A bit more testing shows completely random results each time the second
configuration is applied. For example this picture shows the problems
now occurring on the Sony screen rather than the Dell screen.
The biggest effect seen on the Sony screen in this instance included
mouse position offset
Done some more playing and swapped the screens ports around on the card
to make it detect in the same order as I want them on the screen. It
basically doesn't cope with screens that have different resolutions
vertically. Attached picture of the supported positioning of the two
screens.
**
And here is the configuration that doesn't work. If I apply this the
Dell screen will have a part of it that is duplicated from the Sony
screen, the taskbar and even the mouse position will be offset from this
duplicate part (will try to get a screenshot of it)
** Attachment added: "not ok.png"
Public bug reported:
I have a Dell 1280x1024 19" screen and Sony 1366x768 32" screen. Due to
the ports they are connected to on the video card they appear by default
in xfce-display-settings in the reverse to their physical layout.
On previous versions of Xubuntu there has not been any problem
Public bug reported:
This system normally has two displays connected which are always on.
This problem arose when a TV was connected as a third display. It was
preferred to have the TV left "disabled" by unchecking "Use this
display" when it was not needed, but leaving its cable connected.
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