Re: [PATCH v2 1/1] elantech: Add support for trackpoint found on some v3 models

On Thu, Jun 12, 2014 at 09:03:45PM +0200, ulrik.debie-os@e2big.org wrote:

Hi Greg,

Without this patch the elantech.c driver will still bind to the
touchpad, and then get out of sync each time the user touches
the trackpoint or the 3 mouse buttons associated with the trackpoint.

This out of sync will result in a few dmesg lines and a few lost
touchpad input events. The fact that the trackpoint + buttons itself
do not work at all is a minor annoyance compared to the sync loss
effect on the touchpad events.

This resulted in multiple bug reports with patches:
http://tojaj.com/fedora-20-howto-fix-elantech-trackpoint-on-lenovo-thinkpad-l430/
http://permalink.gmane.org/gmane.linux.kernel.input/27763
https://bugzilla.kernel.org/show_bug.cgi?id=48161

Hans suggested me to consider a cc:stable.

Broken hardware is never nice, but as this isn't a regression, and has
never worked, asking to update to a new kernel seems reasonable.

thanks,

greg k-h