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

[Petter Adsen]

On Thu, 18 Feb 2016 14:56:34 +0000
Chris Green <cl at isbd.net> wrote:

> I've been digging around this for a while now!
> 
> I took my laptop apart a bit and vacuumed out the keyboard and
> touchpad switches etc.  There didn't seem to be a lot of dirt there
> though.
> 
> Since then I have discovered that if I disable the TPPS/2 IBM
> Trackpoint then all problems disappear, but the Trackpoint stops
> working of course.  Since that includes the very handy middle button 2
> it's not a good solution.
> 
> This looks like it's a problem caused by a recent update to something
> as until recently everything worked perfectly.  It's only a few days
> ago that things started going awry.
> 
> Can anyone suggest what update might have affected things?

My WAG would be one of the recent kernel updates, which is easy enough
to test. You should still have one previous kernel, try rebooting into
that and see if it helps. If it doesn't, install the version before
that and so on. See the apt-get man page on how to install specific
versions of packages.

If older kernels don't help, go through your apt logs and look for
anything that might be involved, like the X server.

Be careful when downgrading packages, as it's not usually recommended
to do so. I'd suggest a full backup before starting.

Petter

-- 
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"Are you sure?"
"I'm positive."