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[ubuntu] Split screen with vertical white lines when booting in pure terminal without X

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http://ubuntuforums.org – I am running Ubuntu 11.04 on a Lenovo Ideapad S10-3t netbook. It runs well under normal operation when I boot normally (load X) and choose a Desktop environment (Unity or LXDE). Recently I tried to add a boot menu option to boot straight in to a pure terminal (command line mode) without loading X. Grub2 gives the correct menu options but when I choose the command mode (pure terminal) option the screen splits (horizontally) in to two mirrored sections with vertical white lines across the screen (like a diffraction grating) and some unreadable text appears. Although I can't read it I have (Hardware)