Software & AppsOperating SystemLinux

How To Change Default Resolution in Ubuntu Mate for Rpi2?

Ubuntu 12

In this comprehensive guide, we will walk you through the process of changing the default resolution in Ubuntu Mate for Raspberry Pi 2 (Rpi2). The steps provided here are simple and easy to follow, even if you are not a seasoned Ubuntu user.

Quick Answer

To change the default resolution in Ubuntu Mate for Raspberry Pi 2, you can either edit the config.txt file or use the raspi-config tool. Editing the config.txt file involves uncommenting the "disable_overscan=1" line, while using raspi-config allows you to select a resolution from a list of available options. After making the changes, remember to reboot your Raspberry Pi for the new resolution to take effect.

Understanding the Default Resolution Issue

Before we dive into the solution, it’s important to understand the problem. If you are using Ubuntu Mate on your Raspberry Pi 2, you might have noticed that the default resolution may be smaller than what you would prefer. This can make the text and images on your screen appear smaller and harder to read.

Method 1: Editing the config.txt File

The first method to change the default resolution involves editing the config.txt file. This file contains various settings that control the behavior of your Raspberry Pi.

Step 1: Open the Terminal

Open the terminal by clicking on the terminal icon on your desktop or by pressing Ctrl+Alt+T on your keyboard.

Step 2: Edit the config.txt File

In the terminal, type the following command:

sudo nano /boot/config.txt

The sudo command allows you to run commands with administrative privileges. The nano command opens the Nano text editor, and /boot/config.txt is the path to the file you want to edit.

Step 3: Modify the File

Look for the line that says #disable_overscan=1. The # symbol at the beginning of the line means that this line is commented out, i.e., it is not being read by the system.

Uncomment this line by removing the # symbol, so it reads disable_overscan=1. The disable_overscan parameter controls whether the system uses the entire screen or leaves a border around the edge.

Step 4: Save and Exit

Press Ctrl+X to exit Nano. You will be asked if you want to save your changes. Press Y to confirm, then press Enter to save the file.

Step 5: Reboot Your Raspberry Pi

Finally, reboot your Raspberry Pi to apply the changes. You can do this by typing the following command in the terminal:

sudo reboot

Method 2: Using raspi-config

Another way to change the default resolution is by using the raspi-config tool. This is a configuration tool that provides a simple interface for modifying various system settings.

Step 1: Open raspi-config

Open the terminal and type the following command:

sudo raspi-config

Step 2: Navigate to Advanced Options

Use the arrow keys to navigate to “Advanced Options” and press Enter.

Step 3: Change the Resolution

Select “Resolution” and press Enter. You will see a list of available resolutions. Select the resolution you want and press Enter.

Step 4: Reboot Your Raspberry Pi

As before, reboot your Raspberry Pi to apply the changes.

Conclusion

By following these steps, you should be able to change the default resolution for your Ubuntu Mate installation on the Raspberry Pi 2. Remember to reboot your system after making these changes to ensure they take effect. If you encounter any issues, refer to the official Ubuntu Mate documentation or the Raspberry Pi forums for additional help.

What is the purpose of changing the default resolution in Ubuntu Mate for Rpi2?

The purpose of changing the default resolution is to adjust the display settings to a resolution that is more suitable for your preferences, making text and images on the screen easier to read and view.

Can I change the default resolution without editing the config.txt file?

Yes, you can also change the default resolution using the raspi-config tool, which provides a simple interface for modifying system settings, including the resolution.

How can I open the terminal in Ubuntu Mate?

You can open the terminal by clicking on the terminal icon on your desktop or by pressing Ctrl+Alt+T on your keyboard.

How do I save and exit the nano text editor?

To save and exit the nano text editor, press Ctrl+X, then press Y to confirm saving the changes, and finally press Enter to exit.

Do I need to reboot my Raspberry Pi after changing the default resolution?

Yes, you need to reboot your Raspberry Pi for the changes to take effect. You can do this by typing sudo reboot in the terminal.

Leave a Comment

Your email address will not be published. Required fields are marked *