How do you adjust the "resolution" of a machine with no monitor attached?

Ben Coleman oloryn at
Sun Aug 26 06:07:10 UTC 2012

I just threw together a Mythbuntu 12.04 box to play with.  I don't have
a spare monitor (not space to put it) to put on it, but I figured I
should still be able to configure it via VNC, since the install is nice
enough to provide the ability to enable it.  Problem is, with no monitor
attached, video comes up with a max resolution of 640x480, and when I
VNC in, that's what I get.  I'd rather VNC in and get at least 1024x768,
or maybe 1280xu768.  Is there an easy way to get the system to come up
in a higher resolution without plugging in a monitor?

Ben Coleman oloryn at | For the wise man, doing right trumps     | looking right.  For the fool, looking
Amateur Radio NJ8J              | right trumps doing right.

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