 04:00.0 chip-ID: 10ec:8125
    class-ID: 0200
  IF: enp4s0 state: up speed: 2500 Mbps duplex: full mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
    broadcast: <filter>
  Device-2: NetGear Wireless_Device driver: mt7921u type: USB rev: 3.2
    speed: 5 Gb/s lanes: 1 mode: 3.2 gen-1x1 bus-ID: 2-6.1:5 chip-ID: 0846:9060
    class-ID: 0000 serial: <filter>
  IF: wlan0 state: down mac: <filter>
  Info: services: NetworkManager,systemd-timesyncd
  WAN IP: <filter>
Bluetooth:
  Message: No bluetooth data found.
Logical:
  Message: No logical block device data found.
RAID:
  Message: No RAID data found.
Drives:
  Local Storage: total: 22.08 TiB used: 9.37 TiB (42.4%)
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Intel model: SSDPEKNW010T8
    size: 953.87 GiB block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s
    lanes: 4 tech: SSD serial: <filter> fw-rev: 002C temp: 38.9 C scheme: GPT
  SMART: yes health: PASSED on: 3y 17d 12h cycles: 1,018
    read-units: 38,657,413 [19.7 TB] written-units: 36,517,184 [18.6 TB]
  ID-2: /dev/nvme1n1 maj-min: 259:6 vendor: Western Digital
    model: WD BLACK SN770 2TB size: 1.82 TiB block-size: physical: 512 B
    logical: 512 B speed: 63.2 Gb/s lanes: 4 tech: SSD serial: <filter>
    fw-rev: 731130WD temp: 43.9 C scheme: GPT
  SMART: yes health: PASSED on: 1y 285d 0h cycles: 574
    read-units: 68,160,194 [34.8 TB] written-units: 15,716,297 [8.04 TB]
  ID-3: /dev/nvme2n1 maj-min: 259:4 vendor: Samsung model: SSD 980 PRO with
    Heatsink 2TB size: 1.82 TiB block-size: physical: 512 B logical: 512 B
    speed: 63.2 Gb/s lanes: 4 tech: SSD serial: <filter> fw-rev: 5B2QGXA7
    temp: 38.9 C scheme: GPT
  SMART: yes health: PASSED on: 1y 216d 7h cycles: 641
    read-units: 28,822,995 [14.7 TB] written-units: 21,335,894 [10.9 TB]
  ID-4: /dev/sda maj-min: 8:0 vendor: Seagate model: ST12000VN0008-2PH103
    family: IronWolf size: 10.91 TiB block-size: physical: 4096 B logical: 512 B
    sata: 3.3 speed: 6.0 Gb/s tech: HDD rpm: 7200 serial: <filter> fw-rev: SC61
    temp: 34 C scheme: GPT
  SMART: yes state: enabled health: PASSED on: 1y 328d 1h cycles: 607
    read: 15.03 TiB written: 9.56 TiB Pre-Fail: attribute: Spin_Retry_Count
    value: 100 worst: 100 threshold: 97
  ID-5: /dev/sdb maj-min: 8:16 vendor: Seagate model: ST4000DM004-2CV104
    family: BarraCuda 3.5 (SMR) size: 3.64 TiB block-size: physical: 4096 B
    logical: 512 B sata: 3.1 speed: 6.0 Gb/s tech: HDD rpm: 5425
    serial: <filter> fw-rev: 0001 temp: 36 C scheme: GPT
  SMART: yes state: enabled health: PASSED on: 29622h+07m+49.255s cycles: 756
    read: 144.06 TiB written: 142.58 TiB Pre-Fail: attribute: Spin_Retry_Count
    value: 100 worst: 100 threshold: 97
  ID-6: /dev/sdc maj-min: 8:32 vendor: Samsung model: SSD 870 EVO 1TB
    family: based SSDs size: 931.51 GiB block-size: physical: 512 B
    logical: 512 B sata: 3.3 speed: 6.0 Gb/s tech: SSD serial: <filter>
    fw-rev: 2B6Q temp: 27 C scheme: GPT
  SMART: yes state: enabled health: PASSED on: 2y 130d 23h cycles: 726
    written: 55.52 TiB
  ID-7: /dev/sdd maj-min: 8:48 vendor: Seagate model: ST2000LM015-2E8174
    family: Barracuda 2.5 5400 size: 1.82 TiB block-size: physical: 4096 B
    logical: 512 B type: USB rev: 3.0 spd: 5 Gb/s lanes: 1 mode: 3.2 gen-1x1
    sata: 3.1 speed: 6.0 Gb/s tech: HDD rpm: 5400 serial: <filter> fw-rev: 0001
    drive-rev: SDM1 temp: 25 C scheme: MBR
  SMART: yes state: enabled health: PASSED on: 3y 206d 13h cycles: 632
    read: 3.88 TiB written: 28.71 TiB Pre-Fail: reallocated sector: 97
    threshold: 36 attribute: Spin_Retry_Count value: 100 worst: 100
    threshold: 97
  ID-8: /dev/sde maj-min: 8:64 vendor: Micron model: MTFDDAK256MAM-1K12
    family: Micron RealSSD m4/C400/P400 size: 238.47 GiB block-size:
    physical: 512 B logical: 512 B type: USB rev: 3.0 spd: 5 Gb/s lanes: 1
    mode: 3.2 gen-1x1 sata: 3.0 speed: 6.0 Gb/s tech: SSD serial: <filter>
    fw-rev: 0001 drive-rev: 08TH scheme: GPT
  SMART: yes state: enabled health: PASSED on: 2y 200d 9h cycles: 1543
    Old-Age: UDMA CRC errors: 1960 alert: Bad cable/connection? Pre-Fail:
    reallocated sector: 100 threshold: 10
  Message: No optical or floppy data found.
Partition:
  ID-1: / raw-size: 918.66 GiB size: 903.17 GiB (98.31%) used: 68.6 GiB (7.6%)
    fs: ext4 block-size: 4096 B dev: /dev/nvme0n1p2 maj-min: 259:2
    label: endeavouros uuid: 7278c5c3-d3c6-4486-894d-29567dd7511a
  ID-2: /efi raw-size: 1024 MiB size: 1022 MiB (99.80%)
    used: 294.2 MiB (28.8%) fs: vfat block-size: 512 B dev: /dev/nvme0n1p1
    maj-min: 259:1 label: N/A uuid: 0296-BE91
  ID-3: /run/media/yodaminium/37041ABF3B1444D2 raw-size: 238.47 GiB
    size: 238.47 GiB (100.00%) used: 30.61 GiB (12.8%) fs: ntfs
    block-size: 4096 B dev: /dev/sde1 maj-min: 8:65 label: N/A
    uuid: 37041ABF3B1444D2
  ID-4: /run/media/yodaminium/45E62357573BFCF7 raw-size: 1.82 TiB
    size: 1.82 TiB (100.00%) used: 216.93 GiB (11.6%) fs: ntfs block-size: 4096 B
    dev: /dev/sdd1 maj-min: 8:49 label: N/A uuid: 45E62357573BFCF7
  ID-5: /run/media/yodaminium/Games raw-size: 1.82 TiB
    size: 1.82 TiB (100.00%) used: 177.87 GiB (9.5%) fs: ntfs block-size: 4096 B
    dev: /dev/nvme1n1p2 maj-min: 259:8 label: Games uuid: EC9063C6906395BC
  ID-6: /run/media/yodaminium/Media raw-size: 10.91 TiB
    size: 10.91 TiB (100.00%) used: 7.79 TiB (71.4%) fs: ntfs block-size: 4096 B
    dev: /dev/sda2 maj-min: 8:2 label: Media uuid: F884CC3F84CBFE5E
  ID-7: /run/media/yodaminium/Personal raw-size: 3.64 TiB
    size: 3.64 TiB (100.00%) used: 257.02 GiB (6.9%) fs: ntfs block-size: 4096 B
    dev: /dev/sdb1 maj-min: 8:17 label: Personal uuid: 32066AB6066A7AAD
  ID-8: /run/media/yodaminium/fa0b2bd9-d783-4221-8c9d-98d7302fc974
    raw-size: 1.82 TiB size: 1.79 TiB (98.37%) used: 871.25 GiB (47.5%) fs: ext4
    block-size: 4096 B dev: /dev/nvme2n1p1 maj-min: 259:5 label: N/A
    uuid: fa0b2bd9-d783-4221-8c9d-98d7302fc974
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: yes
    compressor: zstd max-pool: 20%
  ID-1: swap-1 type: partition size: 34.21 GiB used: 0 KiB (0.0%)
    priority: -2 dev: /dev/nvme0n1p3 maj-min: 259:3 label: swap
    uuid: 6650c4d7-123f-4a39-9b7b-0b7def34b610
Unmounted:
  ID-1: /dev/nvme1n1p1 maj-min: 259:7 size: 16 MiB fs: N/A label: N/A uuid: N/A
  ID-2: /dev/sda1 maj-min: 8:1 size: 16 MiB fs: N/A label: N/A uuid: N/A
  ID-3: /dev/sdc1 maj-min: 8:33 size: 100 MiB fs: vfat label: N/A
    uuid: A6D4-CC08
  ID-4: /dev/sdc2 maj-min: 8:34 size: 16 MiB fs: N/A label: N/A uuid: N/A
  ID-5: /dev/sdc3 maj-min: 8:35 size: 930.4 GiB fs: ntfs label: N/A
    uuid: 01DA45628E0EB110
  ID-6: /dev/sdc4 maj-min: 8:36 size: 1 GiB fs: ntfs label: N/A
    uuid: 01DA45631BA52EA0
USB:
  Hub-1: 1-0:1 info: hi-speed hub with single TT ports: 16 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Device-1: 1-1:23 info: Samsung Galaxy series misc. (MTP mode) type: still
    imaging,abstract (modem),CDC-data driver: cdc_acm interfaces: 4 rev: 2.1
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 04e8:6860
    class-ID: 0a00 serial: <filter>
  Hub-2: 1-2:2 info: ASMedia ASM1074 High-Speed hub ports: 4 rev: 2.1
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 power: 100mA
    chip-ID: 174c:2074 class-ID: 0900
  Device-1: 1-2.1:16 info: TEAC Floppy type: mass storage driver: usb-storage
    interfaces: 1 rev: 1.1 speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1
    power: 500mA chip-ID: 0644:0000 class-ID: 0804
  Device-2: 1-3:3 info: Logitech Nano Receiver type: keyboard,mouse
    driver: logitech-djreceiver,usbhid interfaces: 2 rev: 2.0
    speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 98mA
    chip-ID: 046d:c534 class-ID: 0301
  Hub-3: 1-8:24 info: Genesys Logic Hub ports: 3 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 power: 100mA
    chip-ID: 05e3:0610 class-ID: 0900
  Device-1: 1-8.3:25 info: Micro Star MSI Gaming Controller type: HID
    driver: hid-generic,usbhid interfaces: 1 rev: 1.1 speed: 12 Mb/s (1.4 MiB/s)
    lanes: 1 mode: 1.1 power: 100mA chip-ID: 1462:3fa4 class-ID: 0300
    serial: <filter>
  Device-2: 1-10:6 info: NZXT USB Device type: HID
    driver: nzxt_kraken3,usbhid interfaces: 1 rev: 2.0 speed: 12 Mb/s (1.4 MiB/s)
    lanes: 1 mode: 1.1 power: 100mA chip-ID: 1e71:2007 class-ID: 0300
    serial: <filter>
  Hub-4: 1-11:8 info: VIA Labs Hub ports: 4 rev: 2.1
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 2109:2210
    class-ID: 0900
  Device-1: 1-13:9 info: ASRock LED Controller type: HID
    driver: hid-generic,usbhid interfaces: 1 rev: 1.1 speed: 12 Mb/s (1.4 MiB/s)
    lanes: 1 mode: 1.1 power: 100mA chip-ID: 26ce:01a2 class-ID: 0300
    serial: <filter>
  Hub-5: 2-0:1 info: super-speed hub ports: 9 rev: 3.1
    speed: 20 Gb/s (2.33 GiB/s) lanes: 2 mode: 3.2 gen-2x2 chip-ID: 1d6b:0003
    class-ID: 0900
  Device-1: 2-4:2 info: JMicron / USA JMS561U two ports SATA 6Gb/s bridge
    type: mass storage driver: usb-storage interfaces: 1 rev: 3.0
    speed: 5 Gb/s (596.0 MiB/s) lanes: 1 mode: 3.2 gen-1x1 power: 8mA
    chip-ID: 152d:1561 class-ID: 0806 serial: <filter>
  Hub-6: 2-6:3 info: VIA Labs Hub ports: 1 rev: 3.0
    speed: 5 Gb/s (596.0 MiB/s) lanes: 1 mode: 3.2 gen-1x1 chip-ID: 2109:0210
    class-ID: 0900
  Device-1: 2-6.1:5 info: NetGear Wireless_Device type: Network
    driver: mt7921u interfaces: 1 rev: 3.2 speed: 5 Gb/s (596.0 MiB/s) lanes: 1
    mode: 3.2 gen-1x1 power: 160mA chip-ID: 0846:9060 class-ID: 0000
    serial: <filter>
  Hub-7: 2-9:4 info: ASMedia ASM1074 SuperSpeed hub ports: 4 rev: 3.0
    speed: 5 Gb/s (596.0 MiB/s) lanes: 1 mode: 3.2 gen-1x1 power: 8mA
    chip-ID: 174c:3074 class-ID: 0900
Sensors:
  System Temperatures: cpu: 37.0 C mobo: N/A
  Fan Speeds (rpm): N/A
Info:
  Processes: 501 Power: uptime: 14h 41m states: freeze,mem,disk suspend: deep
    avail: s2idle wakeups: 0 hibernate: platform avail: shutdown, reboot,
    suspend, test_resume image: 12.39 GiB services: org_kde_powerdevil,
    power-profiles-daemon, upowerd Init: systemd v: 257 default: graphical
    tool: systemctl
  Packages: pm: pacman pkgs: 1393 libs: 377 tools: yay Compilers: gcc: 15.1.1
    Shell: Sudo (sudo) v: 1.9.17p1 default: Bash v: 5.3.0 running-in: konsole
    inxi: 3.3.38

[cscs]

The original poster has yet to respond ..

But all of the replies are concerned with the QtQuick/Rendering backend.

If your issue is related to that it would mean checking its current settings and possibly changing that backend back to automatic.

kcmshell6 kcm_qtquicksettings

Though we would not normally expect it to have changed on its own.

[noobr]

@cscs

kcmshell6 kcm_qtquicksettings

Thanks again CSCS.

I am looking at it and both options are set to automatic already.
Is it possible there is a hotkey I am pressing as I type something, that would change that setting?

A noobr like me might do it without realizing I did it?

and then I do killall plasmashell
restart it and it is again set to automatic?

Either way, I just clicked reset to defaults and closed it again.

I’ll report back if it happens again.

PS-it has happened a few times only.
It is not like every hour or even every day.

[Bink]

@cscs

Sounds like you were working around a misconfiguration or a bug by disabling all desktop acceleration.

It’s a reasonable thing to test for, and fairly easy to reproduce. It’s something to rule-in/out for sure.

@cscs

In fact it should be avoided, as I stated above, and may cause various breakage to change the setting to anything other than auto.

This is understood, but to put it into perspective, it’s the difference between being able to do my work for my clients, or not. Changing that setting fixed an issue with negligable side-effects for months, permitting me to work unhindered by KDE GPU memory issues, at least until this update.

Unfortunately, it’s a fix that’ll need to be re-assessed.

[noobr]

I mentioned in this thread that when the crash occurs and after I recover from it, I can no longer move desktop icons from display 1 to display 2 and vice versa.
I CAN move windows and applications I open between the displays,
but no desktop icons, folder, links, shortcuts seem to be restricted to it’s monitor.

Previous to this latest instance of the kde desktop crash, I recovered, exactly the same way I did the past 3-4 times and a reboot reboot resolved everything, NOW I can no longer move the desktop icons between displays.

I would love it someone just gave me some tips as to howto troubleshoot this instead of a DO this and your done kinda deal.
I am trying to learn howto fix all this crapola without asking howto

Maybe I can help others by the time I retire in 7-10 years.

That is my ultimate goal.
I will have plenty of time, the willingness to do it and hopefully the knowledge

Thanks all!

John

Edit-If I should make a new thread for this issue please ask me. I have zero issues making a new one, I wanted to keep it all in the one thread is all.

[MyNameIsRichard]

The first step is to look in the logs and see if there is anything useful. Run:

journalctl --since <time a couple of minutes before the crash> --until <time a couple of minutes after the crash>

[ricklinux]

@noobr
I’ve never ever had these issues on Kde but i see you a have quite new hardware. There is a newer UEFI Bios version 17.03 for your motherboard. It contains a new Intel Microcode. Not saying that will fix your issue but sometimes they do.

Hopefully you are using the nvidia-open drivers on the 5080 gpu.

[noobr]

TY Rick,

I have the new intel microcode update.
I am stalling in applying it as the last time I lost 5% performance (Intel’s fix - choked the CPU–AMD next time:-)

I AM running the NVIDIA-open drivers

I’ll go update that microcode and get back to.
However, this issue only started few days after the full system upgrade and then the next updates.

Everything was working fine but I did not try moving a desktop icon until a could days before this post. I scoured the internet fruitlessly for a similar situation that was resolved but that led to nothing useful, except trash all your panels and recreate them.

I did a complete reset of plasma and when I rebooted I had 1 less taskbar and the same icons and folders are stuck to their individual displays issue except now, because I reset plasma ALL the icons and folders on are display 1 and nothing is on display 2.

I can move the icons and folders any where I want on the 1 display, but cannot move them to another display.

TYSir.

Of to do microcode…

[noobr]

Well. It was worth a shot but nogo.

Micro-code all updated but same issue.

Is there a way to check the actual desktop permissions as far as display goes? I mean, it’s almost like that monitor belongs to root or another user and I can move a window to it but no icons. or folders.

I cannot create icons or folders no the display now either.

Honestly, do yah think we could be messing around with this for weeks and no results?

Is it likely, based on your experience and the experience of anyone who is MUCH more knowledgeable than me with Linux, which admittedly isn’t that hard to do.

This situation made me boot into Windows (uuhhhhggg - I see enough of it at work) and it’s all good there , so it’s not the hardware.

In the meantime, I will just put up with this until another kde and NVIDIA driver update occur.

If that doesn’t fix it, well, I have everything backed up anyways so I can just wipe, reinstall and this time I go with the online install and just put xfce on.
Sigh. I was really hoping KDE would have worked out it’s display bugs, I love kde. BUT, I love a working display system more so.

Is what it is.\

Edit-Don’t get me wrong, I am willing to keep trouble shooting if you think we can resolve this without re-installing.

[ricklinux]

@noobr

was really hoping KDE would have worked out it’s display bugs, I love kde. BUT, I love a working display system more so.

I’ve never had these issues and I have Kde installed on 5 different systems. Some are desktops with amd and or nvidia and others are laptops with amd.

[ricklinux]

@noobr
Would like to help you resolve it. Can you explain a little more about your setup? Is it a desktop system i assume from the hardware log i see? Do you have more than one monitor hooked up?

@noobr

Is there a way to check the actual desktop permissions as far as display goes? I mean, it’s almost like that monitor belongs to root or another user and I can move a window to it but no icons. or folders.

Not sure why any permissions would change? I never usually do anything with permissions on my linux system unless it’s something that is necessary like a script that needs permissions to run.

[noobr]

Agreed.
I did not intentionally change anything myself.

I am going to UN-insatll the NVIDIA drivers and reinstall them.

I’ll post results soon.

Even if I have to boot into windows to do it…sigh…

[noobr]

@ricklinux

Would like to help you resolve it. Can you explain a little more about your setup? Is it a desktop system i assume from the hardware log i see? Do you have more than one monitor hooked up?

Before I purge and re-install the NVIDIA drivers here is my setup.

Desktop system with dual displays both connected via DP and pretty good quality DP cables.

Monitor 1
LG Ultra Gear Model# LG34GS95QE Wide Screen 34" HDR
I have been running it at the full 240Hrz (no issues previous to OS update and subsequent minor updates)
HDR enabled before and after the updates

Monitor 2
Asus Tuff Gaming non-wide screen 27" @ 144Hrz non-HDR

BOTH 1440p

The PC is a case with the hardware you see in the inxi output.

kscreen-doctor -o

Output: 1 DP-2 d5de1155-9fb3-4bcd-b555-dd57d9599b62
        enabled
        connected
        priority 1
        DisplayPort
        replication source:0
        Modes:  1:3440x1440@240*!  2:3440x1440@144  3:3440x1440@120  4:3440x1440@100  5:3440x1440@60  6:3440x1440@50  7:1920x1080@120  8:1920x1080@60  9:1280x1024@75  10:1024x768@60  11:800x600@60  12:640x480@60 
        Geometry: 0,0 3440x1440
        Scale: 1
        Rotation: 1
        Overscan: 0
        Vrr: Automatic
        RgbRange: unknown
        HDR: enabled
                SDR brightness: 420 nits
                SDR gamut wideness: 100%
                Peak brightness: 750 nits, overridden with: 750 nits
                Max average brightness: 277 nits
                Min brightness: 0.0001 nits
        Wide Color Gamut: enabled
        ICC profile: none
        Color profile source: sRGB
        Color power preference: prefer accuracy
        Brightness control: supported, set to 100% and dimming to 100%
        DDC/CI: allowed
        Color resolution: unknown
        Allow EDR: unsupported
Output: 2 DP-3 70af5d4b-ec1b-450a-ab93-0d108b563a4b
        enabled
        connected
        priority 2
        DisplayPort
        replication source:0
        Modes:  13:2560x1440@60!  14:2560x1440@144*  15:2560x1440@120  16:2560x1440@100  17:1920x1080@120  18:1920x1080@100  19:1920x1080@60  20:1920x1080@60  21:1920x1080@50  22:1280x1024@75  23:1280x1024@60  24:1440x900@60  25:1152x864@75  26:1280x720@60  27:1280x720@50  28:1440x576@50  29:1024x768@75  30:1024x768@70  31:1024x768@60  32:1440x480@60  33:800x600@75  34:800x600@72  35:800x600@60  36:800x600@56  37:720x576@50  38:640x480@75  39:640x480@73  40:640x480@60 
        Geometry: 3440,0 2560x1440
        Scale: 1
        Rotation: 1
        Overscan: 0
        Vrr: incapable
        RgbRange: unknown
        HDR: disabled
        Wide Color Gamut: disabled
        ICC profile: none
        Color profile source: sRGB
        Color power preference: prefer accuracy
        Brightness control: supported, set to 90% and dimming to 100%
        DDC/CI: allowed
        Color resolution: unknown
        Allow EDR: unsupported

[noobr]

OK-I tried the UN-installed it failed to load the nouveau driver when it rebooted so it reverted t the NVIDIA driver again..not the nouveau one I do not believe (am unsure on this).
I did get some dependency errors when removing the NVIDIA-open driver -I went ahead anyways

so, I attempted to remove it again and same thing.
So, I attempts re-install and it just said balh..are already OK!

same issue still exists

Here is some output:

removing nvidia open driver gave this warning:

sudo nvidia-installer -n

checking dependencies...
error: failed to prepare transaction (could not satisfy dependencies)
:: removing nvidia-utils breaks dependency 'vulkan-driver' required by steam
:: removing lib32-nvidia-utils breaks dependency 'lib32-vulkan-driver' required by steam
:: Synchronizing package databases...
 endeavouros downloading...
 core downloading...
 extra downloading...
 multilib downloading...
:: Starting full system upgrade...
resolving dependencies...
looking for conflicting packages...
warning: dependency cycle detected:
warning: phonon-qt6-vlc will be installed before its phonon-qt6 dependency

then it went ahead and said it was removed and I needed to reboot.
Reboot
After reboot

lspci -v

copied these lines from output:

Kernel driver in use: nvidia
Kernel modules: nouveau, nvidia_drm, nvidia
----------------

cat /var/log/Xorg.0.log | grep nouveau

[     5.896] (==) Matched nouveau as autoconfigured driver 1
[     5.899] (II) LoadModule: "nouveau"
[     5.899] (WW) Warning, couldn't open module nouveau
[     5.899] (EE) Failed to load module "nouveau" (module does not exist, 0)
----------------
cat /var/log/Xorg.0.log | grep nvidia
[     5.888] (**) OutputClass "nvidia" ModulePath extended to "/usr/lib/nvidia/xorg,/usr/lib/xorg/modules,/usr/lib/xorg/modules"
[     5.896] (II) Applying OutputClass "nvidia" to /dev/dri/card1
[     5.896]    loading driver: nvidia
[     5.896] (==) Matched nvidia as autoconfigured driver 0
[     5.896] (II) LoadModule: "nvidia"
[     5.896] (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
[     5.899] (II) Module nvidia: vendor="NVIDIA Corporation"
[     5.904] (II) Applying OutputClass "nvidia" options to /dev/dri/card1
[     5.904] (II) Loading sub module "glxserver_nvidia"
[     5.904] (II) LoadModule: "glxserver_nvidia"
[     5.904] (II) Loading /usr/lib/nvidia/xorg/libglxserver_nvidia.so
[     5.991] (II) Module glxserver_nvidia: vendor="NVIDIA Corporation"
[     6.158] (==) NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select"
[     6.159] (II) NVIDIA(0):     "DFP-5:nvidia-auto-select,DFP-3:nvidia-auto-select"
[     6.218] (II) NVIDIA(0): Setting mode "DFP-5:nvidia-auto-select,DFP-3:nvidia-auto-select"
[     6.424] (II) NVIDIA(0): [DRI2]   VDPAU driver: nvidia
----------------

then attempt to re-install

nvidia-inst -gives no choice to choose anything
Reboot
After Reboot

nvidia-inst
2025-07-24 20:17:49: Info: nvidia-inst version 25.7.1-1
2025-07-24 20:17:49: Info: Command line: nvidia-inst 
2025-07-24 20:17:49: Info: Selected mode: nvidia (Nvidia's open source)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
COMMANDS TO RUN:
    ==> Looks like all requested packages and settings are already OK!

Issue still exists.