PC slowing to stop

English Install/Boot/Login
1

Tumbleweed (Latest) 16GB RAM Lenovo M920S Fresh rebuild about April; KDE Plasma (Latest); All software latest.
Programs running: Vivaldi/Thunderbird/Signal/Firefox/Krusader/ maybe RustDesk/Libreoffice.

Not sure this is the correct forum…
Have had this issue for a long time - have posted hopeful queries previously, with little response, but… Has happened over different hardware/different home directories etc.
The pc works fine, then fairly quickly slows until it refuses to respond to any input. Previously I had thought this was due to VirtualBox conflicting with ‘something’. (Thunderbird/Vivaldi??)
But have not used Virtual box now for about 6 months, and have had no issues. Has just started doing similar again. Only thing I can think, is that have been changing my remote desktop app recently from NoMachine, to Rustdesk - NoMachine seemed fine.
Have brought up the latest pre-reboot log, and, yes, is complaining about a slow system, but I am not good at reading logs… Anyone care to have a look and see if there is anything obvious…
Any other suggestions gratefully accepted - I am over it!!

Thanks.

2

Thermal problem? Open the case and check if there is a buildup of dust motes, and if the fans are spinning.

3

Thanks for the reply.
As I said, this has happened over different hardware(about 3 or 4 PCs over a couple of years…)/different logins/case is as clean as a case can be (well, not too much dust etc…) I worked in IT for many years…
In my mind, it HAS to be software incompatibility, or similar…?
But, will always try other options!

Thanks.

4

Swap involved? Use of swap can bring the system to a halt…

5

Don’t think so…
I check swap occasionally, and haven’t seen it being used at all…?

(But having said that, just checked swap, and, obviously haven’t enabled since the last rebuild… ) Don’t believe that is the issue, though…

Thanks.

6

@hornetster This system has an older intel gpu etc?

If it does, perhaps ensure the power-profiles daemon is installed and the service running, likewise add the following two kernel boot options;

update-bootloader --add-option intel_iommu=on
update-bootloader --add-option intel_pstate=passive
update-bootloader --config

But before doing the above, can you post the output from cpupower frequency-info and inxi -GSaz.

7 
john@boss:/etc> cpupower frequency-info
analyzing CPU 0:
  driver: intel_pstate
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  energy performance preference: balance_performance
  hardware limits: 800 MHz - 4.30 GHz
  available cpufreq governors: performance powersave
  current policy: frequency should be within 800 MHz and 4.30 GHz.
                  The governor "powersave" may decide which speed to use
                  within this range.
  current CPU frequency: Unable to call hardware
  current CPU frequency: 900 MHz (asserted by call to kernel)
  boost state support:
    Supported: yes
    Active: yes

john@boss:/etc> inxi -GSaz
System:
  Kernel: 7.1.5-1-default arch: x86_64 bits: 64 compiler: gcc v: 16.1.1
    clocksource: tsc avail: acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-7.1.5-1-default
    root=UUID=c97f525b-836c-4925-924a-63ff298e1398 splash=silent quiet
    security=selinux selinux=1 mitigations=auto
  Desktop: KDE Plasma v: 6.7.3 tk: Qt v: N/A info: frameworks v: 6.28.0
    wm: kwin_wayland tools: avail: xfce4-screensaver vt: 3 dm: 1: GDM v: 50.1
    2: LightDM v: 1.32.0 note: stopped 3: SDDM note: stopped Distro: openSUSE
    Tumbleweed 20260803
Graphics:
  Device-1: Intel CoffeeLake-S GT2 [UHD Graphics 630] vendor: Lenovo
    driver: i915 v: kernel arch: Gen-9.5 process: Intel 14nm built: 2016-20
    ports: active: DP-2 empty: DP-1, DP-3, HDMI-A-1, HDMI-A-2, HDMI-A-3
    bus-ID: 00:02.0 chip-ID: 8086:3e92 class-ID: 0300
  Device-2: Microdia USB 2.0 Camera driver: snd-usb-audio,uvcvideo type: USB
    rev: 2.0 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 1-7:3 chip-ID: 0c45:636b
    class-ID: 0102 serial: <filter>
  Display: wayland server: X.org v: 1.21.1.24 with: Xwayland v: 24.1.13
    compositor: kwin_wayland driver: X: loaded: modesetting unloaded: vesa
    alternate: fbdev,intel dri: iris gpu: i915 display-ID: 0
  Monitor-1: DP-2 model: Dell U3415W serial: <filter> built: 2018 res:
    mode: 3440x1440 hz: 60 scale: 100% (1) dpi: 109 gamma: 1.2
    size: 798x335mm (31.42x13.19") diag: 865mm (34.1") modes: max: 3440x1440
    min: 720x400
  API: EGL v: 1.5 hw: drv: intel iris platforms: device: 0 drv: iris
    device: 1 drv: swrast gbm: drv: iris surfaceless: drv: iris wayland:
    drv: iris x11: drv: iris
  API: OpenGL v: 4.6 vendor: intel mesa v: 26.1.6 glx-v: 1.4
    direct-render: yes renderer: Mesa Intel UHD Graphics 630 (CFL GT2)
    device-ID: 8086:3e92 memory: 14.97 GiB unified: yes display-ID: :1.0
  API: Vulkan v: 1.4.357 layers: 1 device: 0 type: integrated-gpu name: Intel
    UHD Graphics 630 (CFL GT2) driver: mesa intel v: 26.1.6
    device-ID: 8086:3e92 surfaces: N/A device: 1 type: cpu name: llvmpipe
    (LLVM 22.1.8 256 bits) driver: mesa llvmpipe v: 26.1.6 (LLVM 22.1.8)
    device-ID: 10005:0000 surfaces: N/A
  Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo de: kscreen-console,
    kscreen-doctor, xfce4-display-settings wl: wayland-info
    x11: xdpyinfo, xprop, xrandr
8

@hornetster ok, so proceed with the commands, reboot and see if that helps… I have similar hardware here :wink:

9

Thanks.

Off to bed… :grinning:
Tomorrow!

10

Done!
Will see how that goes…
Thanks.

11

@hornetster: If you spend a lot of time browsing the web using a Mozilla product, it may be worth reading my Isolated We Co thread if you haven’t already.

12

Interesting…
But, no, don’t generally use Mozilla (except Thunderbird…) Have actually found (I think…), that it is actually more stable WITH Firefox…?
Currently playing in Ubuntu, to see if there is any change…

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