SynPS/2 Synaptics TouchPad firmware bug

Alexander E. Patrakov patrakov at
Fri Mar 28 11:16:32 PDT 2014

2014-03-28 10:48 GMT+06:00 Peter Hutterer <peter.hutterer at>:

> having said that, I'm currently struggling with getting libinput up to
> feature parity with the xorg drivers, hacking around broken devices will
> have to wait a bit, sorry.

No problem, I just did that for you. See the attached patch. Seems to
work here, but I am not 100% sure, especially about the non-mt case.
It does prevent sudden pointer jumps to the bottom left corner of the
screen (survived a while round of the Harvest Honors game, something
that the original driver cound not do!), but I also get some click
attempts mistreated as right-clicks. Probably because there are in
fact some moments when the touchpad thinks that two fingers are on it.

Alexander E. Patrakov
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