Fedora 43 - Hard lock - Live cd also shuts down computer on boot

I upgraded to Fedora 43 2-3 months ago. It ran well for awhile but after an update, it hard locks randomly and very often. I ran another dnf upgrade in terminal, which updated the kernel to -108. No change.

I have no discrete GPU. System does appear stable if left idle on the lock screen. Seems to hard lock quickly when launching things that make use of the GPU.

Moreover, I installed 6.17 via koji and the system still hard locks.

Passes memtest86.

Windows is stable.

Fedora 42 live cd is stable (I’m on this now).

When it hard locks, the system remains powered but unresponsive. Monitor loses signal. Fans remain on. Case lights remain on. But case power/reset buttons do not function. Must cycle the PSU power switch.

The Fedora 43 live cd simply shuts down my PC as if I had turned it off from the case’s power button. it simply shuts off while loading on the graphical boot screen.

 inxi -Fzxx
System:
  Kernel: 6.14.0-63.fc42.x86_64 arch: x86_64 bits: 64 compiler: gcc v: 15.0.1
  Console: pty pts/2 wm: kwin_wayland DM: SDDM Distro: Fedora Linux 42 (KDE
    Plasma Desktop Edition)
Machine:
  Type: Desktop System: Micro-Star product: MS-7C95 v: 1.0 serial: N/A
  Mobo: Micro-Star model: B550M PRO-VDH WIFI (MS-7C95) v: 1.0
    serial: <filter> Firmware: UEFI vendor: American Megatrends LLC. v: 2.L1
    date: 05/06/2024
Battery:
  Device-1: hidpp_battery_0 model: Logitech G305 Lightspeed Wireless Gaming
    Mouse serial: <filter> charge: 100% (should be ignored)
    status: discharging
CPU:
  Info: 6-core model: AMD Ryzen 5 5600G with Radeon Graphics bits: 64
    type: MT MCP arch: Zen 3 rev: 0 cache: L1: 384 KiB L2: 3 MiB L3: 16 MiB
  Speed (MHz): avg: 2367 min/max: 400/4465 boost: enabled cores: 1: 2367
    2: 2367 3: 2367 4: 2367 5: 2367 6: 2367 7: 2367 8: 2367 9: 2367 10: 2367
    11: 2367 12: 2367 bogomips: 93423
  Flags-basic: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a
    ssse3 svm
Graphics:
  Device-1: Advanced Micro Devices [AMD/ATI] Cezanne [Radeon Vega Series /
    Radeon Mobile Series] driver: amdgpu v: kernel arch: GCN-5 pcie:
    speed: 8 GT/s lanes: 16 ports: active: DP-1 empty: DP-2,HDMI-A-1
    bus-ID: 30:00.0 chip-ID: 1002:1638 temp: 27.0 C
  Display: unspecified server: X.Org v: 24.1.6 with: Xwayland v: 24.1.6
    compositor: kwin_wayland driver: dri: radeonsi gpu: amdgpu display-ID: :0
    screens: 1
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96
  Monitor-1: DP-1 model: Dell E2220H res: 1920x1080 hz: 60 dpi: 102
    diag: 546mm (21.5")
  API: EGL v: 1.5 platforms: device: 0 drv: radeonsi device: 1 drv: swrast
    gbm: drv: radeonsi surfaceless: drv: radeonsi x11: drv: radeonsi
    inactive: wayland
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 25.0.2 glx-v: 1.4
    direct-render: yes renderer: AMD Radeon Graphics (radeonsi renoir ACO DRM
    3.61 6.14.0-63.fc42.x86_64) device-ID: 1002:1638
  API: Vulkan v: 1.4.304 surfaces: xcb,xlib device: 0 type: integrated-gpu
    driver: mesa radv device-ID: 1002:1638 device: 1 type: cpu
    driver: mesa llvmpipe device-ID: 10005:0000
  Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
    de: kscreen-console,kscreen-doctor wl: wayland-info x11: xdriinfo,
    xdpyinfo, xprop, xrandr
Audio:
  Device-1: Advanced Micro Devices [AMD/ATI] Renoir Radeon High Definition
    Audio vendor: Micro-Star MSI driver: snd_hda_intel v: kernel pcie:
    speed: 8 GT/s lanes: 16 bus-ID: 30:00.1 chip-ID: 1002:1637
  Device-2: Advanced Micro Devices [AMD] Family 17h/19h/1ah HD Audio
    vendor: Micro-Star MSI driver: snd_hda_intel v: kernel pcie: speed: 8 GT/s
    lanes: 16 bus-ID: 30:00.6 chip-ID: 1022:15e3
  API: ALSA v: k6.14.0-63.fc42.x86_64 status: kernel-api
  Server-1: PipeWire v: 1.4.1 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
Network:
  Device-1: Intel Dual Band Wireless-AC 3168NGW [Stone Peak] driver: iwlwifi
    v: kernel pcie: speed: 2.5 GT/s lanes: 1 bus-ID: 29:00.0 chip-ID: 8086:24fb
  IF: wlp41s0 state: up mac: <filter>
  Device-2: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
    vendor: Micro-Star MSI driver: r8169 v: kernel pcie: speed: 2.5 GT/s
    lanes: 1 port: f000 bus-ID: 2a:00.0 chip-ID: 10ec:8168
  IF: enp42s0 state: down mac: <filter>
Bluetooth:
  Device-1: Intel Wireless-AC 3168 Bluetooth driver: btusb v: 0.8 type: USB
    rev: 2.0 speed: 12 Mb/s lanes: 1 bus-ID: 1-9:6 chip-ID: 8087:0aa7
  Report: btmgmt ID: hci0 rfk-id: 0 state: up address: <filter> bt-v: 4.2
    lmp-v: 8
Drives:
  Local Storage: total: 1.62 TiB used: 0 KiB (0.0%)
  ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 970 EVO Plus 1TB
    size: 931.51 GiB speed: 31.6 Gb/s lanes: 4 serial: <filter> temp: 25.9 C
  ID-2: /dev/sda vendor: Western Digital model: WD5000AAKS-22V1A0
    size: 465.76 GiB speed: 3.0 Gb/s serial: <filter> temp: 33 C
  ID-3: /dev/sdb vendor: Samsung model: SSD 850 EVO 250GB size: 232.89 GiB
    speed: 6.0 Gb/s serial: <filter> temp: 25 C
  ID-4: /dev/sdc model: USB DISK 3.0 size: 29.3 GiB type: USB rev: 3.2
    spd: 5 Gb/s lanes: 1 serial: <filter>
Partition:
  ID-1: / size: 11.75 GiB used: 575.5 MiB (4.8%) fs: overlay source: ERR-102
Swap:
  ID-1: swap-1 type: zram size: 8 GiB used: 0 KiB (0.0%) priority: 100
    dev: /dev/zram0
Sensors:
  System Temperatures: cpu: 33.6 C mobo: N/A gpu: amdgpu temp: 26.0 C
  Fan Speeds (rpm): N/A
Info:
  Memory: total: 60 GiB available: 58.74 GiB used: 4.87 GiB (8.3%)
  Processes: 373 Power: uptime: 35m wakeups: 0 Init: systemd v: 257
    target: graphical (5) default: graphical
  Packages: pm: rpm pkgs: N/A note: see --rpm Compilers: N/A Shell: Bash
    v: 5.2.37 running-in: konsole inxi: 3.3.40

```

Couldn’t find anything interesting in the logs either. All looked normal to me. No errors that stood out.

I’ve also tested:

switched PSUs.

unplugged everything not required (all sata / usb devices as I have nvme attached to motherboard).

Just flashed my BIOS to the latest. Reset to defaults first.

No change for the better. Fedora 43 is still unusable on my system, and so is the live cd.

Fedora 44 live cd boots successfully on 6.19 kernel.

OK after additional stress testing, PC shut down on Windows as well.

So this is probably a hardware issue.

Heisenberg.

have you run a memory test?

Also under windows intel has a cpu testing tool. You can get it from here https://www.intel.com/content/www/us/en/download/15951/intel-processor-diagnostic-tool.html

My Son’s Windows PC showed all the signs of memory issues but new RAM did not fix it. The Intel CPU diag reported that the “int maths” test failed. So we had to replace the CPU.

Yeah memtest86.

Also prime95 on Windows. Ran for 30 minutes.

But when I run a stress test on the IGPU with OCCT. The system immediately hard locks.

I’m hoping it’s just the motherboard.

Maybe cooling issue?
I’d check the fans spin and the fans and filters are free of dust.
If the system is old it might be that the thermal paste under the CPU is not working as well as it should.

Actually I suspected a hardware at first since this issue happened after switching to a new PSU and case.

I used air to clean the board and CPU cooler.

I’m usually super careful altho my screwdriver slipped a cpl times when putting the motherboard in. I don’t however see anything that appears to be obvious damage.

I did upgrade Fedora recently as well and thought maybe I forgot to reboot. It was very strange because system was stable before I realized GPU stress triggers it.

Anyway, temps are reporting normal. Hopefully not the IGPU. Prices for everything is insane these days. And I bought used to save a few bucks so I can’t warranty it out or use my card for extended warranty protection :frowning:

Even an old crappy discrete GPU with similar performance to the Ryzen 5600g is insane.

How long will Fedora/Linux support cards like the Radeon RX 550? Might be better off buying that instead if it turns out it’s my igpu.

nomodeset works beautifully for me.

My weather site’s weather radar map isn’t loading or loading too slowly but other than that, the system is usable enough with a crippled gpu.

It was the motherboard.

Reseated CPU on old motherboard first.

New motherboard resolved symptoms.

Fedora 43 live cd still shuts off my puter though. That’s kind of annoying. But 44 works.