Khelpcenter segfault

[donald]

When trying to run khelpcenter it shows its window for about a second then disappears with-

GBM is not supported with the current configuration. Fallback to Vulkan rendering in Chromium.
View::langLookup “kdoctools6-common/kde-default.css”
View::langLookup “khelpcenter/glossary/index.docbook”
zsh: segmentation fault (core dumped) khelpcenter

Operating System: Manjaro Linux
KDE Plasma Version: 6.3.6
KDE Frameworks Version: 6.18.0
Qt Version: 6.9.2
Kernel Version: 6.16.8-1-MANJARO (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i5-2500K CPU @ 3.30GHz
Memory: 15.6 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 970

Anyone else having this problem?

I suspect it’s to do with nvidia but don’t know what to do. Any help would be appreciated.

thanks Donald

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Mod edit:- Minor changes to conform with forum guidelines. No charge.
See: How to Post Command Output as Preformatted Text

[soundofthunder]

@donald

If you would like to give detail that is useful for those who might wish to offer assistance, please provide your system information as described (below).

I’m sure someone will help when they are able.

Regards.

---

Welcome to the Manjaro community

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To that end, links are provided (below) - Please use them.

---

Be prepared to provide outputs from various commands when asked. It’s equally important to provide as much actionable information as possible in your first post, rather than simply indicating there is a problem.

Waiting for others to blindly ask questions can be counter-productive – typically, nobody has a at their disposal – Instead, please help others to make informed suggestions, based on information you provide.

---

[details=“Update Announcements” open]

The Update Announcements contain important information and a Known Issues and Solutions section that should generally be checked before posting a request for support.

System Information

While information from *-fetch type apps might be fine for someone wishing to buy your computer, for Support purposes it’s better to ask your system directly;

Output of the inxi command (with appropriate parameters, and formatted according to forum guidelines) will generate information useful for those wishing to help:

inxi --filter --verbosity=8

or the short form (preferred):

inxi -zv8

• inxi man pages (Arch Manual)

@Running `inxi` in `chroot`

If you need to run inxi from within a chroot environment, and find the output is laced with unexpected 12’s, please try again with:

• Add to the long form command: --color=0
• or, change the short form to: inxi -zv8c0

@Your privacy is respected

When inxi is run using the --filter or -z parameters, any personally identifiable information is filtered from the resulting output.

Highly Recommended

• How to Post
• How to Request Support
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• Tutorials

Required Reading

• Forum Rules
• Strict Forum Rules and Guidelines

---

@Notice

The above content is partially pre-prepared as an introduction for new or returning forum Users. Please take the time to follow any links given and discover how to use the Manjaro forum features effectively.

[donald]

I have searched the forum but can’t find anything relating to this.

Output from inxi -zv8

System:
  Kernel: 6.16.8-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 15.2.1
    clocksource: tsc avail: hpet,acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.16-x86_64
    root=UUID=9c2e1d4d-6c58-4216-88fe-8efc726b22bc rw quiet splash
    resume=UUID=9c2e1d4d-6c58-4216-88fe-8efc726b22bc resume_offset=125284352
    udev.log_priority=3
  Desktop: KDE Plasma v: 6.3.6 tk: Qt v: N/A info: frameworks v: 6.18.0
    wm: kwin_x11 vt: 2 dm: SDDM Distro: Manjaro base: Arch Linux
Machine:
  Type: Desktop Mobo: ASUSTeK model: P8P67 v: Rev 1.xx
    serial: <superuser required> part-nu: SKU uuid: <superuser required>
    BIOS: American Megatrends v: 3602 date: 11/01/2012
Battery:
  Message: No system battery data found. Is one present?
Memory:
  System RAM: total: 16 GiB available: 15.58 GiB used: 3.61 GiB (23.2%)
  Message: For most reliable report, use superuser + dmidecode.
  Array-1: capacity: 32 GiB slots: 4 modules: 4 EC: None
    max-module-size: 8 GiB note: est.
  Device-1: ChannelA-DIMM0 type: DDR3 detail: synchronous size: 4 GiB
    speed: 1333 MT/s volts: N/A width (bits): data: 64 total: 64
    manufacturer: 04cd part-no: F3-12800CL9-4GBXL serial: N/A
  Device-2: ChannelA-DIMM1 type: DDR3 detail: synchronous size: 4 GiB
    speed: 1333 MT/s volts: N/A width (bits): data: 64 total: 64
    manufacturer: Corsair part-no: CMZ8GX3M2A1866C9 serial: N/A
  Device-3: ChannelB-DIMM0 type: DDR3 detail: synchronous size: 4 GiB
    speed: 1333 MT/s volts: N/A width (bits): data: 64 total: 64
    manufacturer: 04cd part-no: F3-12800CL9-4GBXL serial: N/A
  Device-4: ChannelB-DIMM1 type: DDR3 detail: synchronous size: 4 GiB
    speed: 1333 MT/s volts: N/A width (bits): data: 64 total: 64
    manufacturer: Corsair part-no: CMZ8GX3M2A1866C9 serial: N/A
PCI Slots:
  Permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: model: Intel Core i5-2500K bits: 64 type: MCP arch: Sandy Bridge
    gen: core 2 level: v2 built: 2010-12 process: Intel 32nm family: 6
    model-id: 0x2A (42) stepping: 7 microcode: 0x2F
  Topology: cpus: 1x dies: 1 clusters: 4 cores: 4 smt: <unsupported> cache:
    L1: 256 KiB desc: d-4x32 KiB; i-4x32 KiB L2: 1024 KiB desc: 4x256 KiB
    L3: 6 MiB desc: 1x6 MiB
  Speed (MHz): avg: 1605 min/max: 1600/3700 scaling: driver: intel_cpufreq
    governor: schedutil cores: 1: 1605 2: 1605 3: 1605 4: 1605 bogomips: 26485
  Flags: acpi aes aperfmperf apic arat arch_perfmon avx bts clflush cmov
    constant_tsc cpuid cx16 cx8 de ds_cpl dtes64 dtherm dts epb ept est
    flexpriority flush_l1d fpu fxsr ht ibpb ibrs ida lahf_lm lm mca mce
    md_clear mmx monitor msr mtrr nonstop_tsc nopl nx pae pat pbe pcid
    pclmulqdq pdcm pebs pge pln pni popcnt pse pse36 pti pts rdtscp rep_good
    sep ssbd sse sse2 sse4_1 sse4_2 ssse3 stibp syscall tm tm2 tpr_shadow tsc
    tsc_deadline_timer vme vmx vnmi vpid xsave xsaveopt 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: KVM: Split huge pages
  Type: l1tf mitigation: PTE Inversion; VMX: conditional cache flushes, SMT
    disabled
  Type: mds mitigation: Clear CPU buffers; SMT disabled
  Type: meltdown mitigation: PTI
  Type: mmio_stale_data status: Not affected
  Type: old_microcode status: Not affected
  Type: reg_file_data_sampling status: Not affected
  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: Retpolines; IBPB: conditional; IBRS_FW;
    STIBP: disabled; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not
    affected
  Type: srbds status: Not affected
  Type: tsa status: Not affected
  Type: tsx_async_abort status: Not affected
  Type: vmscape mitigation: IBPB before exit to userspace
Graphics:
  Device-1: NVIDIA GM204 [GeForce GTX 970] vendor: Gigabyte driver: nouveau
    v: kernel alternate: nova_core non-free: 550-580.xx+ status: current (as of
    2025-08; EOL~2026-12-xx) arch: Maxwell code: GMxxx process: TSMC 28nm
    built: 2014-2019 pcie: gen: 1 speed: 2.5 GT/s lanes: 8 link-max: gen: 3
    speed: 8 GT/s lanes: 16 ports: active: DVI-D-1
    empty: DP-1,DVI-I-1,HDMI-A-1 bus-ID: 01:00.0 chip-ID: 10de:13c2
    class-ID: 0300 temp: 31.0 C
  Display: x11 server: X.Org v: 21.1.18 with: Xwayland v: 24.1.8
    compositor: kwin_x11 driver: X: loaded: modesetting alternate: fbdev,vesa
    dri: nouveau gpu: nouveau display-ID: :0 screens: 1
  Screen-1: 0 s-res: 1920x1200 s-dpi: 96 s-size: 508x317mm (20.00x12.48")
    s-diag: 599mm (23.57")
  Monitor-1: DVI-D-1 model: Dell U2412M serial: <filter> built: 2011 res:
    mode: 1920x1200 hz: 60 scale: 100% (1) dpi: 94 gamma: 1.2 chroma: red:
    x: 0.639 y: 0.329 green: x: 0.298 y: 0.600 blue: x: 0.149 y: 0.059 white:
    x: 0.314 y: 0.329 size: 518x324mm (20.39x12.76") diag: 611mm (24.1")
    ratio: 16:10 modes: 1920x1200, 1920x1080, 1600x1200, 1680x1050,
    1280x1024, 1280x960, 1024x768, 800x600, 640x480, 720x400
  API: EGL v: 1.5 hw: drv: nvidia nouveau platforms: device: 0 drv: nouveau
    device: 1 drv: swrast gbm: drv: nouveau surfaceless: drv: nouveau x11:
    drv: nouveau inactive: wayland
  API: OpenGL v: 4.5 compat-v: 4.3 vendor: mesa v: 25.2.3-arch1.2 glx-v: 1.4
    direct-render: yes renderer: NV124 device-ID: 10de:13c2 memory: 3.9 GiB
    unified: no
  API: Vulkan v: 1.4.321 layers: 1 device: 0 type: discrete-gpu name: NVIDIA
    GeForce GTX 970 (NVK GM204) driver: mesa nvk v: 25.2.3-arch1.2
    device-ID: 10de:13c2 surfaces: N/A
  Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
    de: kscreen-console,kscreen-doctor wl: wayland-info
    x11: xdpyinfo, xprop, xrandr
Audio:
  Device-1: Intel 6 Series/C200 Series Family High Definition Audio
    vendor: ASUSTeK driver: snd_hda_intel v: kernel bus-ID: 00:1b.0
    chip-ID: 8086:1c20 class-ID: 0403
  Device-2: NVIDIA GM204 High Definition Audio vendor: Gigabyte
    driver: snd_hda_intel v: kernel alternate: nova_core pcie: gen: 1
    speed: 2.5 GT/s lanes: 8 link-max: gen: 3 speed: 8 GT/s lanes: 16
    bus-ID: 01:00.1 chip-ID: 10de:0fbb class-ID: 0403
  API: ALSA v: k6.16.8-1-MANJARO status: kernel-api with: aoss
    type: oss-emulator tools: alsactl,alsamixer,amixer
  Server-1: JACK v: 1.9.22 status: off tools: N/A
  Server-2: PipeWire v: 1.4.8 status: active with: 1: pipewire-pulse
    status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
    tools: pactl,pw-cat,pw-cli,wpctl
Network:
  Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
    vendor: ASUSTeK P8P67 and other motherboards driver: r8169 v: kernel pcie:
    gen: 1 speed: 2.5 GT/s lanes: 1 port: d000 bus-ID: 05:00.0
    chip-ID: 10ec:8168 class-ID: 0200
  IF: enp5s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
    broadcast: <filter>
  IP v6: <filter> type: dynamic noprefixroute scope: global
  IP v6: <filter> type: noprefixroute scope: global
  IP v6: <filter> type: noprefixroute scope: global
  IP v6: <filter> type: noprefixroute scope: link
  Info: services: NetworkManager, nginx, sshd, systemd-timesyncd,
    wpa_supplicant
  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: 7.39 TiB used: 144.61 GiB (1.9%)
  SMART Message: Unable to run smartctl. Root privileges required.
  ID-1: /dev/sda maj-min: 8:0 vendor: Samsung model: SSD 840 EVO 120GB
    size: 111.79 GiB block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
    tech: SSD serial: <filter> fw-rev: BB6Q scheme: MBR
  ID-2: /dev/sdb maj-min: 8:16 vendor: Western Digital
    model: WD20EARX-00PASB0 size: 1.82 TiB block-size: physical: 4096 B
    logical: 512 B speed: 6.0 Gb/s tech: N/A serial: <filter> fw-rev: AB51
    scheme: GPT
  ID-3: /dev/sdc maj-min: 8:32 vendor: Western Digital
    model: WD10EADS-00M2B0 size: 931.51 GiB block-size: physical: 512 B
    logical: 512 B speed: 3.0 Gb/s tech: N/A serial: <filter> fw-rev: 0A01
    scheme: MBR
  ID-4: /dev/sdd maj-min: 8:48 vendor: Samsung model: SSD 870 EVO 1TB
    size: 931.51 GiB block-size: physical: 512 B logical: 512 B speed: 3.0 Gb/s
    tech: SSD serial: <filter> fw-rev: 3B6Q scheme: MBR
  ID-5: /dev/sde maj-min: 8:64 vendor: Western Digital
    model: WD40NMZW-59BCBS0 size: 3.64 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: 4800 serial: <filter> fw-rev: 4004 scheme: GPT
  Optical-1: /dev/sr0 vendor: ASUS model: DRW-1814BLT rev: 1.14
    dev-links: cdrom
  Features: speed: 48 multisession: yes audio: yes dvd: yes
    rw: cd-r,cd-rw,dvd-r,dvd-ram state: running
Partition:
  ID-1: / raw-size: 922.71 GiB size: 907.15 GiB (98.31%)
    used: 144.61 GiB (15.9%) fs: ext4 dev: /dev/sdd1 maj-min: 8:49
    label: 870 EVO uuid: 9c2e1d4d-6c58-4216-88fe-8efc726b22bc
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: yes
    compressor: zstd max-pool: 20%
  ID-1: swap-1 type: file size: 20 GiB used: 0 KiB (0.0%) priority: -2
    file: /swapfile
  ID-2: swap-2 type: partition size: 8.8 GiB used: 0 KiB (0.0%) priority: -3
    dev: /dev/sdd2 maj-min: 8:50 label: swap
    uuid: f42c3997-f820-4f3f-9ae3-8b4a2556ebae
Unmounted:
  ID-1: /dev/sda1 maj-min: 8:1 size: 111.79 GiB fs: ext4 label: 840EVO
    uuid: 69b9e6e6-7f87-4731-a7c7-a3c31aaa2f48
  ID-2: /dev/sdb1 maj-min: 8:17 size: 1.82 TiB fs: ext4 label: extra
    uuid: bb56e27b-8c95-4225-b16a-e2c834bf1209
  ID-3: /dev/sdc1 maj-min: 8:33 size: 931.51 GiB fs: ntfs
    label: win7_storage uuid: 01CDDD4C390D0520
  ID-4: /dev/sde1 maj-min: 8:65 size: 3.64 TiB fs: ext4 label: WD_Black
    uuid: 72be91c9-2f6f-4f22-bc7d-bf1584294392
USB:
  Hub-1: 1-0:1 info: hi-speed hub with single TT ports: 2 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Hub-2: 2-0:1 info: full speed or root hub ports: 2 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Hub-3: 2-1:2 info: Intel Integrated Rate Matching Hub ports: 6 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 8087:0024
    class-ID: 0900
  Hub-4: 3-0:1 info: super-speed hub ports: 2 rev: 3.0
    speed: 5 Gb/s (596.0 MiB/s) lanes: 1 mode: 3.2 gen-1x1 chip-ID: 1d6b:0003
    class-ID: 0900
  Hub-5: 4-0:1 info: full speed or root hub ports: 2 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Hub-6: 4-1:2 info: Intel Integrated Rate Matching Hub ports: 8 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 8087:0024
    class-ID: 0900
  Device-1: 4-1.1:3 info: Wacom CTH-480 [Intuos Pen & Touch (S)]
    type: HID,mouse driver: usbhid,wacom interfaces: 3 rev: 2.0
    speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 498mA
    chip-ID: 056a:0302 class-ID: 0301
  Device-2: 4-1.2:4 info: Logitech G5 Laser Mouse type: mouse,HID
    driver: hid-generic,usbhid interfaces: 2 rev: 2.0 speed: 12 Mb/s (1.4 MiB/s)
    lanes: 1 mode: 1.1 power: 98mA chip-ID: 046d:c049 class-ID: 0300
  Hub-7: 5-0:1 info: hi-speed hub with single TT ports: 2 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Hub-8: 6-0:1 info: super-speed hub ports: 2 rev: 3.0
    speed: 5 Gb/s (596.0 MiB/s) lanes: 1 mode: 3.2 gen-1x1 chip-ID: 1d6b:0003
    class-ID: 0900
  Device-1: 6-2:2 info: Western Digital Game Drive type: mass storage
    driver: usb-storage interfaces: 1 rev: 3.2 speed: 5 Gb/s (596.0 MiB/s)
    lanes: 1 mode: 3.2 gen-1x1 power: 896mA chip-ID: 1058:2630 class-ID: 0806
    serial: <filter>
Sensors:
  System Temperatures: cpu: 31.0 C mobo: N/A gpu: nouveau temp: 31.0 C
  Fan Speeds (rpm): N/A gpu: nouveau fan: 1336
Repos:
  Packages: pm: pacman pkgs: 2075 libs: 418 tools: octopi,pamac,yay
    pm: flatpak pkgs: 0
  Active pacman repo servers in: /etc/pacman.d/mirrorlist
    1: https://mirror.2degrees.nz/manjaro/stable/$repo/$arch
Processes:
  CPU top: 5 of 234
  1: cpu: 9.3% command: firefox pid: 9992 mem: 872.1 MiB (5.4%)
  2: cpu: 7.5% command: konsole pid: 20824 mem: 242.1 MiB (1.5%)
  3: cpu: 2.6% command: zsh pid: 20837 mem: 10.7 MiB (0.0%)
  4: cpu: 1.9% command: firefox pid: 18928 mem: 250.5 MiB (1.5%)
  5: cpu: 1.9% command: [kworker/u16:3-flush-8:48] pid: 20531
    mem: 0.00 MiB (0.0%)
  Memory top: 5 of 234
  1: mem: 872.1 MiB (5.4%) command: firefox pid: 9992 cpu: 9.3%
  2: mem: 457.1 MiB (2.8%) command: firefox pid: 10257 cpu: 0.1%
  3: mem: 391.4 MiB (2.4%) command: firefox pid: 19037 cpu: 0.1%
  4: mem: 353.4 MiB (2.2%) command: plasmashell pid: 900 cpu: 0.0%
  5: mem: 296.2 MiB (1.8%) command: firefox pid: 10197 cpu: 0.2%
Info:
  Processes: 234 Power: uptime: 22h 29m states: freeze,standby,mem,disk
    suspend: deep avail: s2idle,shallow wakeups: 3 hibernate: platform
    avail: shutdown, reboot, suspend, test_resume image: 6.18 GiB
    services: org_kde_powerdevil, power-profiles-daemon, upowerd Init: systemd
    v: 257 default: graphical tool: systemctl
  Compilers: clang: 20.1.8 gcc: 15.2.1 Shell: Zsh v: 5.9 default: Bash
    v: 5.3.3 running-in: konsole inxi: 3.3.39

[soundofthunder]

@donald

I have searched the forum but can’t find anything relating to this.

Neither can I, however, searching for segmentation fault (core dumped) reveals many instances; this isn’t overly helpful, though.

Please add more information for others to work with.

For example;

When the issue started, whether it was after any specific event – after installing something unrelated; after a certain update was performed; after a hard reset or shutdown; etc.

Please tell us the results of your own troubleshooting. Does the issue persist – in a fresh User account?; when reverting to another kernel - 6.12 (LTS); after switching to Wayland (recommended).

Have you made any hardware or configuration changes prior to noticing the issue? Have you ruled out possibly bad RAM as the culprit?

Regards,

[donald]

The issue started some time ago but I don’t use the khelpcenter often so thought I’d just wait and see if anyone else reported it or it dissapeared after a system update.

It does persist in a fresh user account.

I had previously searched the internet for the error message but not got anywhere.

I have just found a post on the KDE [KMail Crashes when started] which gives a workaround that seems to work for khelpcenter as well
as follows-

env MESA_LOADER_DRIVER_OVERRIDE=“llvmpipe” khelpcenter                                                                                               ─╯
glx: failed to create dri3 screen
failed to load driver: “llvmpipe”
GBM is not supported with the current configuration. Fallback to Vulkan rendering in Chromium.
 View::langLookup "kdoctools6-common/kde-default.css"
 View::langLookup "khelpcenter/glossary/index.docbook"
libva error: /usr/lib/dri/nouveau_drv_video.so init failed

this only seems to work from konsole and not from kde menu settings?

Issue still exist with kernel 6.1.2

[donald]

I switched to the propriety nvidia graphics driver and it doesn’t crash!
I don’t know if this should be reported somewhere but it works for me.
thanks for the help

[soundofthunder]

@donald

I don’t know if this should be reported somewhere but it works for me.

If for nothing else, at least your resolution is here for others to try, if they find themselves in a similar situation.

It’s good to know you found a workaround.

Regards.

---

@donald

Issue still exist with kernel 6.1.2

It was kernel 6.12 (LTS) that was suggested, although 6.6 (LTS) and 6.1 (LTS) are certainly available.

[donald]

Sorry I meant 6.12 LTS. It must have been too late at night