Ubuntu 22.04 LTS, also known as Jammy Jellyfish, is the latest long-term support edition of the popular Linux distribution. One of the key aspects of this release is its support for the latest hardware technologies, including Intel’s Alder Lake processors. In this article, we will explore the support for Alder Lake in Ubuntu 22.04 LTS kernel and what you need to know about it.
The Ubuntu 22.04 LTS kernel, version 5.15.0-46-generic, may or may not have support for Intel Alder Lake processors. It is recommended to refer to the release notes or documentation for your specific kernel version to confirm if Alder Lake support is present.
Understanding Intel Alder Lake
Intel’s Alder Lake is the 12th generation of Intel Core processors. It introduces a hybrid architecture that combines high-performance cores with high-efficiency cores, similar to ARM’s big.LITTLE architecture. This design aims to provide a balance between high performance and energy efficiency.
Linux Kernel Support for Alder Lake
The Linux kernel, the heart of any Linux distribution, has added support for Alder Lake processors starting from version 5.15.35. This means that distributions running on this kernel version or later should theoretically support Alder Lake processors.
Ubuntu 22.04 LTS Kernel Version
Ubuntu 22.04 LTS ships with the 5.15.0-46-generic kernel. However, the version numbering can be a bit confusing. The “0” in 5.15.0-46-generic does not mean it’s an earlier version than 5.15.35. The “0” is part of Ubuntu’s version numbering scheme, and the “-46” indicates the Ubuntu version of the kernel.
Alder Lake Support in Ubuntu 22.04 LTS Kernel
While the mainline Linux kernel added support for Alder Lake in version 5.15.35, it doesn’t necessarily mean that this support is present in Ubuntu’s 5.15.0-46-generic kernel. Ubuntu kernel maintainers have the discretion to decide which changes to backport from the mainline kernel.
To check if your Ubuntu kernel has Alder Lake support, you can look at the release notes or documentation for your specific kernel version. If you’re comfortable with the command line, you can use the
uname -r command to check your kernel version.
This command will output your current kernel version. The
uname command prints system information, and the
-r option specifies that we want the kernel release information.
Sticking with LTS
If you’re using the LTS version of Ubuntu, it’s generally recommended to stick with the official Ubuntu kernel packages. These packages are updated automatically through the
sudo apt upgrade command.
sudo apt upgrade
sudo command allows you to run commands with administrative privileges,
apt is the package handling utility in Ubuntu, and
upgrade is the command to install available upgrades of all packages currently installed on the system from the sources configured via sources.list file.
While it’s possible to manually install mainline kernels, doing so could lead to instability or compatibility issues with Ubuntu’s ecosystem. The Ubuntu kernel maintainers typically backport important fixes and features to the LTS kernel versions, ensuring stability and compatibility.
In conclusion, while the mainline Linux kernel has added support for Intel Alder Lake processors in version 5.15.35, it’s not guaranteed that this support is present in Ubuntu’s 5.15.0-46-generic kernel. It’s recommended to refer to the release notes or documentation for your specific kernel version, or stick with the official Ubuntu kernel packages for automatic updates and compatibility with the Ubuntu ecosystem.
You can check your Ubuntu kernel version by using the
uname -r command in the terminal. This will display your current kernel version.
Ubuntu 22.04 LTS ships with the 5.15.0-46-generic kernel. The "0" in 5.15.0-46-generic does not indicate an earlier version than 5.15.35. It is part of Ubuntu’s version numbering scheme, and the "-46" indicates the Ubuntu version of the kernel.
It is generally recommended to stick with the official Ubuntu kernel packages, especially if you are using the LTS version. The Ubuntu kernel maintainers backport important fixes and features to the LTS kernel versions, ensuring stability and compatibility. Manually installing mainline kernels can lead to instability or compatibility issues with Ubuntu’s ecosystem.
For more information about Ubuntu 22.04 LTS and its features, you can visit the official Ubuntu website at ubuntu.com.
For details on Intel Alder Lake processors, you can visit the official Intel website at intel.com.