Apple Cinema Display HD only shows 1280 x 800 available...

[Carlo]

Originally Posted by Jaime Gago

Can you be more precise?
Technically the monitor (Apple Cinema HD) *does* support much more than those 2 resolutions modes.
If I connect it via the Mini Display link I have many resolutions options. So why is there only 1 available when connected on the Sewell Minideck? Why are the logs reporting only those 2 modes when the display is capable of much more?

All Apple displays from the ADC ones onwards don't have an onboard scaler and thus support only the native resolution. The exception are the 30" displays that also support the one-quarter resolution that is easy to obtain without a scaler.
What happens when you connect these displays directly to your Mac is that the graphics card makes more resolutions available by performing full screen scaling. In other words, the GPU does the scaling instead of the display.
DisplayLink drivers don't have this additional full-screen scaling function (yet).
I can't give a date for this feature, it is not in high demand because usually the displays are used at their native resolution anyway. In your case of course this is not possible.