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xfwm4 (4.14.0-2) uses 100% CPU at startup


Description szajbot 2019-12-29 16:29:29 CET
Comment 1 szajbot 2019-12-29 16:35:04 CET
Whenever I start my laptop (with lightDM on debian bullseye), I see 100% cpu usage.
"top" shows, that it is xfwm4, that uses the whole CPU.

I need to "killall xfwm4" and then "xfwm4" to restart it. After this it is normal (very small cpu usege).

It is very annoying. It goes on for some time now (2 months maybe).

I have a PC with the same setup and it works properly.
Comment 2 Olivier Fourdan editbugs 2020-01-06 10:21:14 CET
Best would be to determine where it sends its time.

First, make sure you have the debug symbols installed, and capture the output of "gstack $(pidof xfwm4)" a few times in a a raw and attach the results here.

(gstack comes with gdb)
Comment 3 Git Bot editbugs 2020-05-29 12:32:57 CEST
-- GitLab Migration Automatic Message --

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Bug #16313

Reported by:
Reported on: 2019-12-29
Last modified on: 2020-05-29


Olivier Fourdan
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