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Fixing AMD GPU-dkms Build Error in Kernel 5.8/5.8-xanmod on Ubuntu 20.04

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In this article, we will delve into the issue of the AMD GPU-dkms build error that occurs in Kernel 5.8/5.8-xanmod on Ubuntu 20.04. We will provide detailed solutions to help you overcome this problem and ensure your system runs smoothly.

Understanding the Issue

The AMD GPU-dkms is a package that provides the source code for the AMD GPU kernel module. This package is used to build the kernel module for your specific kernel version. However, when you try to build the AMD GPU-dkms in Kernel 5.8/5.8-xanmod, you may encounter a build error.

Solution 1: Install Kernel Headers

The first solution to this problem is to ensure you have the appropriate kernel headers installed for your specific kernel version. The kernel headers are necessary for building the kernel module.

You can download the headers from the Xanmod repository. For example, for the 5.8.16-xanmod1 version, you can download the headers from deb.xanmod.org/pool/main/l/linux-5.8.16-xanmod1.

Once you have downloaded the headers, you can install them using the package manager with the following command:

sudo dpkg -i linux-headers-5.8.16-xanmod1*.deb

In this command, dpkg -i is used to install the package, and the *.deb extension is used to specify the Debian package format.

Solution 2: Install AMDGPU Without DKMS

If installing the kernel headers does not resolve the issue, you can try installing the AMDGPU driver without DKMS. This can be done by running the following command:

./amdgpu-install --no-dkms

In this command, ./amdgpu-install is the script used to install the AMDGPU driver, and --no-dkms is an option that tells the script to install the driver without DKMS. Note that this method does not work with the pro version of the driver.

Solution 3: Use Out-of-the-Box Support

For newer generation AMD Renoir graphics, it is not necessary to install any proprietary drivers. The support for these graphics comes out-of-the-box on kernel versions 5.7 and above. In this case, you can simply uninstall the AMDGPU driver using the following command:

amdgpu-uninstall

This command uninstalls the AMDGPU driver from your system.

Enabling OpenCL

If you need to enable OpenCL, you can do so by specifying the installation with the following command:

./amdgpu-install --opencl=pal,legacy --no-dkms

In this command, --opencl=pal,legacy is an option that tells the script to install the OpenCL libraries, and --no-dkms is an option that tells the script to install the driver without DKMS.

Conclusion

Fixing the AMD GPU-dkms build error in Kernel 5.8/5.8-xanmod on Ubuntu 20.04 can be achieved by ensuring you have the correct kernel headers installed, installing the AMDGPU driver without DKMS, or using the out-of-the-box support for newer generation AMD Renoir graphics. By following the steps outlined in this article, you should be able to resolve this issue and ensure your system runs smoothly.

What is Kernel 5.8/5.8-xanmod?

Kernel 5.8/5.8-xanmod refers to a specific version of the Linux kernel. Xanmod is a custom kernel based on the official Linux kernel, with additional patches and optimizations for better performance and functionality.

Why does the AMD GPU-dkms build error occur in Kernel 5.8/5.8-xanmod?

The AMD GPU-dkms build error occurs in Kernel 5.8/5.8-xanmod due to compatibility issues between the AMD GPU-dkms package and the specific kernel version. This can result in a failure to build the AMD GPU kernel module.

How can I fix the AMD GPU-dkms build error in Kernel 5.8/5.8-xanmod?

There are several solutions to fix the AMD GPU-dkms build error in Kernel 5.8/5.8-xanmod. These include installing the appropriate kernel headers, installing the AMDGPU driver without DKMS, or using the out-of-the-box support for newer generation AMD Renoir graphics.

Where can I download the kernel headers for my specific kernel version?

You can download the kernel headers for your specific kernel version from the Xanmod repository. The headers can be found at deb.xanmod.org/pool/main/l/linux-<kernel-version>.

Can I install the AMDGPU driver without DKMS?

Yes, you can install the AMDGPU driver without DKMS. To do this, run the command ./amdgpu-install --no-dkms. Note that this method does not work with the pro version of the driver.

Do I need to install proprietary drivers for newer generation AMD Renoir graphics?

No, for newer generation AMD Renoir graphics, it is not necessary to install any proprietary drivers. The support for these graphics comes out-of-the-box on kernel versions 5.7 and above.

How can I enable OpenCL?

To enable OpenCL, you can use the command ./amdgpu-install --opencl=pal,legacy --no-dkms. This command installs the OpenCL libraries and the driver without DKMS.

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