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So... I screwed up. I was trying to get a second monitor to work on ubuntu but it wasn't auto detecting it. So I went online and found out that it could be a video drive issue. So I went to drivers and selected one of the Nvidia drivers that ubuntu suggested. At this point, I restarted the computer. When it booted, I was stuck in 480x640. I googled this issue and found that someone suggested I use some kind of command (something "purge" something "Nvidia" sorry I don't remember the actual command). After doing that, I rebooted and now Ubuntu boots to a black screen with no cursor, or anything. When I hold down my power button to shutdown, the ubuntu logo shows up with the four loading dots underneath but it shutsdown before it goes further.

If I had to guess, i would guess I don't have a video driver assigned anymore, or the one I'm using is screwed up, but I haven't used Ubuntu long, so I'm not an expert.

If someone could help, I would really really appreciate it.

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Boot to recovery mode and try the solution here askubuntu.com/questions/334986/… –  Colyn1337 Aug 23 '13 at 16:29
    
I did it all, but I'm still having the same problem. I didn't see any errors, so I think the commands ran fine. –  Ryan Aug 23 '13 at 18:12
    
try booting in recovery: type in terminal sudo unity --reset & tell me how it goes –  aiao Aug 23 '13 at 18:55
    
@aiao I tried the unity reset. This is what it gave me: 'WARNING: no DISPLAY variable set, setting it to :0 (process:2253): GConf-WARNING **: Client failed to connect to the D-BUS daemon://bin/dbus-launch terminated abnormally with the following error: Autolaunch error: X11 initialization failed. WARNING: environment is incorrect:No D-BUS daemon running Did you just try to reset in a tty? unity-panel-service: no process found compiz (core) - Fatal:Couldn't open display :0 Then it ends. There is no change when it boots.' –  Ryan Aug 23 '13 at 23:35
    
Also, I'm very sorry the previous post has no line breaks. I'm new and I could not find out for the life of me how to add them. –  Ryan Aug 23 '13 at 23:43
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