https://bugs.kde.org/show_bug.cgi?id=483848
Bug ID: 483848
Summary: Visual artifacts ("glitchy" lines) are present in the
CPU History graph
Classification: Applications
Product: plasma-systemmonitor
Version: 6.0.2
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: ksysguard-b...@kde.org
Reporter: bugs.kde....@slevel.xyz
CC: ahiems...@heimr.nl, plasma-b...@kde.org
Target Milestone: ---
Created attachment 167376
--> https://bugs.kde.org/attachment.cgi?id=167376&action=edit
A screenshot of the CPU usage graph, showing coloured vertical lines being
drawn around the graph data
SUMMARY
When viewing the History page of System Monitor, the default CPU graph contains
visual artifacts that look like vertical bars of opaque and semi-transparent
pixels that match the colors assigned to the CPU cores being displayed.
STEPS TO REPRODUCE
1. Open the System Monitor app
2. Switch to the History tab in the app's default configuration, or otherwise
view the CPU graph
OBSERVED RESULT
Colored lines that aren't part of the main graph's data appear on top of the
graph.
EXPECTED RESULT
The graph data would be visible without any extra visual artifacts
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.0.2
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Kernel Version: 6.8.1-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 8 × 12th Gen Intel® Core™ i3-12100
Memory: 15.4 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 730
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7D46
System Version: 1.0
ADDITIONAL INFORMATION
* I noticed this when I first updated to KDE 6 (which would correspond to
v6.0.1)
* This seems similar to Bug 434462, although the exact visual effect is
different in this case, and only a specific graph is affected
* I'm using integrated graphics on an Alder Lake CPU, and have not changed
drivers from the default
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