https://bugs.kde.org/show_bug.cgi?id=527627
Bug ID: 527627
Summary: Large "History to show" values in line charts render
KDE unusable
Classification: Plasma
Product: plasmashell
Version First 6.7.5
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: System Monitor widgets
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Target Milestone: 1.0
Created attachment 197529
--> https://bugs.kde.org/attachment.cgi?id=197529&action=edit
This ZIP contains screenshots of the issue
DESCRIPTION
The "History to show" setting, when set to a high enough value, causes a
freeze. This persists after rebooting and renders the graphical UI completely
unusable.
The issue can be resolved by editing
~/.config/plasma-org.kde.plasma.desktop-appletsrc manually from a virtual
console. This, however, is inconvenient. I came across this bug when checking
whether I could make the "Disk usage" widget show the last 7 days of history.
STEPS TO REPRODUCE
1. Add any "System monitor sensor" widget to your desktop
2. Set "Display style" to "Line chart"
2. Set "History to show" to a large value, such as 600,000 seconds
3. Apply
OBSERVED RESULT
The widget allows the user to enter large values, saves it to
~/.config/plasma-org.kde.plasma.desktop-appletsrc, and causes Wayland session
freezes on every login.
EXPECTED RESULT
The widget handles large values appropriately by either enforcing a limit on
what values the user can input, or actually displays history from the previous
x seconds.
SOFTWARE/OS VERSIONS
Initially discovered on my host machine:
Operating System: Fedora Linux 44
KDE Plasma Version: 6.7.5
KDE Frameworks Version: 6.31.0
Qt Version: 6.11.2
Also occurs on a brand new Fedora KDE VM:
Operating System: Fedora Linux 44
KDE Plasma Version: 6.6.4
KDE Frameworks Version: 6.25.0
Qt Version: 6.10.2
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