Public bug reported:
When I have a multimonitor setup, moving the cursor near the left edge
of the right screen (i.e., towards the join), the mouse cursor
disappears roughly eight pixels from the edge of the screen. The mouse
is still there, and all controls respond to hovering and clicks -- it
acts exactly as normal.
This may be because (I'm guessing) the mouse cursor is rendered based on
where the top-left corner of its image "should" appear on the screen.
Since the "head" is usually not in the top-left pixel of the cursor
image -- there's some space, when it gets close enough to that edge, the
top-left appears on the opposing monitor, and the cursor is rendered
there -- but appears offscreen, as the entire pointer is on the opposite
screen. Some testing using the "crosshairs" cursor supports this
hypothesis -- when near enough to the edge, its leftmost pixels appear
on the left-hand monitor, while the pointer is still in the right-hand
one.
This is Ubuntu 8.10, fully up-to-date, with -proposed enabled. This
problem existed before enabling that repository as well. I am using the
open-source ATI video driver.
** Affects: ubuntu
Importance: Undecided
Status: New
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Cursor disappears near edge of screen on multiscreen setups
https://bugs.launchpad.net/bugs/298603
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