Strange Plasma lock-ups since 2026-06-26

On a few occasions since this update, my desktop has “semi” locked up. Although windows such as Konsole can still be interacted with as long as they’re already focussed, trying to activate any other window, or starting something from an icon on a panel takes so long it looks like it isn’t happening. And oddly, a panel which is set to auto-hide gets stuck in visible mode. Outside of the desktop, the computer is still responsive as normal; jobs running through systemd complete OK and I can get into a TTY OK.

Various searches have failed to find anything apparently related. Anyone have any suggestions?

It “seems” to be related to powerdevil, as that’s spamming the log with thousands of messages along the lines of:

[…] org_kde_powerdevil[1697]: […] Udev event detected          
[…] org_kde_powerdevil[1697]: […] Udev_Event_Detail            
[…] org_kde_powerdevil[1697]: […] prop_subsystem: i2c-dev           
[…] org_kde_powerdevil[1697]: […] prop_action: change           
[…] org_kde_powerdevil[1697]: […] prop_connector: (null)           
[…] org_kde_powerdevil[1697]: […] prop_devname: /dev/i2c-0           
[…] org_kde_powerdevil[1697]: […] prop_devmode: (null)           
[…] org_kde_powerdevil[1697]: […] prop_hotplug: (null)           
[…] org_kde_powerdevil[1697]: […] prop_major: 89           
[…] org_kde_powerdevil[1697]: […] prop_minor: 0           
[…] org_kde_powerdevil[1697]: […] sysname: i2c-0           
[…] org_kde_powerdevil[1697]: […] syspath: /sys/devices/pci0000:00/0000:00:08.1/0000:07:00.0/i2c-0/i2c-dev/i2c-0           
[…] org_kde_powerdevil[1697]: […] attr_name: AMDGPU DM i2c hw bus 0      
[…] org_kde_powerdevil[1697]: […] (dw_watch_display_connections) Time since last return from sleep = 118109090738647 ns = 118109091 ms
[…] org_kde_powerdevil[1697]: […] Udev event detected          
[…] org_kde_powerdevil[1697]: […] Udev_Event_Detail            
[…] org_kde_powerdevil[1697]: […] prop_subsystem: drm           
[…] org_kde_powerdevil[1697]: […] prop_action: change           
[…] org_kde_powerdevil[1697]: […] prop_connector: (null)           
[…] org_kde_powerdevil[1697]: […] prop_devname: /dev/dri/card1           
[…] org_kde_powerdevil[1697]: […] prop_devmode: (null)           
[…] org_kde_powerdevil[1697]: […] prop_hotplug: (null)           
[…] org_kde_powerdevil[1697]: […] prop_major: 226           
[…] org_kde_powerdevil[1697]: […] prop_minor: 1           
[…] org_kde_powerdevil[1697]: […] sysname: card1           
[…] org_kde_powerdevil[1697]: […] syspath: /sys/devices/pci0000:00/0000:00:08.1/0000:07:00.0/drm/card1           
[…] org_kde_powerdevil[1697]: […] attr_name: (null)           
[…] org_kde_powerdevil[1697]: […] (dw_watch_display_connections) Time since last return from sleep = 118109277190863 ns = 118109277 ms
[…] org_kde_powerdevil[1697]: […] Udev event detected          
[…] org_kde_powerdevil[1697]: […] Udev_Event_Detail            
[…] org_kde_powerdevil[1697]: […] prop_subsystem: i2c-dev           
[…] org_kde_powerdevil[1697]: […] prop_action: change           
[…] org_kde_powerdevil[1697]: […] prop_connector: (null)           
[…] org_kde_powerdevil[1697]: […] prop_devname: /dev/i2c-2           
[…] org_kde_powerdevil[1697]: […] prop_devmode: (null)           
[…] org_kde_powerdevil[1697]: […] prop_hotplug: (null)           
[…] org_kde_powerdevil[1697]: […] prop_major: 89           
[…] org_kde_powerdevil[1697]: […] prop_minor: 2           
[…] org_kde_powerdevil[1697]: […] sysname: i2c-2           
[…] org_kde_powerdevil[1697]: […] syspath: /sys/devices/pci0000:00/0000:00:08.1/0000:07:00.0/i2c-2/i2c-dev/i2c-2           
[…] org_kde_powerdevil[1697]: […] attr_name: AMDGPU DM i2c hw bus 2      
[…] org_kde_powerdevil[1697]: […] (dw_watch_display_connections) Time since last return from sleep = 118109435598967 ns = 118109436 ms
[…] org_kde_powerdevil[1697]: […] Udev event detected          
[…] org_kde_powerdevil[1697]: […] Udev_Event_Detail            
[…] org_kde_powerdevil[1697]: […] prop_subsystem: i2c-dev           
[…] org_kde_powerdevil[1697]: […] prop_action: change           
[…] org_kde_powerdevil[1697]: […] prop_connector: (null)           
[…] org_kde_powerdevil[1697]: […] prop_devname: /dev/i2c-1           
[…] org_kde_powerdevil[1697]: […] prop_devmode: (null)           
[…] org_kde_powerdevil[1697]: […] prop_hotplug: (null)           
[…] org_kde_powerdevil[1697]: […] prop_major: 89           
[…] org_kde_powerdevil[1697]: […] prop_minor: 1           
[…] org_kde_powerdevil[1697]: […] sysname: i2c-1           
[…] org_kde_powerdevil[1697]: […] syspath: /sys/devices/pci0000:00/0000:00:08.1/0000:07:00.0/i2c-1/i2c-dev/i2c-1           
[…] org_kde_powerdevil[1697]: […] attr_name: AMDGPU DM i2c hw bus 1      
[…] org_kde_powerdevil[1697]: […] (dw_watch_display_connections) Time since last return from sleep = 118109590167460 ns = 118109590 ms
[…] org_kde_powerdevil[1697]: […] Udev event detected          
[…] org_kde_powerdevil[1697]: […] Udev_Event_Detail            
[…] org_kde_powerdevil[1697]: […] prop_subsystem: i2c-dev           
[…] org_kde_powerdevil[1697]: […] prop_action: change           
[…] org_kde_powerdevil[1697]: […] prop_connector: (null)           
[…] org_kde_powerdevil[1697]: […] prop_devname: /dev/i2c-3           
[…] org_kde_powerdevil[1697]: […] prop_devmode: (null)           
[…] org_kde_powerdevil[1697]: […] prop_hotplug: (null)           
[…] org_kde_powerdevil[1697]: […] prop_major: 89           
[…] org_kde_powerdevil[1697]: […] prop_minor: 3           
[…] org_kde_powerdevil[1697]: […] sysname: i2c-3           
[…] org_kde_powerdevil[1697]: […] syspath: /sys/devices/pci0000:00/0000:00:08.1/0000:07:00.0/i2c-3/i2c-dev/i2c-3           
[…] org_kde_powerdevil[1697]: […] attr_name: AMDGPU DM i2c hw bus 3      
[…] org_kde_powerdevil[1697]: […] (dw_watch_display_connections) Time since last return from sleep = 118109744746433 ns = 118109745 ms
[…] org_kde_powerdevil[1697]: […] Udev event detected          
[…] org_kde_powerdevil[1697]: […] Udev_Event_Detail            
[…] org_kde_powerdevil[1697]: […] prop_subsystem: i2c-dev           
[…] org_kde_powerdevil[1697]: […] prop_action: change           
[…] org_kde_powerdevil[1697]: […] prop_connector: (null)           
[…] org_kde_powerdevil[1697]: […] prop_devname: /dev/i2c-4           
[…] org_kde_powerdevil[1697]: […] prop_devmode: (null)           
[…] org_kde_powerdevil[1697]: […] prop_hotplug: (null)           
[…] org_kde_powerdevil[1697]: […] prop_major: 89           
[…] org_kde_powerdevil[1697]: […] prop_minor: 4           
[…] org_kde_powerdevil[1697]: […] sysname: i2c-4           
[…] org_kde_powerdevil[1697]: […] syspath: /sys/devices/pci0000:00/0000:00:08.1/0000:07:00.0/drm/card1/card1-DP-1/i2c-4/i2c-dev/i2c-4           
[…] org_kde_powerdevil[1697]: […] attr_name: AMDGPU DM aux hw bus 1      
[…] org_kde_powerdevil[1697]: […] (dw_watch_display_connections) Time since last return from sleep = 118109899534898 ns = 118109900 ms
[…] org_kde_powerdevil[1697]: […] Udev event detected          
[…] org_kde_powerdevil[1697]: […] Udev_Event_Detail            
[…] org_kde_powerdevil[1697]: […] prop_subsystem: i2c-dev           
[…] org_kde_powerdevil[1697]: […] prop_action: change           
[…] org_kde_powerdevil[1697]: […] prop_connector: (null)           
[…] org_kde_powerdevil[1697]: […] prop_devname: /dev/i2c-5           
[…] org_kde_powerdevil[1697]: […] prop_devmode: (null)           
[…] org_kde_powerdevil[1697]: […] prop_hotplug: (null)           
[…] org_kde_powerdevil[1697]: […] prop_major: 89           
[…] org_kde_powerdevil[1697]: […] prop_minor: 5           
[…] org_kde_powerdevil[1697]: […] sysname: i2c-5           
[…] org_kde_powerdevil[1697]: […] syspath: /sys/devices/pci0000:00/0000:00:08.1/0000:07:00.0/drm/card1/card1-DP-2/i2c-5/i2c-dev/i2c-5           
[…] org_kde_powerdevil[1697]: […] attr_name: AMDGPU DM aux hw bus 2      
[…] org_kde_powerdevil[1697]: […] (dw_watch_display_connections) Time since last return from sleep = 118110054749449 ns = 118110055 ms
[…] org_kde_powerdevil[1697]: […] Udev event detected          
[…] org_kde_powerdevil[1697]: […] Udev_Event_Detail            
[…] org_kde_powerdevil[1697]: […] prop_subsystem: i2c-dev           
[…] org_kde_powerdevil[1697]: […] prop_action: change           
[…] org_kde_powerdevil[1697]: […] prop_connector: (null)           
[…] org_kde_powerdevil[1697]: […] prop_devname: /dev/i2c-6           
[…] org_kde_powerdevil[1697]: […] prop_devmode: (null)           
[…] org_kde_powerdevil[1697]: […] prop_hotplug: (null)           
[…] org_kde_powerdevil[1697]: […] prop_major: 89           
[…] org_kde_powerdevil[1697]: […] prop_minor: 6           
[…] org_kde_powerdevil[1697]: […] sysname: i2c-6           
[…] org_kde_powerdevil[1697]: […] syspath: /sys/devices/pci0000:00/0000:00:08.1/0000:07:00.0/drm/card1/card1-DP-3/i2c-6/i2c-dev/i2c-6           
[…] org_kde_powerdevil[1697]: […] attr_name: AMDGPU DM aux hw bus 3      
[…] org_kde_powerdevil[1697]: […] (dw_watch_display_connections) Time since last return from sleep = 118110209497267 ns = 118110209 ms
[…] org_kde_powerdevil[1697]: […] Udev event detected          
[…] org_kde_powerdevil[1697]: […] Udev_Event_Detail            
[…] org_kde_powerdevil[1697]: […] prop_subsystem: drm           
[…] org_kde_powerdevil[1697]: […] prop_action: change           
[…] org_kde_powerdevil[1697]: […] prop_connector: (null)           
[…] org_kde_powerdevil[1697]: […] prop_devname: /dev/dri/card1           
[…] org_kde_powerdevil[1697]: […] prop_devmode: (null)           
[…] org_kde_powerdevil[1697]: […] prop_hotplug: (null)           
[…] org_kde_powerdevil[1697]: […] prop_major: 226           
[…] org_kde_powerdevil[1697]: […] prop_minor: 1           
[…] org_kde_powerdevil[1697]: […] sysname: card1           
[…] org_kde_powerdevil[1697]: […] syspath: /sys/devices/pci0000:00/0000:00:08.1/0000:07:00.0/drm/card1           
[…] org_kde_powerdevil[1697]: […] attr_name: (null)           
[…] org_kde_powerdevil[1697]: […] (dw_watch_display_connections) Time since last return from sleep = 118116868333945 ns = 118116868 ms
[…] org_kde_powerdevil[1697]: […] Udev event detected          
[…] org_kde_powerdevil[1697]: […] Udev_Event_Detail            
[…] org_kde_powerdevil[1697]: […] prop_subsystem: i2c-dev           
[…] org_kde_powerdevil[1697]: […] prop_action: change           
[…] org_kde_powerdevil[1697]: […] prop_connector: (null)           
[…] org_kde_powerdevil[1697]: […] prop_devname: /dev/i2c-1           
[…] org_kde_powerdevil[1697]: […] prop_devmode: (null)           
[…] org_kde_powerdevil[1697]: […] prop_hotplug: (null)           
[…] org_kde_powerdevil[1697]: […] prop_major: 89           
[…] org_kde_powerdevil[1697]: […] prop_minor: 1           
[…] org_kde_powerdevil[1697]: […] sysname: i2c-1           
[…] org_kde_powerdevil[1697]: […] syspath: /sys/devices/pci0000:00/0000:00:08.1/0000:07:00.0/i2c-1/i2c-dev/i2c-1           
[…] org_kde_powerdevil[1697]: […] attr_name: AMDGPU DM i2c hw bus 1      
[…] org_kde_powerdevil[1697]: […] (dw_watch_display_connections) Time since last return from sleep = 118117045966065 ns = 118117046 ms
[…] org_kde_powerdevil[1697]: […] Udev event detected          
[…] org_kde_powerdevil[1697]: […] Udev_Event_Detail            
[…] org_kde_powerdevil[1697]: […] prop_subsystem: i2c-dev           
[…] org_kde_powerdevil[1697]: […] prop_action: change           
[…] org_kde_powerdevil[1697]: […] prop_connector: (null)           
[…] org_kde_powerdevil[1697]: […] prop_devname: /dev/i2c-4           
[…] org_kde_powerdevil[1697]: […] prop_devmode: (null)           
[…] org_kde_powerdevil[1697]: […] prop_hotplug: (null)           
[…] org_kde_powerdevil[1697]: […] prop_major: 89           
[…] org_kde_powerdevil[1697]: […] prop_minor: 4           
[…] org_kde_powerdevil[1697]: […] sysname: i2c-4           
[…] org_kde_powerdevil[1697]: […] syspath: /sys/devices/pci0000:00/0000:00:08.1/0000:07:00.0/drm/card1/card1-DP-1/i2c-4/i2c-dev/i2c-4           
[…] org_kde_powerdevil[1697]: […] attr_name: AMDGPU DM aux hw bus 1      
[…] org_kde_powerdevil[1697]: […] (dw_watch_display_connections) Time since last return from sleep = 118117199872901 ns = 118117200 ms
[…] org_kde_powerdevil[1697]: […] Udev event detected          
[…] org_kde_powerdevil[1697]: […] Udev_Event_Detail            
[…] org_kde_powerdevil[1697]: […] prop_subsystem: i2c-dev           
[…] org_kde_powerdevil[1697]: […] prop_action: change           
[…] org_kde_powerdevil[1697]: […] prop_connector: (null)           
[…] org_kde_powerdevil[1697]: […] prop_devname: /dev/i2c-5           
[…] org_kde_powerdevil[1697]: […] prop_devmode: (null)           
[…] org_kde_powerdevil[1697]: […] prop_hotplug: (null)           
[…] org_kde_powerdevil[1697]: […] prop_major: 89           
[…] org_kde_powerdevil[1697]: […] prop_minor: 5           
[…] org_kde_powerdevil[1697]: […] sysname: i2c-5           
[…] org_kde_powerdevil[1697]: […] syspath: /sys/devices/pci0000:00/0000:00:08.1/0000:07:00.0/drm/card1/card1-DP-2/i2c-5/i2c-dev/i2c-5           
[…] org_kde_powerdevil[1697]: […] attr_name: AMDGPU DM aux hw bus 2      
[…] org_kde_powerdevil[1697]: […] (dw_watch_display_connections) Time since last return from sleep = 118117357802331 ns = 118117358 ms
[…] org_kde_powerdevil[1697]: […] Udev event detected          
[…] org_kde_powerdevil[1697]: […] Udev_Event_Detail            
[…] org_kde_powerdevil[1697]: […] prop_subsystem: i2c-dev           
[…] org_kde_powerdevil[1697]: […] prop_action: change           
[…] org_kde_powerdevil[1697]: […] prop_connector: (null)           
[…] org_kde_powerdevil[1697]: […] prop_devname: /dev/i2c-2           
[…] org_kde_powerdevil[1697]: […] prop_devmode: (null)           
[…] org_kde_powerdevil[1697]: […] prop_hotplug: (null)           
[…] org_kde_powerdevil[1697]: […] prop_major: 89           
[…] org_kde_powerdevil[1697]: […] prop_minor: 2           
[…] org_kde_powerdevil[1697]: […] sysname: i2c-2           
[…] org_kde_powerdevil[1697]: […] syspath: /sys/devices/pci0000:00/0000:00:08.1/0000:07:00.0/i2c-2/i2c-dev/i2c-2           
[…] org_kde_powerdevil[1697]: […] attr_name: AMDGPU DM i2c hw bus 2      
[…] org_kde_powerdevil[1697]: […] (dw_watch_display_connections) Time since last return from sleep = 118117513631452 ns = 118117514 ms

(timestamps, etc removed for brevity)

inxi output:

  Kernel: 7.1.1-3-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 16.1.1
    clocksource: tsc avail: hpet,acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-7.1-x86_64
    root=UUID=44065c64-593e-46ce-8be7-c07b0a031786 rw udev.log_priority=3
    audit=0 consoleblank=0 sysrq_always_enabled=1 mitigations=off
    amdgpu.noretry=0 idle=nomwait amd_iommu=on iommu=pt libata.force=noncq
  Desktop: KDE Plasma v: 6.6.5 tk: Qt v: N/A info: frameworks v: 6.27.0
    wm: kwin_wayland vt: 1 dm: SDDM Distro: Manjaro base: Arch Linux
Machine:
  Type: Desktop Mobo: ASUSTeK model: PRIME A320M-K v: Rev X.0x
    serial: <superuser required> part-nu: SKU uuid: <superuser required>
    Firmware: UEFI vendor: American Megatrends v: 4011 date: 04/19/2018
CPU:
  Info: model: AMD Ryzen 3 2200G with Radeon Vega Graphics bits: 64 type: MCP
    arch: Zen level: v3 note: check built: 2017-19 process: GF 14nm
    family: 0x17 (23) model-id: 0x11 (17) stepping: 0 microcode: 0x810100B
  Topology: cpus: 1x dies: 1 clusters: 1 cores: 4 smt: <unsupported> cache:
    L1: 384 KiB desc: d-4x32 KiB; i-4x64 KiB L2: 2 MiB desc: 4x512 KiB L3: 4 MiB
    desc: 1x4 MiB
  Speed (MHz): avg: 2850 min/max: 1600/3850 boost: disabled scaling:
    driver: acpi-cpufreq governor: schedutil cores: 1: 2850 2: 2850 3: 2850
    4: 2850 bogomips: 30741
  Flags-basic: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3
    svm
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  Type: ghostwrite status: Not affected
  Type: indirect_target_selection status: Not affected
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: mmio_stale_data status: Not affected
  Type: old_microcode status: Not affected
  Type: reg_file_data_sampling status: Not affected
  Type: retbleed status: Vulnerable
  Type: spec_rstack_overflow status: Vulnerable
  Type: spec_store_bypass status: Vulnerable
  Type: spectre_v1 status: Vulnerable: __user pointer sanitization and
    usercopy barriers only; no swapgs barriers
  Type: spectre_v2 status: Vulnerable; IBPB: disabled; STIBP: disabled;
    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 status: Vulnerable
Graphics:
  Device-1: Advanced Micro Devices [AMD/ATI] Raven Ridge [Radeon Vega Series /
    Radeon Mobile Series] vendor: ASUSTeK PRIME driver: amdgpu v: kernel
    arch: GCN-5 code: Vega process: GF 14nm built: 2017-20 pcie: gen: 3
    speed: 8 GT/s lanes: 16 ports: active: HDMI-A-1 empty: DP-1,DP-2,DP-3
    bus-ID: 07:00.0 chip-ID: 1002:15dd class-ID: 0300 temp: 56.0 C
  Device-2: Realtek RTL2838 DVB-T driver: N/A type: USB rev: 2.0
    speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 1-6:2 chip-ID: 0bda:2838
    class-ID: 0000 serial: <filter>
  Device-3: Realtek RTL2838 DVB-T driver: N/A type: USB rev: 2.0
    speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 5-1:2 chip-ID: 0bda:2838
    class-ID: 0000 serial: <filter>
  Display: wayland server: X.org v: 1.21.1.23 with: Xwayland v: 24.1.12
    compositor: kwin_wayland driver: X: loaded: amdgpu unloaded: modesetting
    alternate: fbdev,vesa dri: radeonsi gpu: amdgpu display-ID: 0
  Monitor-1: HDMI-A-1 model: Samsung C24F390 serial: <filter> built: 2018
    res: 1920x1080 dpi: 94 gamma: 1.2 size: 521x293mm (20.51x11.54")
    diag: 598mm (23.5") ratio: 16:9 modes: max: 1920x1080 min: 720x400
  API: EGL v: 1.5 hw: drv: amd radeonsi platforms: device: 0 drv: radeonsi
    device: 1 drv: swrast gbm: drv: radeonsi surfaceless: drv: radeonsi wayland:
    drv: radeonsi x11: drv: radeonsi
  API: OpenGL v: 4.6 vendor: amd mesa v: 26.1.2-arch1.2 glx-v: 1.4
    direct-render: yes renderer: AMD Radeon Vega 8 Graphics (radeonsi raven ACO
    DRM 3.64 7.1.1-3-MANJARO) device-ID: 1002:15dd memory: 1000 MiB
    unified: yes display-ID: :1.0
  API: Vulkan v: 1.4.350 layers: 2 device: 0 type: integrated-gpu name: AMD
    Radeon Vega 8 Graphics (RADV RAVEN) driver: mesa radv v: 26.1.2-arch1.2
    device-ID: 1002:15dd surfaces: N/A
  Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
    de: kscreen-console,kscreen-doctor gpu: radeontop wl: swaymsg,wayland-info
    x11: xdpyinfo, xprop, xrandr
Audio:
  Device-1: Advanced Micro Devices [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP
    Audio vendor: ASUSTeK PRIME B450M-A driver: snd_hda_intel v: kernel pcie:
    gen: 3 speed: 8 GT/s lanes: 16 bus-ID: 07:00.1 chip-ID: 1002:15de
    class-ID: 0403
  Device-2: Advanced Micro Devices [AMD] Ryzen HD Audio
    vendor: ASUSTeK PRIME B450M-A driver: snd_hda_intel v: kernel pcie: gen: 3
    speed: 8 GT/s lanes: 16 bus-ID: 07:00.6 chip-ID: 1022:15e3 class-ID: 0403
  API: ALSA v: k7.1.1-3-MANJARO status: kernel-api with: aoss
    type: oss-emulator tools: alsactl,alsamixer,amixer
  Server-1: sndiod v: N/A status: off tools: aucat,midicat,sndioctl
  Server-2: JACK v: 1.9.22 status: off tools: jack_control
  Server-3: PipeWire v: 1.6.6 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 RTL8111H driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s
    lanes: 1 port: f000 bus-ID: 05:00.0 chip-ID: 10ec:8168 class-ID: 0200
  IF: enp5s0 state: up speed: 100 Mbps duplex: full mac: <filter>
  IF-ID-1: ifb0 state: unknown speed: N/A duplex: N/A mac: <filter>
  IF-ID-2: tun0 state: unknown speed: N/A duplex: N/A mac: N/A
  Info: services: httpd, ntpd, sshd, systemd-timesyncd
Drives:
  Local Storage: total: 14.74 TiB used: 5.26 TiB (35.7%)
  ID-1: /dev/sda maj-min: 8:0 vendor: Western Digital
    model: WDS120G2G0A-00JH30 size: 111.8 GiB block-size: physical: 512 B
    logical: 512 B speed: 6.0 Gb/s tech: SSD serial: <filter> fw-rev: 0000
    scheme: MBR
  SMART Message: Unknown smartctl error. Unable to generate data.
  ID-2: /dev/sdb maj-min: 8:16 vendor: Seagate model: ST8000VN004-3CP101
    size: 7.28 TiB block-size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s
    tech: HDD rpm: 7200 serial: <filter> fw-rev: SC60 scheme: GPT
  SMART Message: Unknown smartctl error. Unable to generate data.
  ID-3: /dev/sdc maj-min: 8:32 vendor: Western Digital
    model: WD64PURZ-74BWUY0 size: 5.46 TiB block-size: physical: 4096 B
    logical: 512 B speed: 6.0 Gb/s tech: HDD rpm: 5400 serial: <filter>
    fw-rev: 0A80 scheme: GPT
  SMART Message: Unknown smartctl error. Unable to generate data.
  ID-4: /dev/sdd maj-min: 8:48 vendor: Intel model: SSDSC2BB080G4
    size: 74.53 GiB block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
    tech: SSD serial: <filter> fw-rev: 0355 scheme: MBR
  SMART Message: Unknown smartctl error. Unable to generate data.
  ID-5: /dev/sde maj-min: 8:64 vendor: Western Digital
    model: WD20SDRW-11VUUS0 size: 1.82 TiB block-size: physical: 512 B
    logical: 512 B type: USB rev: 3.2 spd: 5 Gb/s lanes: 1 mode: 3.2 gen-1x1
    tech: HDD rpm: 5400 serial: <filter> fw-rev: 1034 scheme: GPT
  SMART Message: A mandatory SMART command failed. Various possible causes.
Partition:
  ID-1: / raw-size: 29.3 GiB size: 28.67 GiB (97.86%) used: 21.02 GiB (73.3%)
    fs: ext4 block-size: 4096 B dev: /dev/sda1 maj-min: 8:1
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
    used: 4.1 MiB (1.4%) fs: vfat block-size: 512 B dev: /dev/sda3 maj-min: 8:3
  ID-3: /home raw-size: 82.2 GiB size: 80.36 GiB (97.75%)
    used: 39.91 GiB (49.7%) fs: ext4 block-size: 4096 B dev: /dev/sda2
    maj-min: 8:2
  ID-4: /var/tmp raw-size: 150 GiB size: 146.59 GiB (97.72%)
    used: 5.92 GiB (4.0%) fs: ext4 block-size: 4096 B dev: /dev/dm-4
    maj-min: 253:4 mapped: 8T-vartmp
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: yes
    compressor: zstd max-pool: 20%
  ID-1: swap-1 type: partition size: 13.67 GiB used: 1.49 GiB (10.9%)
    priority: 200 dev: /dev/sdd4 maj-min: 8:52
  ID-2: swap-2 type: partition size: 14.65 GiB used: 0 KiB (0.0%) priority: 2
    dev: /dev/sdb1 maj-min: 8:17
Sensors:
  System Temperatures: cpu: 58.0 C mobo: 44.0 C gpu: amdgpu temp: 58.0 C
  Fan Speeds (rpm): cpu: 1313 fan-2: 1486
  Power: 12v: N/A 5v: N/A 3.3v: 3.29 vbat: 3.16
Info:
  Memory: total: 32 GiB note: est. available: 30.28 GiB used: 5.87 GiB (19.4%)
  Processes: 337 Power: uptime: 14h 46m states: freeze,mem,disk suspend: deep
    avail: s2idle wakeups: 0 hibernate: platform avail: shutdown, reboot,
    suspend, test_resume image: 12.06 GiB services: org_kde_powerdevil
    Init: systemd v: 260 default: graphical tool: systemctl
  Packages: 2079 pm: pacman pkgs: 2072 libs: 369 tools: octopi,pamac,yay
    pm: flatpak pkgs: 7 Compilers: gcc: 16.1.1 Shell: Zsh v: 5.9.1
    running-in: konsole inxi: 3.3.41

it looks like the same block of messages is repeated, and is indeed powerdevil trying to communicate with your AMD GPU via i2c.

Timestamps here may actually be helpful because the log entry includes Time since last return from sleep = 118117513631452 ns = 118117514 ms.

Additionally there is likely other related entries in your log related to this issue that haven’t been captured by filtering for powerdevil. Also you haven’t mentioned when these issues occur, the log suggests the system at least thinks it is returning from sleep but you have not mentioned that.

You may need to set some udev rules to prevent the AMD card from dropping into low power mode: AMDGPU - ArchWiki

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After plasma got next version updates installed, a few days for my PC it is common to partly freeze: taskbar behaves like screenshot picture without response, start menu calls ignoring, fast execution Alt-Space works but if to call System Settings window, it never opens. For me it normal for a few years. In my case simple reboot is the cure, even without cache folder cleanup.

Also you could check your system for any *.pacnew files (DIFFPROG=meld pacdiff -s) and process them also.

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