Comment 10 for bug 138820

The same problem still appears on a 10.04 install done today. I have an Intel 945G Express Chipset within a notebook, and an external LG 204WT monitor. In gnome-display-properties I could not choose the appropriate 1680x1050 resolution for this monitor.

A workaround was creating /etc/X11/xorg.conf as attached. Using this, also 1600x1200 and 1792x1344 became available, which should not happen.

This seems to be a general problem with some monitors supporting 1680x1050. Any idea what could be going wrong?