[xubuntu-users] Further to "Mouse focus problem in 15.10"

Petter Adsen petter at synth.no
Sat Feb 20 17:44:04 UTC 2016


On Sat, 20 Feb 2016 17:06:22 +0000
Chris Green <cl at isbd.net> wrote:

> On Sat, Feb 20, 2016 at 04:47:42PM +0000, Chris Green wrote:
> > > > That is odd. Since gpm works the kernel driver is probably OK,
> > > > but I don't understand why X can't see the events. Can you
> > > > install evemu-tools and see if evemu-record can see them?
> > > >   
> > > It's not *quite* as simple as I thought.
> > > 
> > > Hitting button 3 of the Trackpoint buttons only ever works once,
> > > just one event.  Having done that the bug appears (the mouse
> > > function is stuck in one window).  However if I then go to a
> > > console CTRL/ALT/Fn and back, without even logging in on the
> > > console, the bug is fixed and seems to stay fixed.  So at least I
> > > have a workaround now!
> > > 
> > > Maybe X is seeing the Button 3 down wit no up and thus 'sticks'.
> > > Going to a console (gpm grabs the mouse while there, even if not
> > > logged in) clears the 'stuck' button and it stays unstuck.
> > > Button 3 on the Trackpoint never gets unstuck even when using gpm
> > > but that doesn't matter because there's a button 3 with the
> > > Trackpad. 
> > It doesn't even need gpm to be installed.  Start X, get the bug,
> > switch to a console and back (do nothing at all when there), bug is
> > fixed.  It's simply leaving X and returning that fixes the problem.
> >   
> I think this might very well be a related issue:-
> 
>     https://bbs.archlinux.org/viewtopic.php?id=196822
> 
> Comment at the bottom says it's fixed in 4.3.x kernel.

Should be easy to test, install a recent mainline kernel.

https://wiki.ubuntu.com/Kernel/MainlineBuilds

Petter

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