I hope this helps: I see these errors in my syslog:
Nov 4 10:43:32 parse2 gnome-shell[4026701]: JS ERROR: TypeError:
windowActor is
null#012_addWindowEffect@resource:///org/gnome/shell/ui/closeDialog.js:90:28#012vfunc_show@resource:///org/gnome/shell/ui/closeDialog.js:162:14
Nov 4 11:17:38 parse2 gnome-shell[4026701]: message repeated 34072
times: [ JS ERROR: TypeError: null has no
properties#012_onFocusChanged@resource:///org/gnome/shell/ui/closeDialog.js:135:9]
Nov 4 10:51:50 parse2 gnome-shell[11582]:
[11584:11584:1104/105150.374036:ERROR:CONSOLE(1)] "[Shields]: Can't request
shields panel data. Error: No tab url specified", source:
chrome-extension://mnojpmjdmbbfme
jpflffifhffcmidifd/out/brave_extension_background.bundle.js (1)
Yet More Info:
While it was running slow, I did a gcore, and it showed a single active thread
(90% CPU) in the garbage collector. That may have nothing to do with this, but
who knows...
gnome-shell: 3.36.4
Ubuntu 20.04
Hardware: 64g memory, 1Tb NVME drive, Asus ROG Strix GeForce RTX 2060, 4
Monitors
Cores: 16 Threads: 32 AMD Ryzen 3950X
browser1 = brave tabs = 67
browser2 = firefox tabs= 64
various other windows Quake, rocketchat, Thunderbird, MATE terminal
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https://bugs.launchpad.net/bugs/1880405
Title:
High CPU and journal flooded with: JS ERROR: TypeError: null has no
properties
_onFocusChanged@resource:///org/gnome/shell/ui/closeDialog.js:135:9
Status in GNOME Shell:
Unknown
Status in gnome-shell package in Ubuntu:
Triaged
Bug description:
O.k. it is an old Lenovo thinkpad T410. However, in 18.04, 19.04 and 19.10 I
did face these problems. The sometimes I have to wait 10 seconds to see if a
window reacts or not. It is hard to use.
Installiert: 3.36.1-5ubuntu2
Installationskandidat: 3.36.2-1ubuntu1~20.04.1
Versionstabelle:
3.36.2-1ubuntu1~20.04.1 500
500 http://it.archive.ubuntu.com/ubuntu focal-updates/main amd64
Packages
*** 3.36.1-5ubuntu2 100
100 /var/lib/dpkg/status
3.36.1-5ubuntu1 500
500 http://it.archive.ubuntu.com/ubuntu focal/main amd64 Packages
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-shell 3.36.1-5ubuntu2
ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
Uname: Linux 5.4.0-29-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: GNOME-Classic:GNOME
Date: Sun May 24 15:43:34 2020
DisplayManager: gdm3
InstallationDate: Installed on 2020-02-05 (109 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
RelatedPackageVersions: mutter-common 3.36.2-1ubuntu1~20.04.1
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to focal on 2020-05-08 (15 days ago)
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