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I’d try the Ubuntu 25.10 myself, ie. a newer 6.17 kernel myself as a first step, even without install given its easy & can be done without anything being installed.. as if that works you have a clue available if you’re using Ubuntu 24.04 LTS (your details are unclear given Linux Mint detail included with it).
If you’re seeking help with Ubuntu, please remove the Linux Mint details (or make it clear you’ve tried that as well, ie. additional information only)
Try opening Software and Updates>Additional Drivers tab. If you are connected to the internet the utility will try to find a proprietary video drivers. It will need a little time.
LLVMpipe is an open source video driver that is used as a fallback if there are problems with loading other video drivers. The video quality is not great because it uses the CPU to render the screen and not the GPU.
AI reply which seems to be accurate in my experience.
In Ubuntu,
LLVMpipe is a software-based graphics renderer that uses the CPU for rendering instead of the dedicated GPU, acting as a fallback when proper GPU drivers aren’t loaded or detected, leading to slow performance in graphics-intensive tasks; it often indicates issues with driver installation, kernel compatibility (like needing an HWE kernel for newer Intel iGPUs), or Secure Boot preventing proprietary drivers from loading
The fact that the same situation happens on Linux Mint shows that it is not so much as a Ubuntu issue but a driver issue. I think that it is useful to know if the same problem happens on other distributions. Even other operating systems.
unfortunately no, I also had to boot using nomodeset. I even tried installing Ubuntu 25.10 to get a newer kernel and Mesa, but I’m still running into exactly the same problem.
As shown above, I have highlighted my graphics card, and the table indicates that this GPU must be force-probed. I have already tried enabling this by modifying the default GRUB configuration. However, after booting, the system still falls back to llvmpipe instead of using the GPU.
GRUB command used to force the driver: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.force_probe=E20B"
Can someone please tell me if I have done this correctly?