https://bugs.freedesktop.org/show_bug.cgi?id=105753
--- Comment #20 from stacktracer ---
I'm stuck. "udevadm test" shows "LIBINPUT_ATTR_PALM_PRESSURE_THRESHOLD=500",
but "libinput debug-events" shows "palm: pressure threshold is 130".
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https://bugs.freedesktop.org/show_bug.cgi?id=105753
--- Comment #18 from stacktracer ---
Notably, the cursor still gets stuck when, and only when, "libinput measure"
reports a max pressure above 130. It's very consistent. Maybe my 500 isn't
taking effect after all.
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https://bugs.freedesktop.org/show_bug.cgi?id=98839
--- Comment #100 from Daniel van Vugt ---
Excellent, thanks.
I had actually forgotten to report that hysteresis was breaking the X1 Carbon
G5 again...
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https://bugs.freedesktop.org/show_bug.cgi?id=98839
--- Comment #99 from Peter Hutterer ---
https://lists.freedesktop.org/archives/wayland-devel/2018-April/038025.html
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https://bugs.freedesktop.org/show_bug.cgi?id=106204
--- Comment #9 from Peter Hutterer ---
no, the kernel doesn't do anything other than forward the events. If you switch
to imps, the kernel doesn't switch the touchpad to touchpad mode so the
firmware emulates a PS/2
https://bugs.freedesktop.org/show_bug.cgi?id=105753
--- Comment #23 from Peter Hutterer ---
commit 59eb10e593213403c301a5ce3fbd0a22b6e52efd
Author: Peter Hutterer <>
Date: Mon Apr 30 10:40:45 2018 +1000
util: allow for palm pressure > 255
so grabbing git master
https://bugs.freedesktop.org/show_bug.cgi?id=105753
--- Comment #21 from Peter Hutterer ---
This may be caused by a peculiar behaviour of udevadm test: it shows the
properties to be applied but only applies them when being run as root. So make
sure to run as root if you
https://bugs.freedesktop.org/show_bug.cgi?id=105753
--- Comment #22 from Peter Hutterer ---
Created attachment 139224
--> https://bugs.freedesktop.org/attachment.cgi?id=139224=edit
0001-util-allow-for-palm-pressure-255.patch
Sorry, posted to quickly. This one is the
https://bugs.freedesktop.org/show_bug.cgi?id=106286
Peter Hutterer changed:
What|Removed |Added
CC|
https://bugs.freedesktop.org/show_bug.cgi?id=105753
--- Comment #16 from stacktracer ---
For me the palm threshold needs to be set to at least 300. It probably makes
sense to set it even higher (maybe 500?), since this is a desktop touchpad --
separate device, not built
https://bugs.freedesktop.org/show_bug.cgi?id=106313
anthony changed:
What|Removed |Added
Hardware|Other |x86-64 (AMD64)
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https://bugs.freedesktop.org/show_bug.cgi?id=106310
Bug ID: 106310
Summary: crash backtrace
Product: Wayland
Version: unspecified
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority:
https://bugs.freedesktop.org/show_bug.cgi?id=105753
--- Comment #17 from stacktracer ---
Hmm, no joy yet.
I increased the palm threshold, by putting the following in
/etc/udev/hwdb.d/99-logitech-wireless-touchpad-palm.hwdb:
libinput:touchpad:input:b0003v046Dp4011*
https://bugs.freedesktop.org/show_bug.cgi?id=105753
--- Comment #19 from stacktracer ---
Indeed:
$ libinput debug-events --device /dev/input/event14 --verbose
event14 - Logitech Wireless Touchpad: is tagged by udev as: Touchpad
event14 - using pressure-based touch
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