[Wayland-bugs] [Bug 96267] Touchpad interferes with trackpoint when disabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96267

--- Comment #20 from Benjamin Tissoires <benjamin.tissoires at gmail.com> ---
(In reply to C. Scott Ananian from comment #19)
> > we will "just" need to bind the driver from the PS/2 node, but this require some changes in the psmouse driver I am not entirely happy about :(
> 
> Can you describe these?  I am eager to test a complete patch stack -- kernel
> 4.8, rmi4-smbus, plus this psmouse patch, presumably.

I just updated my tree here:
https://github.com/bentiss/linux/commits/synaptics-rmi4-smbus-v4.8-rc1+ (branch
synaptics-rmi4-smbus-v4.8-rc1+ then). This is somethign I am more happy about
and I think I'll submit those in tomorrow or by Friday.

If you are not feeling OK taking my various merges, you can just take a 4.8-rc*
and stack up the 12 patches I committed today (from "Input: synaptics-rmi4 -
add SMBus support")

> 
> Thanks for doing such excellent legwork on this!  Presumably Windows is
> using the SMBUS pathway for its trackpoint driver, which is why Lenovo
> hasn't fixed this on their side...

That's the other side of the story, yes.

> 
> Also, out of curiosity, what is the "one more bug over pure PS/2 that can be
> solved only by switching to RMI4"?

I can't recall the exact list, but I think the main issue is that the PS/2
version of the driver doesn't track more than 2 fingers, which means we have
some weird corner cases when 3 or 4 fingers are put and released. Using RMI4
allows 5 true touches, which is much better :)

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/wayland-bugs/attachments/20160817/7a481e14/attachment.html>