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[John Agosta <787587@xxxxxxxxxxxxxxxxxx>]

I realized that I failed to problem exact instructions to reproduce the
problem...

The default Dell Duo resolution is a 16:9 ratio and is set to 1366x768.
This is too small.  You can use another preconfigured resolution of
1024x768, but this leaves large amounts of unused screen.  Therefore,
trying to set the screen to a good 16:9 ratio and thus using 1024x576.
This works on Maverick 10.10 via the following commands...

$ cvt 1024 576
# 1024x576 59.90 Hz (CVT 0.59M9) hsync: 35.88 kHz; pclk: 46.50 MHz
Modeline "1024x576_60.00"   46.50  1024 1064 1160 1296  576 579 584 599 -hsync +vsync

$ xrandr --newmode  "1024x576_60.00"   46.50  1024 1064 1160 1296  576 579 584 599 -hsync +vsync
$ xrandr --addmode LVDS1 1024x576_60.00
$ xrandr --output LVDS1 --mode 1024x576_60.00

At this point on 11.04 the screen completely blanks out.  I am able to
use the terminal window blindly and use xrandr to reset the resolution
to the well known working default resolution (1666x768).

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https://bugs.launchpad.net/bugs/787587

Title:
  Cannot change screen resolution on Dell Duo in Natty