Quite similar to Cannot Display This Video Mode? which seems to have never been answered.

  • Display works fine in liveCD but not in full installation.

  • Full install boot I get the bios splash and then the screen goes black and screen resolution error message.

  • If I try holding shift for grub, I get the bios splash, "loading grub", then screen resolution error message.

  • Ctrl+Alt+F1 does nothing.

  • Attempted to modify /etc/default/grub, changes are overwritten to defaults.

  • sudo lshw -C display reveals I have a Rage 128 Pro agp card.

  • System reboots if I press Ctrl+alt+del.

Suggestions?

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