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[PeteC <peterpion@xxxxxxxxx>]

Public bug reported:

Binary package hint: xorg

Panning works, but if I move the mouse rapidly in a way which causes the
laptop LCD to pan to a border, the movement of the screen seems unable
to keep up - the result is that the mouse becomes misaligned on the
laptop screen. IE if I hover over a specific point (like an icon on the
desktop) as viewed in the external monitor, the mouse pointer will be
over a different point on the laptop LCD. If I then click on that point,
the point which becomes 'clicked' is the point shown on the external
monitor, not the internal LCD. This misalignment can be reset by moving
very slowly to each corner of the virtual screen in turn. Once this is
done, the mouse pointers show in the same place on both screens. Moving
rapidly once again results in misaligned pointers. Different
misalignment each time.

New Ubuntu 9.10 installation on new Lenovo x200 tablet. Dell 1920x1200
monitor on VGA port, internal LCD is 1280x800. Using xrandr to enable
panning with the following commands:

xrandr --fb 1920x1200
xrandr --output VGA1 --mode 1920x1200
xrandr --output VGA1 --pos 0x0
xrandr --output LVDS1 --panning 1920x1200+0+0/1920x1200+0+0/0/0/0/0

No xorg.conf file is used.

X version is 1.6.4, xrandr -v reports 1.3

OS is 2.6.24-23-server i686 Ubuntu

This is the first time I have submitted a bug, and I apologise in
advance if I have done something wrong. I have searched the web for this
problem and the only thing I find that sound similar is 3 years old in
xrandr 1.2 so it seems unrelated.

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Mouse becomes misaligned when panning enabled with dual monitors
https://bugs.launchpad.net/bugs/508002
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