https://bugs.kde.org/show_bug.cgi?id=506517
Bug ID: 506517
Summary: When panel is set to "Dodge Windows", dodging a window
results in increased CPU and GFX usage until panel is
revealed
Classification: Plasma
Product: plasmashell
Version First 6.4.2
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Panel
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: 1.0
Created attachment 182882
--> https://bugs.kde.org/attachment.cgi?id=182882&action=edit
amdgputop screenshot showing resource usage increase
SUMMARY
I have my panel set to dodge windows, and frequently, when maximizing a window
or moving a window over the panel (and thus hiding it), the system will show
increased CPU and Graphics usage by the plasmashell process and thus increased
power draw for the duration the panel is not visible.
Revealing the panel by restoring the window, moving the window out of the way
of the panel, or hovering the mouse over the panel restores normal idle CPU and
Graphics usage behavior.
On a laptop, this results in idle power jumping from 4W to nearly 12W, which is
wasteful and detrimental to battery life.
Attached amdgputop screenshot shows the resource usage increase described
above.
STEPS TO REPRODUCE
1. Set panel to dodge windows
2. Maximize or hover window over panel
3. Observe excessive CPU and GPU usage
OBSERVED RESULT
Excessive CPU and GPU usage
EXPECTED RESULT
Low to minimal CPU and GPU impact
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.4.2
KDE Frameworks Version: 6.15.0
Qt Version: 6.9.1
Kernel Version: 6.15.4-arch2-1 (64-bit)
Graphics Platform: Wayland
Processors: 20 × AMD Ryzen AI 9 365 w/ Radeon 880M
Memory: 32 GiB of RAM (30.5 GiB usable)
Graphics Processor: AMD Radeon 890M Graphics
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