Hello KDE Community,

i am actually new to KDE and started to like it.

My system:

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System:
  Host: projectoc-linux Kernel: 5.18.1-arch1-1 arch: x86_64 bits: 64
    Desktop: KDE Plasma v: 5.24.5 Distro: EndeavourOS
Machine:
  Type: Desktop System: Gigabyte product: Z690 AORUS ELITE DDR4 v: N/A
    serial: <superuser required>
  Mobo: Gigabyte model: Z690 AORUS ELITE DDR4 v: x.x
    serial: <superuser required> UEFI: American Megatrends LLC. v: F7b
    date: 03/28/2022
CPU:
  Info: 16-core (8-mt/8-st) model: 12th Gen Intel Core i9-12900K bits: 64
    type: MST AMCP cache: L2: 14 MiB
  Speed (MHz): avg: 1160 min/max: 800/5200:3900 cores: 1: 785 2: 800 3: 783
    4: 801 5: 800 6: 801 7: 800 8: 800 9: 1271 10: 2860 11: 806 12: 1371
    13: 4822 14: 2257 15: 892 16: 800 17: 800 18: 800 19: 800 20: 800 21: 800
    22: 800 23: 800 24: 800
Graphics:
  Device-1: Intel AlderLake-S GT1 driver: i915 v: kernel
  Device-2: NVIDIA TU104 [GeForce RTX 2080 Rev. A] driver: nvidia
    v: 515.48.07
  Device-3: Logitech C920 HD Pro Webcam type: USB
    driver: snd-usb-audio,uvcvideo
  Display: wayland server: X.org v: 1.21.1.3 with: Xwayland v: 22.1.2
    compositor: kwin_wayland driver: X: loaded: intel,nvidia
    unloaded: modesetting gpu: i915,nvidia resolution: 1: 2560x1440
    2: 2560x1440
  OpenGL: renderer: NVIDIA GeForce RTX 2080/PCIe/SSE2
    v: 4.6.0 NVIDIA 515.48.07
Audio:
  Device-1: Intel Alder Lake-S HD Audio driver: snd_hda_intel
  Device-2: NVIDIA TU104 HD Audio driver: snd_hda_intel
  Device-3: C-Media Blue Snowball type: USB
    driver: hid-generic,snd-usb-audio,usbhid
  Device-4: XMOS JDS Labs Atom DAC type: USB driver: snd-usb-audio
  Device-5: Logitech C920 HD Pro Webcam type: USB
    driver: snd-usb-audio,uvcvideo
  Sound Server-1: ALSA v: k5.18.1-arch1-1 running: yes
  Sound Server-2: PipeWire v: 0.3.51 running: yes
Network:
  Device-1: Realtek RTL8125 2.5GbE driver: r8169
  IF: enp5s0 state: up speed: 1000 Mbps duplex: full mac: d8:5e:d3:ab:72:e7
  Device-2: ASUSTek ROG GLADIUS III WIRELESS type: USB
    driver: hid-generic,usbhid
Drives:
  Local Storage: total: 2.98 TiB used: 66.7 GiB (2.2%)
  ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 980 PRO 1TB
    size: 931.51 GiB
  ID-2: /dev/nvme1n1 vendor: Samsung model: SSD 970 EVO 500GB
    size: 465.76 GiB
  ID-3: /dev/sda vendor: Crucial model: CT525MX300SSD1 size: 489.05 GiB
  ID-4: /dev/sdb vendor: Samsung model: SSD 870 EVO 1TB size: 931.51 GiB
  ID-5: /dev/sdc vendor: Samsung model: SSD 850 EVO 250GB size: 232.89 GiB
Partition:
  ID-1: / size: 457.09 GiB used: 17.26 GiB (3.8%) fs: ext4
    dev: /dev/nvme1n1p2
  ID-2: /boot/efi size: 299.4 MiB used: 300 KiB (0.1%) fs: vfat
    dev: /dev/nvme1n1p1
Swap:
  Alert: No swap data was found.
Sensors:
  System Temperatures: cpu: 27.8 C mobo: 16.8 C
  Fan Speeds (RPM): N/A
Info:
  Processes: 360 Uptime: 5m Memory: 31.13 GiB used: 3.16 GiB (10.1%)
  Shell: Zsh inxi: 3.3.16


Packages:

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kde-cli-tools 5.24.5-1
kde-gtk-config 5.24.5-1
kdeclarative 5.94.0-1
kdeconnect 22.04.1-1
kdecoration 5.24.5-1
kded 5.94.0-1
kdelibs4support 5.94.0-1
kdesu 5.94.0-1
libblockdev 2.26-3
polkit-kde-agent 5.24.5-1
qt5-base 5.15.4+kde+r146-1
qt5-declarative 5.15.4+kde+r19-1
qt5-graphicaleffects 5.15.4+kde+r0-1
qt5-location 5.15.4+kde+r2-1
qt5-multimedia 5.15.4+kde+r1-1
qt5-quickcontrols 5.15.4+kde+r0-1
qt5-quickcontrols2 5.15.4+kde+r4-1
qt5-sensors 5.15.4+kde+r0-1
qt5-speech 5.15.4+kde+r1-1
qt5-svg 5.15.4+kde+r10-1
qt5-tools 5.15.4+kde+r0-1
qt5-translations 5.15.4+kde+r2-1
qt5-wayland 5.15.4+kde+r38-1
qt5-webchannel 5.15.4+kde+r3-1
qt5-x11extras 5.15.4+kde+r0-1


My Problem:
All my applications seem to close after 10-20 minutes of using my system. Restarting them doesn't work at all and I have to reboot my system to make it work again. I have this problem in xorg and in wayland.

Can somebody help me ?

The application windows close or can't you use them anymore? What kind of applications are you running, KDE only or also GTK or other third party applications?

First of all, please make sure you have a full installation and haven't missed any updates.

Running KSystemlog might be useful so you at least can see when something is happening in the log files

Hi!

Please have a look at `journalctl -b -p warning` which will show you all errors and warnings since last reboot. Which distribution did you install? Did you install the plasma-desktop manually?