Synaptics clickpad release events

Ross Vandegrift ross at
Wed Oct 29 07:12:09 PDT 2014

On 2014-10-28 21:25, Peter Hutterer wrote:
> On Tue, Oct 28, 2014 at 03:16:59PM -0500, ross wrote:
>> Hello all,
>> I have a T440s clickpad that's behaving badly.  When I click the pad, 
>> a
>> ButtonPress is sent as soon as I click.  When I release, no 
>> ButtonRelease is
>> sent until I actually remove my finger from the touchpad surface.  So 
>> most
>> clicks end up as drags - very annoying.  I've tried various options 
>> with
>> synclient, but according to xev, nothing changes when the release 
>> event is
>> generated.
>> The weird thing: a different T440s (different sku) with the same model
>> clickpad, same software, and same config behaves normally - a 
>> ButtonRelease
>> is sent as soon as the click is over, no need to remove the finger.
>> How can I get the first to behave like the second?  I'm using 
>> synaptics
>> 1.8.1 from Debian jessie, with Xserver 1.16.1, and Linux kernel 
>> 3.16.5.
> try dropping the options from your conf and see if any of them make a
> difference, specifically the Palm options.

I've commented out all of the options from my config, but the behavior 
is still the same.  I've recorded descriptions and events from both 
touchpads and opened bug 85602.

Thanks Peter,

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