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How do I make my display grayscale? - alredy tried this tutorial, but the folder name doesn't allow "/" in it.

I've tried doing it through Imagemagick, but couldn't properly install it.

Newbie on Linux. Thanks.

broade
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2 Answers2

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First, install git:

sudo apt update
sudo apt install git

Next, run the following commands to create the proper folder directory:

mkdir -p ~/.local/share/gnome-shell/extensions/

It may state that the directory already exists. You can ignore this error.

Then, run the following command to download the extension:

git clone https://github.com/laerne/desaturate_all.git

Finally, run the following command to move the files to the proper directory:

mv desaturate_all ".local/share/gnome-shell/extensions/desaturate_all@nicolas.brack.mail.be"

Now, you will need to restart Gnome. Press ALT+F2 and then press R and then press ENTER.

You can enable the extension by browsing to https://extensions.gnome.org/local

Click here for more information.

Please post any errors. Thanks!

mchid
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  • Don't forget to click to click the checkmark icon to the left of the answer to mark this as the accepted solution. Otherwise, post any errors. Thanks! – mchid Sep 17 '19 at 02:33
  • When I enter: sudo apt install git It results in: Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt --fix-broken install' to correct these. (continues in next comment) – broade Sep 20 '19 at 16:10
  • (continuing) The following packages have unmet dependencies: git : Depends: liberror-perl but it is not going to be installed Depends: git-man (> 1:2.17.1) but it is not going to be installed Depends: git-man (< 1:2.17.1-.) but it is not going to be installed stacer : Depends: gconf2 Depends: gconf-service Depends: python but it is not going to be installed E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution). – broade Sep 20 '19 at 16:11
  • So I type: apt --fix-broken install It results in: E: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: Permission denied) E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root? So I don't know what else to do. – broade Sep 20 '19 at 16:12
  • @broade You do not have permission because you need to use `sudo` when you run the command so run this instead: `sudo apt --fix-broken install` Please post any more errors. Thanks! – mchid Sep 20 '19 at 22:12
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There is a GNOME Extension for this. You can install this extension with one click form Desaturate All GNOME Extention by laerne. When you install extension, a picture icon appear on the taskbar. When you click, all desktop went to greyscale.

Utku Berberoğlu
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