Bug 457556 - Honor high resolution scrollwheels
Summary: Honor high resolution scrollwheels
Status: RESOLVED FIXED
Alias: None
Product: kwin
Classification: Plasma
Component: wayland-generic (show other bugs)
Version: 5.25.4
Platform: Other Linux
: NOR wishlist
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-08-06 16:08 UTC by Naomi Calabretta
Modified: 2023-04-05 15:29 UTC (History)
5 users (show)

See Also:
Latest Commit: https://invent.kde.org/plasma/kwin/-/commit/c14734087866ee002e129bcaffe364a8b4036112?merge_request_iid=3034
Version Fixed In: 5.27.0
Sentry Crash Report:

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Description Naomi Calabretta 2022-08-06 16:08:08 UTC 
SUMMARY
Wayland 1.21 introduced high-res scroll events to wl_pointer[1]. It would be nice to have KWin updated so that applications get the smooth scrolling treatment (as it is with Plasma on X11 -- so it's feature parity, really).


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Artix Linux rolling/KDE Plasma 5.25.4
(available in About System)
KDE Plasma Version: 5.25.4
KDE Frameworks Version: 5.96.0
Qt Version: 5.15.5

ADDITIONAL INFORMATION
[1]: https://lists.freedesktop.org/archives/wayland-devel/2022-June/042268.html
Comment 1 gudvinr+kde 2023-02-22 12:47:43 UTC 
So, how is this supposed to work?

In kwin debug console you can see micro steps but apps do not seem to care.
Firefox still jumps only on full step. Same with KDE apps like kate or okular.
Comment 2 Vlad Zahorodnii 2023-02-22 14:22:30 UTC 
(In reply to gudvinr+kde from comment #1)
> So, how is this supposed to work?
> 
> In kwin debug console you can see micro steps but apps do not seem to care.
> Firefox still jumps only on full step. Same with KDE apps like kate or
> okular.

It requires Qt and GTK support too.

Qt will support high resolution scrolling in 6.5. No idea about GTK