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I changed my ubuntu screen-resolution and now it's everything black and I can't change it againd to the old resolution. What do I do?

Thank you.

1 Answer 1

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Try this:

xrandr -s  800x600

Adjust resolution itself as necessary. This works if you've got a running X11.

If the GUI won't start at all, you may want to try removing xorg.conf; as far as I remember it should be automatically regenerated. But just in case, let's just move it aside instead of deleting it.

sudo mv /etc/X11/xorg.conf /etc/X11/xorg.conf.backup
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    the second command has to be executed as root, I suggest adding sudo in front of it..
    – 0x89
    Sep 7, 2009 at 13:38
  • Good suggestion! I edited my post appropriately and upvoted you, thank you. Sep 12, 2009 at 0:26

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