The log messages you mention seem to be describing symptoms of the
problem but not the cause.
In order to find the cause of the problem, first please try uninstalling
the 'gsconnect' extension and then reboot. Then tell us if the problem
still happens.
Please also run these commands and send us the output of each:
lspci -k
glxinfo | grep OpenGL
** Changed in: gnome-shell (Ubuntu)
Status: New => Incomplete
** Tags added: performance
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https://bugs.launchpad.net/bugs/1826219
Title:
Input locks frequently/high CPU usage after 18.10->19.04 upgrade
Status in gnome-shell package in Ubuntu:
Incomplete
Bug description:
I recently upgraded from 18.10 to 19.04.
What I expected to happen: same performance as before.
What happens instead:
- I experience frequent locks of input lasting from 0.5–5 seconds, during
which:
- The mouse cannot be moved or clicked.
- Any pressed key is repeated for the duration of the lock.
Various events seem to trigger the locks:
- Typing this bug report in Google Chrome (locks for 0.5 s every ~20–30 s).
- Changing tabs in Google Chrome (locks for 0.5 s).
- Changing tabs in the Atom editor (locks for 1–5 s).
- Typing in gedit with no other applications running (locks for ~0.5s).
Accompanying symptoms:
- CPU usage for gnome-shell is high:
- Always around 20%
- Appears to spike to 100% for longer locks (from eyeballing htop open in
gnome-terminal)
- The following appear in 'journalctl -f':
Apr 24 15:57:30 khaeru-laptop org.gnome.Shell.desktop[31679]: Key repeat
discarded, Wayland compositor doesn't seem to be processing events fast enough!
Apr 24 15:57:30 khaeru-laptop org.gnome.Shell.desktop[31679]: Window manager
warning: last_user_time (169670562) is greater than comparison timestamp
(169670067). This most likely represents a buggy client sending inaccurate
timestamps in messages such as _NET_ACTIVE_WINDOW. Trying to work around...
Apr 24 15:57:30 khaeru-laptop org.gnome.Shell.desktop[31679]: Window manager
warning: 0x1800001 appears to be one of the offending windows with a timestamp
of 169670562. Working around...
Apr 24 15:57:30 khaeru-laptop org.gnome.Shell.desktop[31679]: Window manager
warning: W1369 appears to be one of the offending windows with a timestamp of
1798201456. Working around...
- The following also appear:
Apr 24 15:59:59 khaeru-laptop org.gnome.Shell.desktop[31679]: libinput error:
client bug: timer event20 debounce: offset negative (-313ms)
Apr 24 15:59:59 khaeru-laptop org.gnome.Shell.desktop[31679]: libinput error:
client bug: timer event20 debounce short: offset negative (-326ms)
$ lsb_release -rd && apt-cache policy gnome-shell
Description: Ubuntu 19.04
Release: 19.04
gnome-shell:
Installed: 3.32.0+git20190410-1ubuntu1
Candidate: 3.32.0+git20190410-1ubuntu1
Version table:
*** 3.32.0+git20190410-1ubuntu1 500
500 http://us.archive.ubuntu.com/ubuntu disco/main amd64 Packages
100 /var/lib/dpkg/status
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: gnome-shell 3.32.0+git20190410-1ubuntu1
ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
Uname: Linux 5.0.0-13-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Apr 24 15:52:32 2019
DisplayManager: gdm3
EcryptfsInUse: Yes
InstallationDate: Installed on 2017-10-11 (559 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to disco on 2019-04-22 (2 days ago)
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