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Roberto Leinardi
Asked: 2023-01-24 11:44:13 +0800 CST

How to make Ubuntu 22.04 work with a Radeon RX 7900 XTX?

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I know that for such new hardware would be better to use a rolling release distro or at least the latest 22.10, but I was wondering if with some tinkering it is still possible to get the latest LTS to work.

As far as I know, to get a 7900 XTX to work on linux you need at least these:

  1. Kernel 6.x+
  2. LLVM 15+
  3. Mesa 22.3+
  4. latest linux-firmware for /lib/firmware/amdgpu/ (and rebuild initramfs)

Is it possible and, if yes, what would be the best way to achieve this on Ubuntu 22.04 LTS?

kernel

1 Answers

  1. Best Answer

    To get an AMD Radeon RX 7900 XT(X) to work with Ubuntu 22.04 LTS, you can follow these steps:

    1. Install the latest OEM kernel available by running the command:
    sudo apt install linux-oem-22.04c
    1. Download and install the latest kernel firmware from here by running these commands:
    wget https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/snapshot/linux-firmware-20230117.tar.gz
tar -xf linux-firmware-20230117.tar.gz
sudo cp linux-firmware-20230117/amdgpu/* /lib/firmware/amdgpu/
sudo update-initramfs -uk 'all'
    1. Install the kisak-mesa PPT by running these commands (this PPA will take care of providing the latest stable mesa and llvm15):
    sudo add-apt-repository ppa:kisak/kisak-mesa
sudo apt upgrade
    1. Ensure there is no modprobe blacklist for amdgpu by running the command:
    sudo rm /etc/modprobe.d/blacklist-amdgpu.conf

    If you use Xorg instead of Wayland and have the issue where the mouse cursor is invisible, you can try to create the file /etc/X11/xorg.conf.d/99-modesetting.conf with the following content:

    Section "Device"
      Identifier "modesetting"
      Driver "modesetting"
EndSection

    This should make the latest LTS work with your hardware.

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