https://bugs.kde.org/show_bug.cgi?id=374802
Bug ID: 374802
Summary: plasmashell use 100% cpu and eat all system memory
when plug HDMI monitor (possibly infinite recursion)
Product: plasmashell
Version: 5.8.5
Platform: Kubuntu Packages
OS: Linux
Status: UNCONFIRMED
Severity: critical
Priority: NOR
Component: Multi-screen support
Assignee: aleix...@kde.org
Reporter: matteo.facchine...@sirius-es.it
CC: plasma-b...@kde.org
Target Milestone: 1.0
Created attachment 103303
--> https://bugs.kde.org/attachment.cgi?id=103303&action=edit
gdb backtrace of the plasmashell reported bug
KDE on ubuntu xenial-backports repositories installed on Kubuntu 16.04
Problem appears when plug an external monitor on HDMI port.
When plug the HDMI connector, plasmashell start to eating 100% of cpu and
system freeeze. No way to kill or stop plasmashell. System resources are
completely busy...
I was able to debug plasmashell attaching this process and then ctrl-c when
overload occurs.
After wait a lot of time that gdb response to my ctrl-c command, I see that
process eat all my system memory and with backtrace seems that plasmashell
enter in a infinite recursion of QQuickItem::setImplicitSize(double, double)()
calls.
In attachment a piece of backtrace callstack.
Problem is repetitive and occurs each time I try to connect my monitor. If
needed I can help giving more information about the bug.
I'm waiting to response.
Regards,
Matteo
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