Comment 4 for bug 367776

The xorg.conf is without any change, just like the Kubuntu 9.04 install process created it.

I'm discussing this problem at forums too, I have found one similar thread at:
http://phoronix.com/forums/showthread.php?t=16460

The suggested 'xrandr --output DVI-0 --right-of VGA-0 --auto' leads to:
xrandr: screen cannot be larger than 1280x1280 (desired size 2560x1024)
(I think I will have to edit xorg.conf to get bigger virtual resolution to make xrandr to work, I will look into it soon)

Another interesting note from that thread related to this bug is:
"... KDE4 seems to remember the configuration so you just need to configure it once. And BTW if you open Display Settings it will revert to cloning"

So even if xrandr workaround will work, it would be still nice to get Display settings fixed anyway.