How To Install lcdtest on Fedora 34

lcdtest is Displays monitor test patterns

Introduction

In this tutorial we learn how to install lcdtest on Fedora 34.

What is lcdtest

lcdtest is a utility to display LCD monitor test patterns. It may be useful for adjusting the pixel clock frequency and phase on LCD monitors when using analog inputs, and for finding pixels that are stuck on or off.

We can use yum or dnf to install lcdtest on Fedora 34. In this tutorial we discuss both methods but you only need to choose one of method to install lcdtest.

Install lcdtest on Fedora 34 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install lcdtest using dnf by running the following command:

sudo dnf -y install lcdtest

Install lcdtest on Fedora 34 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install lcdtest using yum by running the following command:

sudo yum -y install lcdtest

How To Uninstall lcdtest on Fedora 34

To uninstall only the lcdtest package we can use the following command:

sudo dnf remove lcdtest

lcdtest Package Contents on Fedora 34

/usr/bin/lcdtest
/usr/lib/.build-id
/usr/lib/.build-id/b7
/usr/lib/.build-id/b7/e4d57231678a3a84448d3fa72d305143f2b0e8
/usr/share/applications/lcdtest.desktop
/usr/share/doc/lcdtest
/usr/share/doc/lcdtest/COPYING
/usr/share/doc/lcdtest/README
/usr/share/man/man1/lcdtest.1.gz
/usr/share/pixmaps/lcdtest.svg

References

Summary

In this tutorial we learn how to install lcdtest on Fedora 34 using yum and dnf.