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The problem is I can't access the Ubuntu graphical user interface.

I have two operating systems: Ubuntu and Windows 7 in the same computer. When I turn on the computer, I choose which OS I want to use.

GRUB menu

Normaly when I choose Ubuntu, it opens normally and I can use the graphical user interface.
But today when I tried to use Ubuntu, it demands me my login and password and then it's just the terminal that is open.

This is what is shown in screen after choosing Ubuntu:

Photo of screen after choosing Ubuntu from GRUB menu

After logging in, this is shown in the screen:

Photo of screen after logging in

I didn't have access to graphical user interface(GUI). Generally after choosing Ubuntu, this will be displayed:

Ubuntu graphical user interface

Also there's short message in the screen that says that there's a new version of Ubuntu 20.4. I wonder if I should update to solve the problem. How should I solve this problem? (I'm begginer in using Linux environment.)

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  • Can you please add a photo of the terminal window which you are able to see? Oct 23, 2020 at 10:57
  • i don't know how to do screen shot using command line and how to save the pic and tranfer it to wondows , but when i open linux , it s just like i oppened Terminal , and that s its , i can use command lines and i can see the files i have in linux and their contents , but dn't have LUbuntu Interface (the pic Obove ) please tell me for any other clarrification
    – Reda
    Oct 23, 2020 at 11:46
  • Take a picture with your smartphone and transfer it to the device from which you wrote this question and add the photo :) Oct 23, 2020 at 11:49
  • Yees , i tried to but when i click to add pics it dosen't downloaded !! can you pls tell me you email so i can send you the Captures ?
    – Reda
    Oct 23, 2020 at 12:01
  • Thank you very much
    – Reda
    Oct 23, 2020 at 12:09

2 Answers 2

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Try reinstalling gdm3:

sudo apt install --reinstall gdm3

or start gdm manually from TTY:

sudo gdm3

or install lightdm:

sudo apt install lightdm

or try to install drivers:

sudo ubuntu-drivers autoinstall
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try the following commands:

  • first: this will display the target being used

    $ systemctl get-default
    
  • second, you can actually run the follwing command to switch to the graphical- target

    $ systemctl isolate graphical-target
    

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