[SOLVED] CENTOS 7.X / RHEL 7.X STUCK IN BLACK SCREEN AFTER LOGIN

In my case, GUI was displayed before I logged in. But after logging in, I was stuck in black screen (GUI didn't load).

Actually this issue is very easy to fix. But for those who don't know, follow these steps below (Don't worry, you don't have to reinstall Linux):

1. Press Ctrl + Alt + F7 (In my laptop F7, but it can be F1 - F7) to open CLI mode.

2. Press Ctrl + Alt + F6 to display login prompt.

3. Enter 'root' user & password.

4. Type 'yum update'.

5. After update completed, type 'reboot'

6. Now you should see GUI after logging in.