Comment 7 for bug 308006

You mean Ember 0.5.6? Our hope was that Ogre 1.6.2 should have fixed this, but it didn't. As Al said, the issue is that Ogre gets its screen resolutions from GLX, which apparently not always is telling the truth.
Now, we're currently using the Ogre built in configuration dialog since it's convenient. But we could also provide our own. Perhaps that's something we could look into (and then provide our own list of resolutions). But that would mean we would need to devote resources to that, and it might be that this issue could be solved in Ogre instead.