https://bugs.kde.org/show_bug.cgi?id=508550
Bug ID: 508550
Summary: System freezes on login to Plasma (Wayland) due to
"powerdevil" consuming 220%+ CPU
Classification: Plasma
Product: plasmashell
Version First master
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: Power management & brightness
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: 1.0
SUMMARY
System freezes on login to Plasma (Wayland) due to `powerdevil` consuming 220%+
CPU
STEPS TO REPRODUCE
1. Install Arch Linux and the `plasma-meta` package.
2. Log in to Plasma (Wayland) session via SDDM.
3. Wait for the loading gear animation to freeze.
OBSERVED RESULT
- Plasma session hangs after the gear animation freezes.
- Entire system becomes unresponsive.
- Switching to TTY shows `powerdevil` process consuming 220%+ CPU (confirmed
via `btop`).
- After killing `powerdevil` with `killall`, the system becomes responsive
again.
EXPECTED RESULT
Plasma (Wayland) session should start normally without `powerdevil` consuming
excessive CPU or freezing the system.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.1
Kernel Version: 6.16.1-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 4 × AMD Ryzen 3 3200U with Radeon Vega Mobile Gfx
Memory: 8 GiB of RAM (5.7 GiB usable)
Graphics Processor: AMD Radeon Vega 3 Graphics
Manufacturer: Acer
Product Name: Aspire A315-42
System Version: V1.08
ADDITIONAL INFORMATION
- The issue also occurs on live USB sessions of EndeavourOS and CachyOS (Plasma
Wayland).
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