Can't start ubuntu-desktop after upgrade to 18.04












8















After the restart step of upgrading Ubuntu to 18.04, my system books to a tty instead of ubuntu-desktop. And when I enter my login name and password, I am still in the tty. This is happening again in every restart. How can I start the graphical desktop as normal?










share|improve this question

























  • Does it work if you press Ctrl+Alt+F7?

    – Olimjon
    May 4 '18 at 12:12













  • It is not exited by pressing Ctrl+Alt+F7.

    – dilde olupbiten
    May 4 '18 at 12:14













  • Which desktop environment are you selecting from the gear drop down menu next to the Sifn In button? The first four options don't work for me. Only the bottom option (Unity) works for me.

    – WinEunuuchs2Unix
    May 4 '18 at 12:16













  • I didn't see any options.

    – dilde olupbiten
    May 4 '18 at 12:18
















8















After the restart step of upgrading Ubuntu to 18.04, my system books to a tty instead of ubuntu-desktop. And when I enter my login name and password, I am still in the tty. This is happening again in every restart. How can I start the graphical desktop as normal?










share|improve this question

























  • Does it work if you press Ctrl+Alt+F7?

    – Olimjon
    May 4 '18 at 12:12













  • It is not exited by pressing Ctrl+Alt+F7.

    – dilde olupbiten
    May 4 '18 at 12:14













  • Which desktop environment are you selecting from the gear drop down menu next to the Sifn In button? The first four options don't work for me. Only the bottom option (Unity) works for me.

    – WinEunuuchs2Unix
    May 4 '18 at 12:16













  • I didn't see any options.

    – dilde olupbiten
    May 4 '18 at 12:18














8












8








8


4






After the restart step of upgrading Ubuntu to 18.04, my system books to a tty instead of ubuntu-desktop. And when I enter my login name and password, I am still in the tty. This is happening again in every restart. How can I start the graphical desktop as normal?










share|improve this question
















After the restart step of upgrading Ubuntu to 18.04, my system books to a tty instead of ubuntu-desktop. And when I enter my login name and password, I am still in the tty. This is happening again in every restart. How can I start the graphical desktop as normal?







18.04 gui






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share|improve this question













share|improve this question




share|improve this question








edited Jan 3 at 18:39









Zanna

50.3k13133241




50.3k13133241










asked May 4 '18 at 11:56









dilde olupbitendilde olupbiten

143117




143117













  • Does it work if you press Ctrl+Alt+F7?

    – Olimjon
    May 4 '18 at 12:12













  • It is not exited by pressing Ctrl+Alt+F7.

    – dilde olupbiten
    May 4 '18 at 12:14













  • Which desktop environment are you selecting from the gear drop down menu next to the Sifn In button? The first four options don't work for me. Only the bottom option (Unity) works for me.

    – WinEunuuchs2Unix
    May 4 '18 at 12:16













  • I didn't see any options.

    – dilde olupbiten
    May 4 '18 at 12:18



















  • Does it work if you press Ctrl+Alt+F7?

    – Olimjon
    May 4 '18 at 12:12













  • It is not exited by pressing Ctrl+Alt+F7.

    – dilde olupbiten
    May 4 '18 at 12:14













  • Which desktop environment are you selecting from the gear drop down menu next to the Sifn In button? The first four options don't work for me. Only the bottom option (Unity) works for me.

    – WinEunuuchs2Unix
    May 4 '18 at 12:16













  • I didn't see any options.

    – dilde olupbiten
    May 4 '18 at 12:18

















Does it work if you press Ctrl+Alt+F7?

– Olimjon
May 4 '18 at 12:12







Does it work if you press Ctrl+Alt+F7?

– Olimjon
May 4 '18 at 12:12















It is not exited by pressing Ctrl+Alt+F7.

– dilde olupbiten
May 4 '18 at 12:14







It is not exited by pressing Ctrl+Alt+F7.

– dilde olupbiten
May 4 '18 at 12:14















Which desktop environment are you selecting from the gear drop down menu next to the Sifn In button? The first four options don't work for me. Only the bottom option (Unity) works for me.

– WinEunuuchs2Unix
May 4 '18 at 12:16







Which desktop environment are you selecting from the gear drop down menu next to the Sifn In button? The first four options don't work for me. Only the bottom option (Unity) works for me.

– WinEunuuchs2Unix
May 4 '18 at 12:16















I didn't see any options.

– dilde olupbiten
May 4 '18 at 12:18





I didn't see any options.

– dilde olupbiten
May 4 '18 at 12:18










1 Answer
1






active

oldest

votes


















7














Try logging in to your default desktop environment from the tty virtual console. Login to the virtual console and run the following command.



sudo systemctl start graphical.target


If that doesn't work, switch the login display manager from gdm3 to lightdm.



sudo apt install lightdm  
sudo dpkg-reconfigure lightdm
sudo reboot


sudo dpkg-reconfigure lightdm will open up a new window allowing you to select lightdm as the default login display manager. Use the arrow keys to select lightdm and press the Tab key to put the focus on <OK> and press Enter. Then reboot by running this command: sudo reboot



If that doesn't work either see if you can at least switch to text mode (for troubleshooting purposes) with no GUI stuff like the X server running.



sudo systemctl start multi-user.target  





share|improve this answer


























  • sudo systemctl start graphical.target doesn't work. Also after sudo dpkg-reconfigure lightdm nothing happened but a message was printed to the console. The message was /usr/sbin/dpkg-reconfigure: lightdm is corrupt or not fully installed.

    – dilde olupbiten
    May 4 '18 at 12:35













  • I didn't see your edited message which is about installing lightdm. I am going to try this immediately.

    – dilde olupbiten
    May 4 '18 at 12:38











  • If your lock screen goes low resolution (because of lightdm), please comment and I'll tell you how to restore the lock screen back to normal. The keyboard combination of Windows key+L may work for that better than clicking the padlock lockscreen icon.

    – karel
    May 4 '18 at 12:53













  • Thank you very much. But the resolution of lock screen is fine as before.

    – dilde olupbiten
    May 4 '18 at 20:47











  • I had the same problem, and followed the instructions on this answer. But now, when I try to log in with lightdm, all I get is "login failed". Any ideas?

    – machetazo
    Aug 27 '18 at 14:02











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









7














Try logging in to your default desktop environment from the tty virtual console. Login to the virtual console and run the following command.



sudo systemctl start graphical.target


If that doesn't work, switch the login display manager from gdm3 to lightdm.



sudo apt install lightdm  
sudo dpkg-reconfigure lightdm
sudo reboot


sudo dpkg-reconfigure lightdm will open up a new window allowing you to select lightdm as the default login display manager. Use the arrow keys to select lightdm and press the Tab key to put the focus on <OK> and press Enter. Then reboot by running this command: sudo reboot



If that doesn't work either see if you can at least switch to text mode (for troubleshooting purposes) with no GUI stuff like the X server running.



sudo systemctl start multi-user.target  





share|improve this answer


























  • sudo systemctl start graphical.target doesn't work. Also after sudo dpkg-reconfigure lightdm nothing happened but a message was printed to the console. The message was /usr/sbin/dpkg-reconfigure: lightdm is corrupt or not fully installed.

    – dilde olupbiten
    May 4 '18 at 12:35













  • I didn't see your edited message which is about installing lightdm. I am going to try this immediately.

    – dilde olupbiten
    May 4 '18 at 12:38











  • If your lock screen goes low resolution (because of lightdm), please comment and I'll tell you how to restore the lock screen back to normal. The keyboard combination of Windows key+L may work for that better than clicking the padlock lockscreen icon.

    – karel
    May 4 '18 at 12:53













  • Thank you very much. But the resolution of lock screen is fine as before.

    – dilde olupbiten
    May 4 '18 at 20:47











  • I had the same problem, and followed the instructions on this answer. But now, when I try to log in with lightdm, all I get is "login failed". Any ideas?

    – machetazo
    Aug 27 '18 at 14:02
















7














Try logging in to your default desktop environment from the tty virtual console. Login to the virtual console and run the following command.



sudo systemctl start graphical.target


If that doesn't work, switch the login display manager from gdm3 to lightdm.



sudo apt install lightdm  
sudo dpkg-reconfigure lightdm
sudo reboot


sudo dpkg-reconfigure lightdm will open up a new window allowing you to select lightdm as the default login display manager. Use the arrow keys to select lightdm and press the Tab key to put the focus on <OK> and press Enter. Then reboot by running this command: sudo reboot



If that doesn't work either see if you can at least switch to text mode (for troubleshooting purposes) with no GUI stuff like the X server running.



sudo systemctl start multi-user.target  





share|improve this answer


























  • sudo systemctl start graphical.target doesn't work. Also after sudo dpkg-reconfigure lightdm nothing happened but a message was printed to the console. The message was /usr/sbin/dpkg-reconfigure: lightdm is corrupt or not fully installed.

    – dilde olupbiten
    May 4 '18 at 12:35













  • I didn't see your edited message which is about installing lightdm. I am going to try this immediately.

    – dilde olupbiten
    May 4 '18 at 12:38











  • If your lock screen goes low resolution (because of lightdm), please comment and I'll tell you how to restore the lock screen back to normal. The keyboard combination of Windows key+L may work for that better than clicking the padlock lockscreen icon.

    – karel
    May 4 '18 at 12:53













  • Thank you very much. But the resolution of lock screen is fine as before.

    – dilde olupbiten
    May 4 '18 at 20:47











  • I had the same problem, and followed the instructions on this answer. But now, when I try to log in with lightdm, all I get is "login failed". Any ideas?

    – machetazo
    Aug 27 '18 at 14:02














7












7








7







Try logging in to your default desktop environment from the tty virtual console. Login to the virtual console and run the following command.



sudo systemctl start graphical.target


If that doesn't work, switch the login display manager from gdm3 to lightdm.



sudo apt install lightdm  
sudo dpkg-reconfigure lightdm
sudo reboot


sudo dpkg-reconfigure lightdm will open up a new window allowing you to select lightdm as the default login display manager. Use the arrow keys to select lightdm and press the Tab key to put the focus on <OK> and press Enter. Then reboot by running this command: sudo reboot



If that doesn't work either see if you can at least switch to text mode (for troubleshooting purposes) with no GUI stuff like the X server running.



sudo systemctl start multi-user.target  





share|improve this answer















Try logging in to your default desktop environment from the tty virtual console. Login to the virtual console and run the following command.



sudo systemctl start graphical.target


If that doesn't work, switch the login display manager from gdm3 to lightdm.



sudo apt install lightdm  
sudo dpkg-reconfigure lightdm
sudo reboot


sudo dpkg-reconfigure lightdm will open up a new window allowing you to select lightdm as the default login display manager. Use the arrow keys to select lightdm and press the Tab key to put the focus on <OK> and press Enter. Then reboot by running this command: sudo reboot



If that doesn't work either see if you can at least switch to text mode (for troubleshooting purposes) with no GUI stuff like the X server running.



sudo systemctl start multi-user.target  






share|improve this answer














share|improve this answer



share|improve this answer








edited Dec 8 '18 at 11:22

























answered May 4 '18 at 12:18









karelkarel

57.6k12128146




57.6k12128146













  • sudo systemctl start graphical.target doesn't work. Also after sudo dpkg-reconfigure lightdm nothing happened but a message was printed to the console. The message was /usr/sbin/dpkg-reconfigure: lightdm is corrupt or not fully installed.

    – dilde olupbiten
    May 4 '18 at 12:35













  • I didn't see your edited message which is about installing lightdm. I am going to try this immediately.

    – dilde olupbiten
    May 4 '18 at 12:38











  • If your lock screen goes low resolution (because of lightdm), please comment and I'll tell you how to restore the lock screen back to normal. The keyboard combination of Windows key+L may work for that better than clicking the padlock lockscreen icon.

    – karel
    May 4 '18 at 12:53













  • Thank you very much. But the resolution of lock screen is fine as before.

    – dilde olupbiten
    May 4 '18 at 20:47











  • I had the same problem, and followed the instructions on this answer. But now, when I try to log in with lightdm, all I get is "login failed". Any ideas?

    – machetazo
    Aug 27 '18 at 14:02



















  • sudo systemctl start graphical.target doesn't work. Also after sudo dpkg-reconfigure lightdm nothing happened but a message was printed to the console. The message was /usr/sbin/dpkg-reconfigure: lightdm is corrupt or not fully installed.

    – dilde olupbiten
    May 4 '18 at 12:35













  • I didn't see your edited message which is about installing lightdm. I am going to try this immediately.

    – dilde olupbiten
    May 4 '18 at 12:38











  • If your lock screen goes low resolution (because of lightdm), please comment and I'll tell you how to restore the lock screen back to normal. The keyboard combination of Windows key+L may work for that better than clicking the padlock lockscreen icon.

    – karel
    May 4 '18 at 12:53













  • Thank you very much. But the resolution of lock screen is fine as before.

    – dilde olupbiten
    May 4 '18 at 20:47











  • I had the same problem, and followed the instructions on this answer. But now, when I try to log in with lightdm, all I get is "login failed". Any ideas?

    – machetazo
    Aug 27 '18 at 14:02

















sudo systemctl start graphical.target doesn't work. Also after sudo dpkg-reconfigure lightdm nothing happened but a message was printed to the console. The message was /usr/sbin/dpkg-reconfigure: lightdm is corrupt or not fully installed.

– dilde olupbiten
May 4 '18 at 12:35







sudo systemctl start graphical.target doesn't work. Also after sudo dpkg-reconfigure lightdm nothing happened but a message was printed to the console. The message was /usr/sbin/dpkg-reconfigure: lightdm is corrupt or not fully installed.

– dilde olupbiten
May 4 '18 at 12:35















I didn't see your edited message which is about installing lightdm. I am going to try this immediately.

– dilde olupbiten
May 4 '18 at 12:38





I didn't see your edited message which is about installing lightdm. I am going to try this immediately.

– dilde olupbiten
May 4 '18 at 12:38













If your lock screen goes low resolution (because of lightdm), please comment and I'll tell you how to restore the lock screen back to normal. The keyboard combination of Windows key+L may work for that better than clicking the padlock lockscreen icon.

– karel
May 4 '18 at 12:53







If your lock screen goes low resolution (because of lightdm), please comment and I'll tell you how to restore the lock screen back to normal. The keyboard combination of Windows key+L may work for that better than clicking the padlock lockscreen icon.

– karel
May 4 '18 at 12:53















Thank you very much. But the resolution of lock screen is fine as before.

– dilde olupbiten
May 4 '18 at 20:47





Thank you very much. But the resolution of lock screen is fine as before.

– dilde olupbiten
May 4 '18 at 20:47













I had the same problem, and followed the instructions on this answer. But now, when I try to log in with lightdm, all I get is "login failed". Any ideas?

– machetazo
Aug 27 '18 at 14:02





I had the same problem, and followed the instructions on this answer. But now, when I try to log in with lightdm, all I get is "login failed". Any ideas?

– machetazo
Aug 27 '18 at 14:02


















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