Public bug reported:
Every few seconds, xfwm4 has a spike of high CPU usage (from 0% to 6% or
7%). Whenever this happens, the entire computer freezes for 1 - 2
seconds. When frozen, everything on the screen freezes and I cannot
move the mouse or use the keyboard. After the freeze ends, everything
starts working again and CPU usage drops.
This started as soon as I rebooted after updating to Xubuntu 17.10 and
happens no matter what programs are opened. I have made sure that
everything is up to date with apt-get, and the freezes still happen.
The exact command line of the process causing trouble is "xfwm4
--replace".
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Ubuntu version: 17.10
Package version: xfwm4 4.12.4-0ubuntu1
Expected: The system should not freeze.
Happened: The system freezes every few seconds.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: xfwm4 4.12.4-0ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.1
Architecture: amd64
CurrentDesktop: XFCE
Date: Mon Oct 30 13:54:48 2017
ExecutablePath: /usr/bin/xfwm4
InstallationDate: Installed on 2017-01-17 (285 days ago)
InstallationMedia: Xubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
ProcEnviron:
LANGUAGE=en_US
PATH=(custom, user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: xfwm4
UpgradeStatus: Upgraded to artful on 2017-10-28 (2 days ago)
** Affects: xfwm4 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug artful
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https://bugs.launchpad.net/bugs/1728674
Title:
xfwm4 periodically causes seconds-long system freezes
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