KDE Plasma gets stuck sometimes

KDE Plasma gets stuck sometimes, the mouse doesn’t move, no key works, the only way to get back is to reboot. This might happen once throughout the day. I usually have 9-10 tabs open in a web browser (Ms Edge or Opera), Dolphin, GIMP at least for 8 hours.
This is my laptop,

$ inxi
CPU: Quad Core Intel Core i5-1035G1 (-MT MCP-) speed/min/max: 1055/400/3600 MHz 
Kernel: 5.10.11-arch1-1 x86_64 Up: 22m Mem: 2500.2/7638.9 MiB (32.7%) 
Storage: 476.94 GiB (3.2% used) Procs: 242 Shell: Bash inxi: 3.2.02 

Not a solution to your problem, but some good advice:

Instead of hard resetting, use the magic SysRq key. :wink:

Regarding your problem with Plasma, it could be anything. Maybe a graphics driver?

Post the output of inxi -Fxxxza

1 Like
inxi -Fxxxza
  Kernel: 5.10.11-arch1-1 x86_64 bits: 64 compiler: gcc v: 10.2.1 
  parameters: BOOT_IMAGE=/boot/vmlinuz-linux 
  root=UUID=3268aab1-568e-4707-9d9c-683e88391dea rw quiet loglevel=3 nowatchdog 
  Desktop: KDE Plasma 5.20.5 tk: Qt 5.15.2 wm: kwin_x11 dm: SDDM 
  Distro: EndeavourOS base: Arch Linux 
  Type: Laptop System: LENOVO product: 81VV v: Lenovo IdeaPad S340-14IIL 
  serial: <filter> Chassis: type: 10 v: Lenovo IdeaPad S340-14IIL serial: <filter> 
  Mobo: LENOVO model: LNVNB161216 v: SDK0J40700 WIN serial: <filter> UEFI: LENOVO 
  v: CUCN24WW(V1.13) date: 10/19/2020 
  ID-1: BAT1 charge: 28.1 Wh condition: 45.0/52.5 Wh (86%) volts: 11.6/11.2 
  model: Celxpert L18C3PF7 type: Li-ion serial: <filter> status: Discharging 
  cycles: 372 
  Info: Quad Core model: Intel Core i5-1035G1 bits: 64 type: MT MCP arch: Ice Lake 
  family: 6 model-id: 7E (126) stepping: 5 microcode: A0 L2 cache: 6 MiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 19048 
  Speed: 1000 MHz min/max: 400/3600 MHz Core speeds (MHz): 1: 1000 2: 1000 3: 1000 
  4: 985 5: 1000 6: 1004 7: 1000 8: 1001 
  Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled 
  Type: l1tf status: Not affected 
  Type: mds status: Not affected 
  Type: meltdown status: Not affected 
  Type: spec_store_bypass 
  mitigation: Speculative Store Bypass disabled via prctl and seccomp 
  Type: spectre_v1 
  mitigation: usercopy/swapgs barriers and __user pointer sanitization 
  Type: spectre_v2 mitigation: Enhanced IBRS, IBPB: conditional, RSB filling 
  Type: srbds status: Not affected 
  Type: tsx_async_abort status: Not affected 
  Device-1: Intel Iris Plus Graphics G1 vendor: Lenovo driver: i915 v: kernel 
  bus ID: 00:02.0 chip ID: 8086:8a56 
  Device-2: IMC Networks Integrated Camera type: USB driver: uvcvideo 
  bus ID: 1-6:3 chip ID: 13d3:56b2 
  Display: x11 server: X.org 1.20.10 compositor: kwin_x11 driver: loaded: intel 
  unloaded: fbdev,modesetting,vesa resolution: <missing: xdpyinfo> 
  OpenGL: renderer: Mesa Intel UHD Graphics (ICL GT1) v: 4.6 Mesa 20.3.3 
  direct render: Yes 
  Device-1: Intel Smart Sound Audio vendor: Lenovo driver: snd_hda_intel v: kernel 
  alternate: snd_sof_pci bus ID: 00:1f.3 chip ID: 8086:34c8 
  Sound Server: ALSA v: k5.10.11-arch1-1 
  Device-1: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter 
  vendor: Lenovo driver: ath10k_pci v: kernel port: 3040 bus ID: 02:00.0 
  chip ID: 168c:0042 
  IF: wlan0 state: up mac: <filter> 
  Device-2: Qualcomm Atheros type: USB driver: btusb bus ID: 1-10:4 
  chip ID: 0cf3:e500 
  Local Storage: total: 476.94 GiB used: 15.26 GiB (3.2%) 
  SMART Message: Unable to run smartctl. Root privileges required. 
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Intel model: SSDPEKNW512G8L 
  size: 476.94 GiB block size: physical: 512 B logical: 512 B speed: 31.6 Gb/s 
  lanes: 4 serial: <filter> rev: C02C temp: 29.9 C 
  ID-1: / raw size: 58.78 GiB size: 56.86 GiB (96.73%) used: 15.08 GiB (26.5%) 
  fs: ext4 dev: /dev/nvme0n1p11 maj-min: 259:11 
  ID-2: /boot/efi raw size: 1024 MiB size: 1022 MiB (99.80%) used: 189 MiB (18.5%) 
  fs: vfat dev: /dev/nvme0n1p10 maj-min: 259:10 
  Kernel: swappiness: 60 (default) cache pressure: 100 (default) 
  ID-1: swap-1 type: file size: 1024 MiB used: 0 KiB (0.0%) priority: -2 
  file: /swapfile 
  System Temperatures: cpu: 49.0 C mobo: N/A 
  Fan Speeds (RPM): N/A 
  Processes: 243 Uptime: 43m wakeups: 1 Memory: 7.46 GiB used: 2.58 GiB (34.5%) 
  Init: systemd v: 247 Compilers: gcc: 10.2.0 Packages: pacman: 1110 lib: 236 
  Shell: Bash v: 5.1.4 running in: konsole inxi: 3.2.02 

Today, KDE Plasma got stuck twice. Nothing helped other than rebooting. Anyone has any idea?