Scrolling up with touchpad using two fingers is choppy and slow, sometimes almost impossible. When I use an usb mouse the scrolling is not choppy, but both scrolling up/down are slower than on rest of my system. No problem under x11.
I can confirm this. I thought it was https://bugreports.qt.io/browse/QTBUG-57186 but it happens also on Wayland (where other qml applets work fine), so it must be something else.
Can confirm in Plasma 5.10.5 under Kubuntu 17.10.
(In reply to Øystein Alværvik from comment #2) > Can confirm in Plasma 5.10.5 under Kubuntu 17.10. Under Xorg, mind, but seems to only happen in Discover.
Pretty sure this is a dupe of Bug 380511. *** This bug has been marked as a duplicate of bug 380511 ***
Un-duping, since this happens in Wayland and the bug I had erroneously duped this to involves Xorg. The slow wheel issue is a separate bug that's tracked with https://bugs.kde.org/show_bug.cgi?id=385836
And for people who experience a variant of this on Xorg, here's the bug for that: Bug 390219.
this is due to the fact that scrolling with any flickable, especially if this involves libinput, is a tragedy. (so yes, really the same issue of 380511 being on x11 or wayland is not relevant here, is more libinput vs xi2) And not much we can do about it downstream my side is full of hacks to mitigate issues, which in turn gives many other problems (causing at least 10 separate bug reports) but i'm extremely hesitant to remove them as scrolling in base qtquick just doesn't work, and seem to behave radically different on every single machine
Is this still reproducible in Neon dev unstable or with the upcoming Frameworks 5.58 release? Sounds like there's a good chance it was fixed by https://cgit.kde.org/kirigami.git/commit/?id=aa24a7073a301b69be1b35496e1875d0213d63bd, which fixed all the other scrolling-related issues in Kirigami scrollviews.
I tested scrolling (on Wayland) in Discover with a touchpad on neon dev unstable and with an usb mouse on Arch after upgrade to frameworks 5.58. Scrolling is not choppy anymore, but I think it is still a bit slower compared to the scrolling in other kde softwares on both systems. When I run 'ls /usr/bin' in konsole and scroll the output up and down, scrolling seems faster than the scrolling in Discover.
Sounds like this particular bug is fixed, then. Can you open a new one for the new (thankfully less severe) issue you're encountering now? Thanks!