Public bug reported:
Smooth two-finger touchpad scrolling doesn't work in apps under Unity8
(but does work in Mir demo servers).
The reason appears to be because QtMir drops the nice float vscroll
precision that Mir gives it and converts that into an int with very
limited resolution:
void handleWheelEvent(ulong timestamp, QPoint angleDelta,
Qt::KeyboardModifiers mods) override
QPoint is a pair of integers, but touchpad v/hscroll values are floats.
** Affects: canonical-devices-system-image
Importance: Undecided
Status: New
** Affects: qtmir
Importance: High
Status: New
** Affects: qtmir (Ubuntu)
Importance: High
Status: New
** Tags: input unity8-desktop usability
** Changed in: qtmir (Ubuntu)
Importance: Undecided => High
** Also affects: qtmir
Importance: Undecided
Status: New
** Changed in: qtmir
Importance: Undecided => High
** Also affects: canonical-devices-system-image
Importance: Undecided
Status: New
** Tags added: unity8-desktop
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https://bugs.launchpad.net/bugs/1607223
Title:
Smooth two-finger touchpad scrolling doesn't work in apps under Unity8
(but does work in Mir demo servers)
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