Very strange problem with input events

[Cedric Sodhi]

On Thu, Jun 14, 2012 at 01:52:28PM +1000, Peter Hutterer wrote:
> On Wed, Jun 13, 2012 at 09:02:52PM +0200, Cedric Sodhi wrote:
> > Two examples:
> > 
> > Tint2 (the panel) had me "drag" window-icons ("tasks") on the taskbar,
> > when I clicked them, as if I had held the mouse button down. I was able
> > to "fix" that by a minor change in the code of tint2, but as no one else
> > is getting any such behaviour I assume I did not really fix the bug but
> > only found some solution to somewhich, which fails elsewhere. I was not
> > able to track the logic which is supposed to run, though.
> > 
> > Second example, Midori (the browser). When I right click a hyperlink and
> > subsequently left click an entry in the context menu, the context menu
> > disappears (as it should) and I'm suddenly "dragging" the link upon
> > which I clicked.
> > 
> > Similar things happen everywhere else, too.
> > 
> > I'm not even sure where to start looking. I wish I could get a
> > suggestion from you, what to do.
> For the link issue, I'd check the evtest output of the touchscreen to see if
> the actual device data makes sense.

Just to make this clear, this has nothing to do with the touchscreen.
I'm using a normal USB mouse.