How to Fix Kali Linux Black Screen After Login

Here are some of the steps you can take to fix the Kali Linux Black Screen issue.

1. Access a Text Terminal

Since the graphical interface is not loading, you will need to switch to a text-based terminal:

• For Virtual Machines:

Press Right Ctrl + F2.

• For Physical Machines:

Press Ctrl + Alt + F2 (try F1 to F6 if F2 doesn’t work).

Log in with your username and password.

2. Restart the Display Manager

The issue might be with the display manager (e.g., GDM3 or LightDM). Restart it using the following commands:

For GDM3 (GNOME Display Manager):

sudo dpkg-reconfigure gdm3

sudo service gdm3 restart

For LightDM:

sudo dpkg-reconfigure lightdm

sudo service lightdm restart

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3. Check for Corrupted Files

Corrupted system files can cause display issues.

To check and repair your filesystem:

sudo fsck /dev/sda1

Replace /dev/sda1 with your actual partition if it is different.

4. Investigate Xorg Server Issues

Examine the Xorg logs for any errors:

cat /var/log/Xorg.0.log

Look for lines marked with (EE) indicating errors. These can provide clues about what is causing the black screen.

5. Update Graphics Drivers

Outdated or incompatible graphics drivers can lead to display problems.

Update your system and install the appropriate drivers:

sudo apt update

sudo apt upgrade

sudo apt install xserver-xorg-video-intel (For Intel graphics)

sudo apt install xserver-xorg-video-nouveau (For NVIDIA graphics)

sudo apt install xserver-xorg-video-ati (For AMD/ATI graphics)

After installing the drivers, reboot your system:

sudo reboot

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6. Modify Boot Parameters

If the issue persists, try modifying the boot parameters:

1. Reboot your system and at the GRUB menu, select Kali Linux and press e to edit the boot parameters. 
2. Find the line starting with linux and add nomodeset at the end. 
3. Press F10 to boot with these parameters.

To make this change permanent:

sudo nano /etc/default/grub

Find the line starting with GRUB_CMDLINE_LINUX_DEFAULT and add nomodeset inside the quotes.

For example:

GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash nomodeset“

Save the file and update GRUB:

sudo update-grub

sudo reboot

7. Reinstall the Display Manager

If restarting the display manager did not help, try reinstalling it:

sudo apt-get purge lightdm

sudo apt-get update

sudo apt-get install lightdm

During installation, you will be prompted to choose a default display manager.

Select lightdm and proceed.

Read more: Debian vs Arch Linux: Choosing the Right Linux Distribution

8. Use Recovery Mode

If none of the above steps work, boot into recovery mode:

1. Reboot your system and at the GRUB menu, select “Advanced options for Kali” and then choose a recovery mode kernel. 
2. In recovery mode, you can attempt to repair the system or reinstall the desktop environment.

What is the kex Command?

The kex command is used to launch the Kali Linux desktop environment in a Windows Subsystem for Linux (WSL) setup. It is not applicable for standard Kali Linux installations. If you are using Windows Subsystem for Linux, you can start the Kali desktop environment with:

kex

For more options and details, refer to the official Kali documentation or the kex help command:

kex –help

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