Ubuntu: On boot, black screen says “Ubuntu 12.04.1 LTS [ubuntu name] tty1” and asks for login



Question:

I am new to Linux, never used it before. I can follow instructions but don't know much about it. Tried searching for a solution to this but couldn't find one. I installed Ubuntu 12.04. It was working fine. Now when I boot up, I get BIOS splash screen, brief purple screen, then a completely black screen that says:

"Ubuntu 12.04.1 LTS [Ubuntu name] tty1    [ubuntu name] login:"  

I can enter in my username and password, then it says:

"last login: Mon Sep 10 18:37:03 EDT 2012 on tty1  Welcome to Ubuntu 12.04.1 LTS (GNU/Linux 3.2.0-30-generic x86_64)    *Documentation: https://help.ubuntu.com/    0 packages can be updated  0 updates are security updates"  

I had this issue, did a fresh install, and then continued having this same problem. At some point I was also just getting a black screen with a cursor. I think sometimes all it said was [ok].

Please help - thanks!


Solution:1

What it means is that for some reason the graphics doesn't work, but otherwise the system is fine. Laugh not: what you see is the regular login screen on a Ubuntu server edition, or a typical Unix login screen for many, many years.

This can be for example due to a problem with a graphics driver. There are a few things you can do to correct the problems. After you log in, try the following:

  1. Type startx at the command prompt. This will, most likely, fail, but it will also print out a reason for the failure.

  2. Copy the file /var/log/Xorg.0.log to an USB stick or a Windows partition (your USB stick should work as usual), using command like cp /var/log/Xorg.0.log /media/XXX, where XXX is the name of your USB stick. Upload it to http://paste.ubuntu.com.

  3. At the minimum, tell us what graphic adapter you have (my guess is: Nvidia)


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