[Wayland-bugs] [Bug 104828] Jumpy AlpsPS/2 ALPS DualPoint TouchPad

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104828

Bug ID: 104828
   Summary: Jumpy AlpsPS/2 ALPS DualPoint TouchPad
   Product: Wayland
   Version: unspecified
  Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
  Severity: normal
  Priority: medium
 Component: libinput
  Assignee: wayland-bugs@lists.freedesktop.org
  Reporter: grouik.gro...@yahoo.fr

Hi,

Running Ubuntu 18.04 (dev) and libinput 1.9.4-2ubuntu1 on a Dell Precision
7510.

Since the patch applied in Ubuntu (
https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/1696929 ) from 1.9.4-2
version, my touchpad is jumpy.

Pointing is jumpy when I need some precision (row size setting, e.g.), pointer
is jumpy (very small jumps) when I keep my finger at the same place.
Two-fingers scrolling is jumpy as well.

Daniel van Vugt says in LP bug report : "The patch in 1.9.4-2ubuntu1 is the
same as what's coming soon in libinput release 1.10. So a fix for your specific
touchpad should be done upstream. Simply reverting the patch won't help you
after we update to libinput 1.10, and besides most laptops seem to need that
patch."
https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/1745816

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[Wayland-bugs] [Bug 102649] Mouse taps (?) detected while typing

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=102649

--- Comment #43 from Peter Hutterer  ---
"thee cursor jumped between "t" and "ermina"." - wait, I though we're talking
about mouse taps detected?

Now that I'm reading the log again: the problem seems to be that your
trackpoint sends random motion events. This is one case of movement while
typing:
   event0   KEYBOARD_KEY +15.72s  *** (-1) pressed
   event0   KEYBOARD_KEY +15.78s  *** (-1) released
  -event14  POINTER_MOTION   +15.90s   -0.26/ -0.09
  -event0   KEYBOARD_KEY +15.91s  *** (-1) pressed
   event0   KEYBOARD_KEY +15.91s  *** (-1) pressed
  -event14  POINTER_MOTION   +15.91s   -0.73/ -0.29
  -event0   KEYBOARD_KEY +15.98s  *** (-1) released
   event0   KEYBOARD_KEY +15.98s  *** (-1) released

event14 is your trackpoint and it's not captured by the disable-while-typing
because that's for touchpads only. So the question now is *why* is this thing
sending the occasional movement? Are you touching it or just hammering on the
keyboard hard enough?




As for starting multiple commands at the same time, screen is your friend:
$> cat test.screenrc
zombie kr
screen ls -lR
screen echo "hello"
$> screen -c test.screenrc

Will start 2 screens with ls and echo. Adjusting this example should give you
almost exact timestamps in evemu and libinput debug-events.

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[Wayland-bugs] [Bug 792889] On kwin_wayland, GTK3 applications started with GDK_BACKEND=wayland *always* request CSD despite preferring SSD

[gtk+]

https://bugzilla.gnome.org/show_bug.cgi?id=792889

--- Comment #17 from Drew DeVault  ---
My understanding of the protocol is that once the client binds to the
decoration manager, it will use the server advertised mode by default and will
only send an event if it wants to use something else.

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[Wayland-bugs] [Bug 792889] On kwin_wayland, GTK3 applications started with GDK_BACKEND=wayland *always* request CSD despite preferring SSD

[gtk+]

https://bugzilla.gnome.org/show_bug.cgi?id=792889

--- Comment #18 from Kyle De'Vir  ---
Curious... kwin_wayland must be doing something odd, then, if LibreOffice
doesn't make CSD requests on Sway, but does on kwin_wayland.

It's almost like... on kwin_wayland, your code is, for whatever reason, marking
said applications' windows as always being priv->client_decorated, even though
they're obviously not, thus always triggering gdk_wayland_window_announce_csd.

But... that makes zero sense. WTF? :/

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[Wayland-bugs] [Bug 792889] On kwin_wayland, GTK3 applications started with GDK_BACKEND=wayland *always* request CSD despite preferring SSD

[gtk+]

https://bugzilla.gnome.org/show_bug.cgi?id=792889

--- Comment #14 from Drew DeVault  ---
Created attachment 367548
  --> https://bugzilla.gnome.org/attachment.cgi?id=367548=edit
WAYLAND_DEBUG log of lowriter on Sway

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[Wayland-bugs] [Bug 792889] On kwin_wayland, GTK3 applications started with GDK_BACKEND=wayland *always* request CSD despite preferring SSD

[gtk+]

https://bugzilla.gnome.org/show_bug.cgi?id=792889

--- Comment #16 from Kyle De'Vir  ---
I see... on kwin_wayland, MyPaint, LibreOffice, DarkTable and RawTherapee do
not have SSD, but they seem to be request CSD from kwin_wayland regardless.

>From said applications, it is always invariably:

[3347746.113] org_kde_kwin_server_decoration_manager@15.default_mode(2)
...
[334.597]  -> org_kde_kwin_server_decoration@32.request_mode(1)

I noticed that in your LibreOffice log for Sway, that it never makes any
requests. Why does this happen on kwin_wayland, then? Broken assumptions?

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[Wayland-bugs] [Bug 792889] On kwin_wayland, GTK3 applications started with GDK_BACKEND=wayland *always* request CSD despite preferring SSD

[gtk+]

https://bugzilla.gnome.org/show_bug.cgi?id=792889

--- Comment #13 from Drew DeVault  ---
I just tested this again on Sway and it worked as expected. I tested gtk-demos,
nautilus, and lowriter; all worked correctly. The expected behavior is that
gtk-demos use CSD and disable SSD, individual demos in gtk-demos use SSD and
disable CSD, nautilus uses CSD and disables SSD, and lowriter uses SSD and
disables CSD.

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[Wayland-bugs] [Bug 792889] On kwin_wayland, GTK3 applications started with GDK_BACKEND=wayland *always* request CSD despite preferring SSD

[gtk+]

https://bugzilla.gnome.org/show_bug.cgi?id=792889

--- Comment #20 from Kyle De'Vir  ---
An examination of the GTK3 code suggests that the application must set
priv->client_decorated, but that still doesn't explain why the same GTK3
applications will request this on kwin_wayland, but not Sway.

This is... confusing.

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[Wayland-bugs] [Bug 792889] On kwin_wayland, GTK3 applications started with GDK_BACKEND=wayland *always* request CSD despite preferring SSD

[gtk+]

https://bugzilla.gnome.org/show_bug.cgi?id=792889

--- Comment #19 from Kyle De'Vir  ---
Not your code, specifically, sorry, but rather, GTK3 is, somewhere else.

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[Wayland-bugs] [Bug 792889] On kwin_wayland, GTK3 applications started with GDK_BACKEND=wayland *always* request CSD despite preferring SSD

[gtk+]

https://bugzilla.gnome.org/show_bug.cgi?id=792889

--- Comment #15 from Drew DeVault  ---
Created attachment 367549
  --> https://bugzilla.gnome.org/attachment.cgi?id=367549=edit
WAYLAND_DEBUG log of gtk4-demo on Sway

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