Similar ERROR in /var/log/syslog for me on Ubuntu 20.10 with gnome-shell
3.38.1-1ubuntu1.1. Similar to comment #9 I have firefox with many tabs
and dissenter (brave fork) with many tabs open.

Jan  4 06:43:29 desktop01 gnome-shell[2096000]: JS ERROR: TypeError:
null has no
properties#012_onFocusChanged@resource:///org/gnome/shell/ui/closeDialog.js:135:9

Jan  4 06:43:30 desktop01 gnome-shell[2096000]: message repeated 35862
times: [ JS ERROR: TypeError: null has no
properties#012_onFocusChanged@resource:///org/gnome/shell/ui/closeDialog.js:135:9]

Jan  4 06:43:30 desktop01 gnome-shell[2096000]: 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

➜  ~ inxi -SMCG
System:    Host: desktop01 Kernel: 5.8.0-33-generic x86_64 bits: 64 Desktop: 
N/A Distro: Ubuntu 20.10 (Groovy Gorilla) 
Machine:   Type: Desktop System: ASUS product: All Series v: N/A serial: 
<superuser/root required> 
           Mobo: ASUSTeK model: X99-A v: Rev 1.xx serial: <superuser/root 
required> UEFI: American Megatrends v: 4101 
           date: 07/10/2019 
CPU:       Info: 6-Core model: Intel Core i7-5820K bits: 64 type: MT MCP L2 
cache: 15.0 MiB 
           Speed: 1765 MHz min/max: 1200/3600 MHz Core speeds (MHz): 1: 1626 2: 
1243 3: 1387 4: 1291 5: 1379 6: 1316 7: 1329 
           8: 1300 9: 1288 10: 1247 11: 1356 12: 1282 
Graphics:  Device-1: NVIDIA GK208B [GeForce GT 710] driver: nvidia v: 455.38 
           Display: x11 server: X.Org 1.20.9 driver: nvidia unloaded: 
fbdev,modesetting,nouveau,vesa resolution: 
           1: 2560x1080~60Hz 2: 1680x1050~60Hz 
           OpenGL: renderer: GeForce GT 710/PCIe/SSE2 v: 4.6.0 NVIDIA 455.38

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-shell in Ubuntu.
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)

To manage notifications about this bug go to:
https://bugs.launchpad.net/gnome-shell/+bug/1880405/+subscriptions

-- 
Mailing list: https://launchpad.net/~desktop-packages
Post to     : desktop-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~desktop-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to