This bug was fixed in the package qtubuntu -
0.63+16.10.20160809-0ubuntu1
---------------
qtubuntu (0.63+16.10.20160809-0ubuntu1) yakkety; urgency=medium
[ Daniel van Vugt ]
* Use correct scrolling scale of 120 as documented: (LP: #1607223,
#1607240)
[ Gerry Boland ]
* Reapply rev 324 plus fix: EGL convenience, plus workaround for
hybris not supporting GLESv3. (LP: #1507817, #1594198)
* Logging: separate graphics & cursor logging into their own logging
categories
-- Michał Sawicz <[email protected]> Tue, 09 Aug 2016
23:01:21 +0000
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Touch seeded packages, which is subscribed to qtubuntu in Ubuntu.
https://bugs.launchpad.net/bugs/1607223
Title:
Two-finger touchpad scrolling is not accurate in apps under Unity8
(but is in Mir demo servers)
Status in Canonical System Image:
Fix Committed
Status in QtMir:
Fix Committed
Status in qtubuntu:
Fix Committed
Status in qtmir package in Ubuntu:
Fix Released
Status in qtubuntu package in Ubuntu:
Fix Released
Bug description:
Smooth two-finger touchpad scrolling is not accurate in apps under
Unity8 (but is 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.
I have only just discovered that although my new smooth scrolling
support about to land in Xmir works in Mir's demo servers, it doesn't
work when I run the same binaries under Unity8.
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https://bugs.launchpad.net/canonical-devices-system-image/+bug/1607223/+subscriptions
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