双系统（Windows 10 Pro+Ubuntu 16.04 LTS）升级Nvidia驱动后进低图形模式求助

Hey there, I’ve dealt with this exact headache on dual-boot systems before—let’s get your Ubuntu desktop back up and running smoothly, step by step:

Step 1: Access the Text-Only Terminal (TTY) #

Since the graphical interface won’t load, reboot your system. As it starts booting, press Ctrl + Alt + F1 (or F2-F6 if F1 doesn’t respond) to switch to a text-only terminal. Log in using your Ubuntu username and password.

Step 2: Fully Uninstall the Problematic Nvidia Drivers #

We need to wipe out the faulty driver installation completely. Run these commands one after another:

• Purge all Nvidia-related packages:

  sudo apt purge nvidia-*
  

• Clean up leftover dependencies and cached files:

  sudo apt autoremove && sudo apt clean
  

• If you installed the driver manually via a .run file (not through Software & Updates), use the official uninstall script instead:

  sudo /usr/bin/nvidia-uninstall
  

Step 3: Revert to the Open-Source Nouveau Driver (Quick Fix) #

The open-source Nouveau driver is reliable for most setups and will get you back to the desktop fast:

1. Install the Nouveau driver:

   sudo apt install xserver-xorg-video-nouveau
   

2. Update the system’s initramfs to apply changes:

   sudo update-initramfs -u
   

Step 4: Reboot and Test the Graphical Interface #

Restart your system with:

sudo reboot

Once it boots up, you should be able to log into the desktop normally.

Optional: Install a Stable Nvidia Driver (If You Need It) #

If you rely on Nvidia’s proprietary driver for gaming or professional tools, stick to a version fully compatible with Ubuntu 16.04 LTS (newer drivers often cause conflicts on older releases):

1. Add the official graphics drivers PPA:

   sudo add-apt-repository ppa:graphics-drivers/ppa
   sudo apt update
   

2. Install a tested stable version (nvidia-384 works great with 16.04):

   sudo apt install nvidia-384
   

3. Update initramfs and reboot:

   sudo update-initramfs -u
   sudo reboot
   

If you still hit snags, double-check your GRUB boot entry—make sure nomodeset isn’t enabled unless your hardware specifically requires it. You can edit the GRUB menu temporarily during boot to remove that parameter if needed.

内容的提问来源于stack exchange，提问作者Subhadip Pal