dual head testing in XFCE
there were 2 test cases i used for dual monitors. these cases are described as follows...
mirroring - this would be for a presentation maybe. having the same image on both the main display, and a secondary display, such as a projector.
spanning - this would be where the desktop is actually extended onto both monitors making one big desktop.
- i found that mirrored displays is quite easily setup with the included tool from XFCE/Xubuntu located in the menu under, "settings" - "monitor". this seems to be LXrandr. http://packages.ubuntu.com/search?keywords=lxrandr
- to enable, and manage dual head spanning, i prefer the tool arandr.
the different displays were easy to find, configure and rotate using the GUI arandr.
arandr and 'monitors' in the menu have the same icons.
between these 2 tools, we can cover whatever needs to be covered for the end-user.
failed packages, and why
grandr failed. i couldnt enable spanning with it, and there were quite a few 'greyed-out' options