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Yesterday i install gdm and set it default display manager then l notice ubuntu is running but there is several lines appear on desktop when i want to shutdown system after i powered off system and start Grub Menu appear and normal boot system but nothing is appear and black screen is regularly appear even after several restart.

Farooq
  • 267

1 Answers1

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Try this:

on that black screen click Ctrl+Alt+f1

enter your user-name

password:your password

$ sudo su

enter your password

run

# dpkg-reconfigure gdm

or

# dpkg-reconfigure lightdm

and choose lightdm

reboot

(sorry for my bad English)

Danatela
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mouh
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