How to recover from a display driver problem

[Jim]

On 04/10/2016 10:59 AM, Karl Auer wrote:
> On Sun, 2016-04-10 at 10:07 -0500, Jim wrote:
>> I have 2 HD,s in this machine, one with a working 12.04 and the other
>
>> with 14.04.  Will booting from 12.04 work in place of using the live
>> CD?
>
> You can boot off anything that will give you a working system, as long
> as you can mount the HDD with the borked X. CD, DVD, USB or any other
> bootable HDD... doesn't matter. Just make sure that you take any
> corrective action on the correct HDD!
>
> Regards, K.
>

I am at the root prompt on the effected partition so I am doing this 
from memory.

I went to the advanced recovery options and choose to check the file 
system. It gave me a msg that it was going to mount everyhthing rw. I 
said ok and it returned I went to root.

There I did apt-get install nvidia-304. Answered the questions yes and 
got a msg: about failing to fetch a bunch of nvidia stuff and ending 
"could not resolve security.ubuntu.com". Unable to fetch some archives, 
maybe run apt-get update or try with --fix-missing.

I tried both of those suggestions but still get the message about being 
unable to resolve security.ubuntu.com.

Thanks for your help,  Jim