Ubuntu

Screen goes dark after Ubuntu splash screen

Asked by Alex

Hello,

I have just installed the latest version of Ubuntu and am quite new to it. It has only been installed for almost a week, and now I am having a problem.

Whenever I start up the computer, I can see the Ubuntu Splash Screen, but right as it is about to go to the login screen, it goes dark and my monitor says "cannot display this resolution". I have used a different monitor and it too said "out of range". So obviously there is a problem with the resolution.

How can I get into the computer to change the display back to normal?

I have tried the Recovery Mode, but I am new to Linux and have no idea what I am doing.

I also don't know what graphics card I have or if it even has a name. I'm using a whitebox computer (generic, no-name brand).

Can someone help?

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Sam_ (and-sam) said : 		#1

It was ok 'for almost a week'? Did you change anything?

Recovery Mode should offer an option: xfix - try to fix XServer
##This should help

Another option shows: root - drop to root shell
This is a privileged command line [CLI]. When finished type either: exit or reboot
e.g. to find out specifics about graphics:
lshw -C video
##note the first letter is lower case of 'L'

##btw.
If you like to know more details about your system:
lshw -short

Much more details should be piped to less, so you can use keys [page up+down] and quit with [Q]
Otherwise it will be a huge output at once and difficult to read.
e.g.:
dmidecode | less

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