Hmmm, my explanations seem to be as clear as mud! Doctored screen shots would be great - but I'm not allowed to post attachments.
I have a 19" monitor that is capable of 1600x1200. This is the normal resolution that I work at. At 1600x1200, the entire screen (19") is filled.
Sometimes, I want to change to a lower resolution (800x600) - either via the ctrl+alt+'num+', or via the 'Screen Resize and Rotate' program. When I do this, I want the new resolution to be shown using the whole monitor, ie 19" diagonal. Sadly, it doesn't happen, the new display only fills a quarter of the 19" - ie it is just over 5" diagonally, and it is located at the top right of the monitor screen.
Remember when you could have a virtual desktop (e.g. 2048x2048) that was bigger than the resolution of your monitor (eg 1024x768) ? You could scroll around the desktop - but showing only only a certain portion of the desktop at one time. I've got the opposite problem - when my desktop resolution (and desired screen resolution) is smaller than my standard screen resolution. At this time, I get a tiny desktop (800x600), but my monitor resolution remains at 1600x1200.
My monitor at 1600x1200 :
X shows when the monitor displays a picture. O shows totally blank unusable screen real estate. At 800x600, I get :
If you still don't understand, please mail me - my linuxquestions username at hotmail dot com. I'll send two tiny examples.
Thanks in advance,