https://bugs.kde.org/show_bug.cgi?id=476536
Bug ID: 476536
Summary: New overview/grid animation does not feel as precise
when using touchpad gestures
Classification: Plasma
Product: kwin
Version: master
Platform: Compiled Sources
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: effects-overview
Assignee: kwin-bugs-n...@kde.org
Reporter: putr...@gmail.com
Target Milestone: ---
SUMMARY
In Plasma 5, the overview and desktop grid effects had great one-to-one
touchpad gestures, as in that the progress of the animation feels tied exactly
to where my fingers were on the touchpad. However, on Plasma 6 the new
overview/grid effect feels laggier, like it's slightly behind what my fingers
were actually doing.
The issue is especially clear at slower animation speeds, for example if I do
the 4 finger down gesture quickly but stop halfway the animation will take its
time before arriving at where my fingers are, and then if I finish the gesture
quickly the animation will also take its time before finishing. This is in
contrast to the slide animation for switching between virtual desktops, which
will always follow the speed of my fingers as long as I keep them on the
touchpad, regardless of the animation speed.
The issue goes away if I set the animation speed to Instant, in that case the
animation feels just as great as it did in Plasma 5 as long as I keep my
fingers on the touchpad the whole way, although of course the problem with that
workaround is that all other animations are gone.
STEPS TO REPRODUCE
1. Lower the animation speed (optional, so the problem is more obvious)
2. Do either a 4 finger up or 4 finger down touchpad gesture, but stop halfway
and keep all 4 fingers on the touchpad
OBSERVED RESULT
The overview/grid animation stops after the motion of the fingers stop.
EXPECTED RESULT
The overview/grid animation stops at the same time as the fingers do.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.27.80
KDE Frameworks Version: 5.240.0
Qt Version: 6.6.0
Kernel Version: 6.5.9-arch2-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 6800H with Radeon Graphics
Memory: 30.6 GiB of RAM
Graphics Processor: AMD Radeon Graphics
ADDITIONAL INFORMATION
This is on a kdesrc-build session of Plasma 6, with KWin at commit
abf642d42e8189deaabf1999661e83aab25b99fa.
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