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On a fresh install of 18.10 I attempted to install CPU usage widget

https://extensions.gnome.org/extension/120/system-monitor/

on that link it errors showing :

Although GNOME Shell integration extension is running, native host connector is not detected

pomsky
  • 70,557
Scott Stensland
  • 17,385

1 Answers1

62

On Ubuntu 22.04 clone the repo https://github.com/paradoxxxzero/gnome-shell-system-monitor-applet and do the manual install as per

sudo apt install gir1.2-gtop-2.0 gir1.2-nm-1.0 gir1.2-clutter-1.0 gnome-system-monitor  gettext

cd /tmp  #  could be anywhere ... once installed repo code not used
git clone git@github.com:paradoxxxzero/gnome-shell-system-monitor-applet.git


cd gnome-shell-system-monitor-applet
make install
reboot

If above fails on Ubuntu 22.04 then just use https://extensions.gnome.org/extension/3010/system-monitor-next/

Below is for 20.04 or earlier ...

First install this (its what appears in your error popup):

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install chrome-gnome-shell

However, on a new OS install you will still get errors until you also install these:

#  Ubuntu 20.04
sudo apt-get install libproxy1-plugin-networkmanager gnome-shell-extension-system-monitor

Ubuntu 19.10


sudo apt-get install gir1.2-nm-1.0

Or:

# pre Ubuntu 19.10
sudo apt-get install gir1.2-gtop-2.0 gir1.2-nm-1.0  gir1.2-clutter-1.0

Then bounce your GNOME Shell by typing:

  • Alt+F2, type r then Enter.

or bounce from a terminal by running

killall -3 gnome-shell

Now go back to

and turn on the monitor extension. The resource monitor widget will now appear on desktop top status bar.

UPDATE On Ubuntu 20.04, after doing the above, if it errors out, run the following in a terminal:

wget https://raw.githubusercontent.com/paradoxxxzero/gnome-shell-system-monitor-applet/fac6b7646346264bd75813a9d606dd5ba5152d6b/system-monitor%40paradoxxx.zero.gmail.com/extension.js -O ~/.local/share/gnome-shell/extensions/system-monitor@paradoxxx.zero.gmail.com/extension.js

Then bounce your GNOME Shell using:

  • Alt + F2, type r then Enter

I have run fresh installs of Ubuntu 20.04 on a handful of laptops and some work others fail to run this so the mystery continues...

UPDATE2 Apparently if you are running Chromium as a Snap in Ubuntu 20.04, this is a known bug. Using Firefox one can circumnavigate this issue and it should work.

PS and yes this also works for Ubuntu 21.10 ( as of May 21 2021 )

Scott Stensland
  • 17,385