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

[fred roller]

A couple of thoughts...

First, check the update logs from when you cleaned your computer out, seems
from your opening statement that's when it started... this should narrows
the list considerably.

Second, based on the last statements, sounds like a sticky button issue,
which, when swiching environments stops it until button 3 (?) is pushed
again... is there a way to monitor the mouse input live?  (i.e. for a
keyboard I just type in a text editor until the culprit sticks)

-- Fred

On Sat, Feb 20, 2016 at 12:44 PM, Petter Adsen <petter at synth.no> wrote:

> 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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