Comment 10 for bug 209018

Confirmed with 10.10 on a Toshiba R100.

01:00.0 VGA compatible controller: Trident Microsystems CyberBlade XP4m32 (rev 91)

Using the xorg.conf at this URL fixes it

http://kubuntu-portege.blogspot.com/2008/10/xorgconf-using-trident-diver.html

SO the issue is that the trident driver does not correctly detect the available resolutions,