https://bugs.kde.org/show_bug.cgi?id=426617
Bug ID: 426617
Summary: Dolphin 100% CPU core usage [Folders panel]
Product: dolphin
Version: 20.08.1
Platform: Other
OS: Linux
Status: REPORTED
Severity: critical
Priority: NOR
Component: panels: folders
Assignee: dolphin-bugs-n...@kde.org
Reporter: tonur...@gmail.com
CC: kfm-de...@kde.org
Target Milestone: ---
Dolphin will use increasing amounts of resources when the Folders panel is open
and there are sub-folders that can't be expanded.
[STEPS TO REPRODUCE]
1. Start Dolphin [Hidden Files Shown]
2. Toggle Folder panel
3. Open a directory that has sub-folders [in the second tree level] that can't
be expand.
4. Wait.
[OBSERVED RESULT]
Dolphin appears to endlessly recheck the sub-folders, testing to see if they
can be expanded. The expanding arrows targets can be seen flashing many times a
second next to any folder icons that can't expand.
The resource usage appears to grow the longer Dolphin is left in that state,
with the flashing becoming increasingly noticeable and system load growing.
Collapsing the open folder handle in the Folder panel causes the issue to stop.
[EXPECTED RESULT]
Dolphin shouldn't be doing this.
[SOFTWARE/OS VERSIONS]
Linux/KDE Plasma: 5.8.9-arch2-1 [64bit]
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.74.0
Qt Version: 5.15.1
[ADDITIONAL INFORMATION]
I reported the issue on 2020-09-08 as a comment to
https://bugs.kde.org/show_bug.cgi?id=411349 but as that ticket is dated to
2019, likely caused by an unrelated issue [with thumbnails], and no one has
responded... I'm reporting it here as it's own issue.
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