On Thu, Feb 18, 2016 at 05:00:22PM +0100, Petter Adsen wrote: > On Thu, 18 Feb 2016 14:56:34 +0000 > Chris Green <[email protected]> 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. > Well I've proved it's definitely a bug. I've just installed gpm the mouse handler for the console. When the problem happens in X I can switch to a console (CTRL/ALT/Fn) and the buttons still work fine with gpm. In addition doing this clears the problem in X.
I've tried two older kernels, the bug is still there. How can I check to see when other packages have been changed? Using xev to check button events what happens when the bug occurs is that there is a single button 3 event (no release) and after that neither button 2 nor button 3 produce any events. -- Chris Green -- xubuntu-users mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/xubuntu-users
