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I went to update my Ubuntu version from 14.04 to 14.10 . I got a black screen with a blinking cursor at the top left corner, while updating my computer turned off, every time i boot Ubuntu i get the following 3 messages on the top left corner and then it goes to a blinking cursor

*Setting up X socket directories...                                                 [OK]

*Restoring resolver state...                                                        [OK]

*speech-dispatcher disabled; edit /ect/default/speech-dispatcher                    [OK]

saned disabled; edit /ect/default/saned

I have an ASUS K55A running windows 8.1 with Ubuntu in dualboot.

heemayl
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1 Answers1

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Install another display manager

When you choose between Windows and Ubuntu at boot choose the menu entry Ubuntu ... (recovery mode) and in the following menu start a root terminal/shell with network. In there do 

sudo apt-get update
sudo apt-get install gdm

When asked which display manager to use by default, choose gdm.

Another display manager will work or bring you another issue which you can investigate.

Check for failing driver installations

In the aforementioned root terminal run sudo dkms autoinstall and check that it doesn't produce any output and that it returns with 0 by running echo $? right after the command.

Kalle Richter
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  • So i entered Ubuntu Recovery mode and i get the normal options, one of them being "Network Enable Networking" I hit enter and some commands come up and I'm left to do nothing, i restart my computer by holding the power button and go back into Ubuntu recovery and I hit "Root Drop to shell prompt" and do the commands you stated and it says i can't connect to the Ubuntu archive, so help? –  Mar 29 '15 at 16:22
  • So your one step further encountering the next bug. The network-enabled recovery shell often works randomly only (you can retry if you have energy left; I'll finally report a bug after suffering for years from the issue). Try sudo service networking start && sudo service network-manager restart. If that doesn't work you'll have to figure out how to establish an internet connection on the command line. – Kalle Richter Mar 29 '15 at 18:41
  • the command didn't work I'm trying another Ethernet way, do you know any commands i could use for Ethernet? –  Mar 29 '15 at 19:30
  • Try adding lines iface eth0 inet dhcp and iface eth1 inet dhcp to /etc/network/interfaces (edit with nano in the recovery shell) and run sudo ifconfig eth0 up and sudo ifconfig eth1 up after plugging in you ethernet cable. – Kalle Richter Mar 29 '15 at 20:49
  • You're suffering from two bugs at the same time :( Establishing an internet connection from command line is an advanced, but not overly complicated topic. Do what I wrote - in the remote shell or after logging in the screen you get now - in case of problems you'll have to work through https://help.ubuntu.com/community/NetworkConfigurationCommandLine/. – Kalle Richter Mar 29 '15 at 22:05
  • I managed to establish a connection, I do the commands I wait for about 10-15 minutes I hard reset my PC and boot into Ubuntu and I get another 2 messages "starting uuid generator uuidd........ [OK]" and "Starting NTP server ntpd........ [OK] –  Mar 30 '15 at 09:03
  • And that solved you problem? – Kalle Richter Mar 30 '15 at 11:38
  • No it goes away and i still get the black screen –  Mar 30 '15 at 12:22
  • sudo apt-get install gdm takes 15 minutes and hangs? – Kalle Richter Mar 30 '15 at 12:29
  • the whole process took around 15 minutes and then hangs –  Mar 30 '15 at 12:49
  • Okay I did your steps a couple of times and I booted into Ubuntu and a whole tonne of messages popped up this time bit no login screen, leaves my hanging with the black screen with a blinking cursor –  Mar 30 '15 at 13:55
  • Let us continue this discussion in chat. –  Mar 31 '15 at 09:45
  • Please check whether http://askubuntu.com/questions/162075/my-computer-boots-to-a-black-screen-what-options-do-i-have-to-fix-it solves you issues and give a feedback here. – Kalle Richter Apr 02 '15 at 10:57