[ubuntu] Loss of video during install process for 12.04

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http://ubuntuforums.org – I am trying to install 12.4 LTS on my wife's Dell All-in-One Inspiron One. I am using a previously-used CD image, so I know the CD is OK. Install process starts normally with the line-by-line output, but before the graphical output starts, the display goes dark and stays dark. Once the process reaches the point where a response is required to continue, it hangs there because there is no way to respond. If I play with the mouse, I can sometimes get a quick flicker of the graphic image, but the screen then goes dark immediately. I've installed every Ubuntu release since 8.4 on a number of d (Hardware)