I can't download My graphic card

My graphic card doesnt appear on the settings and i dont know How to install It,its a GTX 550 TI.

Hi and welcome.

You are using a legacy nvidia card that is no longer directly supported.

This is what Brave A.I. search via Mojeek recommends (Zorin 18 is a fork of Ubuntu 24.04):

" Installation Steps for Legacy Support

  1. Add the PPA : The community has identified a specific PPA that contains the necessary patched driver version:
sudo add-apt-repository ppa:dtl131/nvidiaexp
sudo apt update
  1. Install the Driver : Attempt to install the 390 series driver using the specific package name:
sudo apt install nvidia-graphics-drivers-390

3.Note: If this package is unavailable in your specific repository configuration, you may need to manually download the .run installer from the NVIDIA website and install it, though this requires disabling the nouveau driver and stopping the display manager.*
4. Reboot and Verify : After installation, restart your system and verify the driver status:

inxi -G

Check if the driver column changes from nouveau to nvidia .

Important Limitations

  • Standard Repositories : The standard ubuntu-drivers devices command on Ubuntu 24.04 will not list a compatible proprietary driver for the GTX 550 Ti.
  • Kernel Compatibility : Installing legacy drivers on a modern kernel (e.g., 6.8+) can be unstable; the PPA method is the most reliable approach found for this specific hardware on Ubuntu 24.04.
  • Performance : Even with the 390 driver, performance may be limited compared to modern standards, and some newer features (like Wayland support or recent CUDA versions) may not function.

AI-generated answer. Please verify critical facts."

If you are successful, please note that Zorin defaults to the Wayland protocol which does not play nice with any nvidia card, so at the login screen when you select your username but before entering your password, a cog appears lower right. Click on this and change it to 'Zorin on xorg'.

Keep us posted.

When i try to run This command sudo apt install nvidia-graphics-drivers-390 It says couldnt find the packages,what do i do

Did you add the PPA as given in my last post?

Yes i did

Well I guess it means you are probably stuck with the open source driver for nvidia cards, nouveau, which is what I have always used, regardless of which distro as when I had a supported card, the nvidia proprietary blobs made things worse. Just remember to change to Zorin on xorg at login, you only need to do it once.

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I changed to zorin on xorg,but It still doesnt work the command

The Ubuntu Drivers does not carry the 390 driver on the Noble branch.

The best bet would be to use Zorin OS 17, rather than 18, then add the Kelebek Legacy repository.

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How do i Go to zorin 17

You can install it the same way that you installed Zorin OS 18.

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If you have performance problems with Zorin 17 core or fans are loud, you can give Zorin 17 Lite a try.

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