https://bugs.kde.org/show_bug.cgi?id=515303

            Bug ID: 515303
           Summary: pen pressure needs to be strong to for a stroke to
                    register, except when button pressed on pen
    Classification: Plasma
           Product: plasmashell
      Version First 6.5.5
       Reported In:
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected]
  Target Milestone: 1.0

Problem: pen pressure needs to be strong to register, except when button
pressed on pen

A pressure sensitive pen only starts painting if
- a button on the pen is pressed beforehand (and then the pen touches the
screen)
- sufficiently strong pressure is applied to the pen on the screen

This happens in generally in KDE, in different applications (gimp, krita,
rnote..)

This has not been the case a few weeks/months back (I cannot pinpoint when this
started happening)

It looks like the pen is handled like a mouse. A "click" either in form of
enough pressure or button-press is necessary to lead to drawing. 

This is not how a drawing tablet (galaxy s9 with an s-pen) is handling pressure
sensitive pens. It is also not how it was handled before in KDE. 

Desired behavior is, that any touch of the pen on the screen will register as
stroke, even a light one. With more pressure amounting to a stronger stroke. 

This bug renders drawing with pressure practically useless. One cannot draw on
a laptop screen without holding the physical screen with one hand, because the
pressure necessary for the pen to register pushes the screen backwards. One
also does not know at what exact moment enough pressure is reached for a stroke
to start appearing.

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