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How To Enable Hibernate in Ubuntu 22.04 LTS

Posted on May 20, 2024 By admin No Comments on How To Enable Hibernate in Ubuntu 22.04 LTS

How To Enable Hibernate in Ubuntu 22.04 LTS

In this Ubuntu tutorial, we will show you how to enable the Hibernate power options in Ubuntu 22.04 LTS.

How To Enable Hibernate in Ubuntu 22.04 LTS

Let’s begin the process to enable hibernate in Ubuntu. At first, you need to make sure that the swap size of your Ubuntu and the installed memory size of your computer should be the same otherwise you won’t be able to enable hibernate feature.

Run the following command in the terminal to find the swap size of your Ubuntu with the following command:

swapon --show

You will see the swap size of your Ubuntu. If your swap size is smaller than the physical memory of your laptop or computer, then you need to increase the swap size of Ubuntu.

If swap size of Ubuntu is less, then go through the following steps.

You need to disable or turn off the current swap file so that you can increase the swap file size

sudo swapoff /swapfile

Run the following command to increase the swap file size. Here, we are going to increase the swap file size to 5 GB:

sudo dd if=/dev/zero of=/swapfile bs=1MB count=$((5*1024)) status=progress

It might take time to increase the swap file size.
After increasing the swap file size, you need to set the swap file permission to only the user readable and writable with the following command:

sudo chmod 600 /swapfile

Now, run the following command to format the swap file:

sudo mkswap /swapfile

After formatting the swap file, you need enable the newly created swap file. To do so,run the following command:

sudo swapon /swapfile

Now, run the following command to find the physical offset number of the swap file:

sudo filefrag -v /swapfile | head--lines=10

Now, run the following command to find the UUID of the root filesystem:

sudo blkid /dev/sda2

Now, it’s time to configure the GRUB bootloader so that you can have the feature of the hibernation. Open the GRUB configuration file /etc/default/grub with the “gedit” text editor as follows:

READ More Relevant Stuff:  Install Synaptic Package Manager On Ubuntu 20.04 LTS

sudo gedit >/etc/default/grub

Now, you should be careful here while providing the details. Add the text resume=UUID=<your-root-filesystem-UUID> resume_offset=<swapfile_physical_offset> at the end of the GRUB_CMDLINE_LINUX_DEFAULT Once you’re done, press <Ctrl> + S to save the file.

Now, Run the following command to update the GRUB loader.

sudo update-grub
How To Ubuntu, Ubuntu 22.04

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Fix the Laptop Brightness Problem In Ubuntu 22.04 LTS If you are having a problem with the brightness of your Laptop after installing Ubuntu 22.04 LTS then you are in the right place as we have a solution for it. There are multiple ways to fix the brightness problem in Ubuntu 22.04 LTS. How To Fix Brightness Problem In Ubuntu 22.04 LTS There are multiple ways to fix the brightness problem in Ubuntu 22.04 LTS. Method 1: In this very first method, we will take the help of software or app called "Brightness Controller". Run the following command to add PPA and install the Brightness Controller in Ubuntu 22.04 LTS. sudo add-apt-repository ppa:apandada1/brightness-controller sudo apt update sudo apt install brightness-controller Method 2: In this method, we will edit the Grub file to configure the setting and fix the brightness problem in Ubuntu 22.04 LTS. You need to open the file /etc/default/grub using gedit or any favorite editor of yours. sudo gedit /etc/default/grub After the file is open on editor, find the below line. GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" Change the above line to: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor" You might be wondering about the changes made by this update. These changes will load device-specific drivers in Linux. Save the file and close the text editor and run the following command to update the grub and restart your Ubuntu. after reboot, try adjusting the brightness using Laptop's dedicated control keys. update-grub Method 3: In this method, run the following command to find out the name of your display using the below command. xrandr | grep " connected" | cut -f1 -d " " So, the next is to change the brightness using the display name. xrandr --output system-display-name --brightness 0.7 Fix Brightness Problem In Ubuntu 22.04 LTS Ubuntu 22.04
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