Anne Wilson wrote:
I tried to find out the current state of this, for you.
The echos I got from upstream are that it should be way better in 4.2 than 4.1. They implemented a new library called Kephal in kdebase-workspace which is designed to improve multi-monitor support.
explaned me that if you start KDE and after you plug-in the monitor and you configure it from the System Setting you are using XRenderR
That would be XRandR (X Resize and Rotate - its original functionality was to allow "resizing" (i.e. switching the resolution of) or rotating the screen without restarting X11, support for adding/removing screens has been added later).
Kevin Kofler