[Wayland-bugs] [Bug 104470] Dell xps 13 8th gen: synaptics touchpad too slow and palm detection basically not working

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104470

Peter Hutterer  changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution|--- |FIXED

--- Comment #6 from Peter Hutterer  ---
3 months later and I'm closing this based on comment #3. The palm detection
isn't something we can fix because we don't get the data from the touchpad.

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[Wayland-bugs] [Bug 104470] Dell xps 13 8th gen: synaptics touchpad too slow and palm detection basically not working

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104470

Peter Hutterer  changed:

   What|Removed |Added

 Status|NEEDINFO|ASSIGNED

--- Comment #5 from Peter Hutterer  ---
Right, so the basic problem with these touchpads is that they don't give us any
information beyond position. There is no pressure or touch size information, so
any touch to us looks like a valid touch. The only palm detection that kick in
here are the edge detection and disable-while-typing (see
http://wayland.freedesktop.org/libinput/doc/latest/palm_detection.html)

I don't have any good solutions here, but I'd appreciate any good ideas you may
have

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[Wayland-bugs] [Bug 104470] Dell xps 13 8th gen: synaptics touchpad too slow and palm detection basically not working

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104470

--- Comment #4 from c...@rmm.li ---
Created attachment 136754
  --> https://bugs.freedesktop.org/attachment.cgi?id=136754=edit
2 events where palmdetection didn't work

In the attached file, I've logged two events, when the palmdetection didn't
work and the Textbox I was working with lost focus.

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[Wayland-bugs] [Bug 104470] Dell xps 13 8th gen: synaptics touchpad too slow and palm detection basically not working

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104470

--- Comment #3 from Daniel van Vugt  ---
I have been testing a Dell XPS 13 (5th gen) today and find the fix for bug
98839 is all it needs to address the responsiveness problems. That's due for
release in libinput 1.10.

Although it sounds like you're covering multiple problems in a single bug
report here.

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[Wayland-bugs] [Bug 104470] Dell xps 13 8th gen: synaptics touchpad too slow and palm detection basically not working

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104470

Peter Hutterer  changed:

   What|Removed |Added

 CC||peter.hutte...@who-t.net
 Status|NEW |NEEDINFO

--- Comment #2 from Peter Hutterer  ---
please attach an evemu-record that shows one of the palm detection issues. If
it's the same hardware as the xps 9365 then the issue is simply that we don't
get enough information from the touchpad to do palm detection and
disable-while-typing (which we already have) is all we can do.

as for the slow acceleration, this is likely related bug 101139

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[Wayland-bugs] [Bug 104470] Dell xps 13 8th gen: synaptics touchpad too slow and palm detection basically not working

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104470

--- Comment #1 from c...@rmm.li ---
btw. if you could make use of some debug output or similar for the
palmdetection i'd happily provide it (just tell me how).

ps. I know, bug reports always sound that negative, but otherwise the whole
thing is working pretty well :-), just the speed is really an absolute no go
and I miss some settings from synaptics driver but no deal breaker, and I hope
they'll find their way into the new  driver sooner or later :-)...

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[Wayland-bugs] [Bug 104470] Dell xps 13 8th gen: synaptics touchpad too slow and palm detection basically not working

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104470

Bug ID: 104470
   Summary: Dell xps 13 8th gen: synaptics touchpad too slow and
palm detection basically not working
   Product: Wayland
   Version: unspecified
  Hardware: Other
OS: All
Status: NEW
  Severity: normal
  Priority: medium
 Component: libinput
  Assignee: wayland-bugs@lists.freedesktop.org
  Reporter: c...@rmm.li

I hope that's the right place to report that, I'm using xorg, not wayland under
debian.
libinput:  1.9.4-2
xserver-xorg-input-libinput 0.26.0-1
dmesg tells me about the device:
 synaptics: Touchpad model: 1, fw: 8.2, id: 0x1e2a1, caps:
0xf00323/0x840300/0x12e800/0x0, board id: 3038, fw id: 2375007

Even when set the acceleration too 1.0, it still moves the  pointer way too
slow (for me).
I don't know exactly how you implemented that acceleration thing, but can't you
just make an acceleration of +1 absolutely incredible insanly fast! 
so then users can find their own acceleration like 0.732? or just allow
accelerations bigger than 1?
This will relieve you from bugreports like this one in the future ;-).

The palm detection is not working reliable on that device. When I try it out in
indentionaly it works, but when I write texts, maybe once per minute it gets a
click and resets the focus, which is incredibly annoying. It also seems to
register a click a lot of times, when I move my right hand from the touchpad
back to the keyboard.

The touchpad is supposed to register a middle click, when I do a click in the
middle, between the left and right mouse pointer. Sometimes it works, mostly it
doesn't (I'm not sure if that is a software or hardware issue). Most of the
times I hit left or right button when trying to do  that, the area to register
that click is waaay to small. When working with low light it's even practically
impossible to hit the right spot.

at least until I get an usuable mouse speed I'll go back to input-synaptics.

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