Bug 434189

Summary: Memory Usage monitor rendering issues in panel
Product: [Plasma] plasmashell Reporter: Lastique <andysem>
Component: System Monitor widgetsAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: ahiemstra, nate, notmart
Priority: NOR Keywords: usability
Version First Reported In: 5.19.5   
Target Milestone: 1.0   
Platform: Kubuntu   
OS: Linux   
Latest Commit: https://invent.kde.org/plasma/libksysguard/commit/5fc25557316b05a1f0f0786b9221067553d99488 Version Fixed In: 5.22
Sentry Crash Report:
Attachments: Memory Usage widget in Text Only mode on a panel

Description Lastique 2021-03-09 15:30:28 UTC 
Created attachment 136527 [details]
Memory Usage widget in Text Only mode on a panel

This bug originates in https://bugs.kde.org/show_bug.cgi?id=350672.

The Memory Usage widget has various problems with rendering when placed on a horizontal panel.

- If you select Text Only mode and press Apply, nothing is displayed. This does not change if I drop sensors to the Text Only Sensors in the Sensor Details tab.
- Often, after changing display style and navigating settings tabs, Plasma crashes. (https://bugs.kde.org/show_bug.cgi?id=429585)
- If Plasma crashed and restarted while in Text Only style, some text appears. The text is abbreviated to "3.8 ..." (screenshot attached) in my case while there is 2.58 GiB of 16 Gib RAM allocated and 8MiB swap allocated (according to other widgets and System Monitor app). So I don't understand what number the widget shows.
- In Bar Chart mode, also nothing is displayed. But after a Plasma crash I've seen one bar displayed once.

Operating System: Kubuntu 20.10
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.74.0
Qt Version: 5.14.2
Kernel Version: 5.8.0-44-lowlatency
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-2600K CPU @ 3.40GHz
Memory: 15.6 GiB of RAM
Graphics Processor: GeForce RTX 2080 Ti/PCIe/SSE2
Comment 1 Bug Janitor Service 2021-04-29 10:38:26 UTC 
A possibly relevant merge request was started @ https://invent.kde.org/plasma/libksysguard/-/merge_requests/153
Comment 2 Bug Janitor Service 2021-04-29 14:31:50 UTC 
A possibly relevant merge request was started @ https://invent.kde.org/plasma/libksysguard/-/merge_requests/156
Comment 3 Arjen Hiemstra 2021-05-06 13:01:40 UTC 
Git commit 5fc25557316b05a1f0f0786b9221067553d99488 by Arjen Hiemstra.
Committed on 06/05/2021 at 13:01.
Pushed by ahiemstra into branch 'master'.

Base text-only face's minimum size on the preferred size of legend

Otherwise we only show two sets of "..." due to eliding both the label
and value of the sensors.
FIXED-IN: 5.22

M  +11   -14   faces/facepackages/textonly/contents/ui/CompactRepresentation.qml
M  +13   -0    faces/facepackages/textonly/contents/ui/GroupedText.qml

https://invent.kde.org/plasma/libksysguard/commit/5fc25557316b05a1f0f0786b9221067553d99488