Ubuntu 20.04下支持Intel 13900H核显驱动的内核版本咨询

Hi there! Let's work through your issue with the Intel 13900H integrated graphics on Ubuntu 20.04—right now your laptop's using CPU rendering because the default kernel doesn't support this newer hardware, so we'll fix that step by step.

First, a quick context check: Intel 13th Gen Core CPUs (like your 13900H) and their integrated UHD 770 graphics aren't compatible with Ubuntu 20.04's stock 5.4 LTS kernel. That kernel's too old to recognize this generation of hardware, which is why you're stuck with CPU-based rendering.

Here's what you need to know and do:

• Recommended kernel version: To get full, stable support for your 13900H's GPU, you'll need to upgrade to a kernel 5.17 or newer. For long-term reliability, I strongly suggest picking an LTS kernel like 6.2 or later—these have polished driver support specifically for 13th Gen Intel hardware.
• How to upgrade the kernel:
  1. Manually download the required kernel packages (linux-image, linux-headers, linux-modules) from Ubuntu's official kernel repository. Look for the latest LTS version (6.2+) that matches your amd64 system architecture.
  2. Once you've downloaded all the relevant .deb files, install them with this command:

     sudo dpkg -i linux-*.deb
     

  3. Reboot your laptop. It should boot into the new kernel automatically, but if not, select it from the GRUB menu during startup.
• Verify the GPU is working: After rebooting, run this command to confirm your system is using the integrated GPU instead of CPU rendering:

  glxinfo | grep "OpenGL renderer"
  

  You should see output referencing Intel's UHD Graphics 770 (e.g., OpenGL renderer string: Mesa Intel(R) UHD Graphics 770 (RPL-S)). If you still see llvmpipe in the output, double-check that you installed the correct kernel version.
• Optional media acceleration packages: For better performance with video playback and media tasks, install these additional driver packages:

  sudo apt install intel-media-va-driver-non-free intel-opencl-icd
  

If you hit any snags during the upgrade or still don't see the GPU being used, feel free to share more details about your system or error messages, and we can troubleshoot further!

备注：内容来源于stack exchange，提问作者Hayden Kim