Disable CPU mitigations on Linux Mint

To disable mitigations on Linux Mint, you need to edit the GRUB configuration file and add a kernel parameter. Here are the steps to do that:

1. Open Terminal: You can open the terminal by searching for it in the application menu or by pressing Ctrl + Alt + T.
2. Edit GRUB Configuration:

   sudo nano /etc/default/grub
   

3. Modify the GRUB_CMDLINE_LINUX_DEFAULT Line: Find the line that starts with GRUB_CMDLINE_LINUX_DEFAULT. It usually looks something like this:

   GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
   

   Add mitigations=off to this line. After editing, it should look like this:

   GRUB_CMDLINE_LINUX_DEFAULT="quiet splash mitigations=off"
   

4. Update GRUB: Save the file and exit the editor (in nano, you can do this by pressing Ctrl + X, then Y, and Enter). Then update GRUB with the following command:

   sudo update-grub
   

5. Reboot: Reboot your system for the changes to take effect:

   sudo reboot
   

After rebooting, the mitigations should be disabled. You can verify this by checking the kernel command line:

cat /proc/cmdline

You should see mitigations=off in the output.