[kwin] [Bug 386725] Two finger scrolling needs three fingers

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=386725

sgat_b...@gmx.de changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |INVALID

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[kwin] [Bug 386725] Two finger scrolling needs three fingers

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=386725

--- Comment #7 from sgat_b...@gmx.de ---
I have investigated in the meantime that my X11 session still uses the
synaptics input driver rather than libinput. It seems that some quirks for my
touchpad model needs to be ported from synaptics to libinput. Thank you though
for investing time in this issue.

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[kwin] [Bug 386725] Two finger scrolling needs three fingers

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=386725

Martin Flöser  changed:

   What|Removed |Added

  Component|input   |libinput

--- Comment #6 from Martin Flöser  ---
I fear it's a bug in the underlying libinput library. We don't do anything
special except telling libinput to activate it. That code on our side works.
E.g. I'm also using two finger scrolling and it works.

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[kwin] [Bug 386725] Two finger scrolling needs three fingers

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=386725

--- Comment #5 from sgat_b...@gmx.de ---
Created attachment 108800
  --> https://bugs.kde.org/attachment.cgi?id=108800=edit
Screenshot of KWin debug console

input device: SynPS/2 Synaptics TouchPad

supportsScrollTwoFinger: true
scrollTwoFinger: true

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[kwin] [Bug 386725] Two finger scrolling needs three fingers

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=386725

--- Comment #4 from Martin Flöser  ---
Please open KRunner (Alt+Space) and enter:
KWin

It will offer to "Open KWin debug console". Please do that. A window will open
in the top left corner and it has an "Input Devices" tab. Navigate to that,
find your touchpad and expand it. It will list all the options available on the
touchpad device and how they are configured.

I'm mostly interested in:
supportsScrollTwoFinger and scrollTwoFinger. Both should be true.

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[kwin] [Bug 386725] Two finger scrolling needs three fingers

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=386725

Martin Flöser  changed:

   What|Removed |Added

  Flags||Wayland+, X11-

--- Comment #3 from Martin Flöser  ---
Sorry I misread the bug report. I only saw X11 session and didn't read
properly.

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[kwin] [Bug 386725] Two finger scrolling needs three fingers

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=386725

sgat_b...@gmx.de changed:

   What|Removed |Added

 Status|RESOLVED|UNCONFIRMED
 Resolution|INVALID |---

--- Comment #2 from sgat_b...@gmx.de ---
You have closed the bug, but let me explain another time: The function "TWO
finger scrolling" behaves differently in Wayland and X11.

X11: In the X11-session the function behaves according to it's specification:
you need only TWO fingers to scroll.

Wayland: If you need THREE fingers to scroll and the function is called TWO
finger scrolling, either the function has the wrong name (rename it to THREE
finger scrolling) or the function does not behave according to it's
specification.

If KWin is responsible on Wayland for the touchscreen device configuration, it
is in my point of view a bug of KWin.

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[kwin] [Bug 386725] Two finger scrolling needs three fingers

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=386725

Martin Flöser  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |INVALID

--- Comment #1 from Martin Flöser  ---
In an X11 session KWin is not responsible for the touchscreen device
configuration. Only on Wayland KWin is responsible.

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[kwin] [Bug 386725] Two finger scrolling needs three fingers

[Nate Graham]

https://bugs.kde.org/show_bug.cgi?id=386725

Nate Graham  changed:

   What|Removed |Added

 CC||pointedst...@zoho.com

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