[PATCH libinput 0/3] Fix Lenovo X230 series touchpad
giuliocamuffo at gmail.com
Sun Apr 12 23:49:14 PDT 2015
I've been testing it for the last couple days, and i think it's an
improvement. However i think it could be better still, i feel the
pointer is too slow when moving the finger at a normal speed.
2015-04-09 20:30 GMT+03:00 Benjamin Tissoires <benjamin.tissoires at gmail.com>:
> Here is a series to try making the touchpad found on the Lenovo
> X230 working. This touchpad has a very bad hardware resolution and by
> default, libinput jumps the cursor for 10 pixels at least whenever the
> user moves the finger.
> This series adds a special tag for such hardware and provides a separate
> acceleration profile for them. As mentioned in the documentation, nobody
> but X230 owners should use this tag.
> The fourth patch of the series is not required per se, given that we should
> push this through hwdb and not have a custom fix in libinput. With it, the
> touchpad felt a little bit better, but that's maybe just me.
> It's up to the libinput maintainer to decide to take it or not (thus the 4/3).
> Final note. I tested it on a X230t (t for tablet). I'd like to get some
> feedbacks from the non-tablet users too.
> Benjamin Tissoires (4):
> filter: break out accel_profile_linear from
> evdev: use a different filter for low resolution touchpad on the
> Lenovo X230
> udev: add a custom udev rule for X230 touchpads
> evdev: Fix reported resolution of Lenovo X230 touchpads
> doc/device-configuration-via-udev.dox | 9 +++++
> src/evdev-mt-touchpad.c | 4 ++-
> src/evdev.c | 21 +++++++++++++
> src/evdev.h | 2 +
> src/filter.c | 53 +++++++++++++++++++++++++++++---
> src/filter.h | 5 +++
> udev/99-x230.rules | 14 +++++++++
> udev/Makefile.am | 4 ++-
> 8 files changed, 105 insertions(+), 7 deletions(-)
> create mode 100644 udev/99-x230.rules
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