Bug#884599: libinput10: jittery synaptics touchpad in wayland session

[Andreas Boll <andreas.boll.dev@gmail.com>]

On Sun, Dec 17, 2017 at 01:09:16PM +0000, James Cowgill wrote:
> Package: libinput10
> Version: 1.9.4-1
> Severity: normal
> 
> Hi,
> 
> Since upgrading to libinput 1.9.4-1, I have noticed my synaptics
> touchpad on my laptop has become very jittery. Placing my finger on the
> touchpad without moving it causes the mouse to move around very
> slightly. This is a massive PITA when trying to click precisely somewhere.
> 
> Downgrading to 1.9.3-1 fixes this.
> 
> The laptop is an old Dell XPS 15 L502X, but I'm not sure how to get any
> extra information about my touchpad (if that would be useful).
> 
> Thanks,
> James

Could be related to the new patch fix-lp1696929.patch we ship since
1.9.4-1. Can you rebuild and test libinput 1.9.4-1 without that patch?

Thanks,
Andreas