https://bugs.kde.org/show_bug.cgi?id=451042
Bug ID: 451042 Summary: Insanely fast scrolling on file icon picker with high-res scroll wheel Product: dolphin Version: 21.12.2 Platform: Manjaro OS: Linux Status: REPORTED Severity: normal Priority: NOR Component: view-engine: icons mode Assignee: dolphin-bugs-n...@kde.org Reporter: micaeljarn...@gmail.com CC: kfm-de...@kde.org Target Milestone: --- Created attachment 147242 --> https://bugs.kde.org/attachment.cgi?id=147242&action=edit GIF where I scroll by the same amount, a single "click" on both the file browser and the icon browser SUMMARY With a high-resolution scroll wheel, such as the one found on the MX Master 3 mouse, scrolling in the file icon picker is insanely fast. I believe that's because that specific window has no support for high-resolution scrolling, but is still using each high-resolution scroll step as one entire low-resolution step. There are several high-resolution steps per low-resolution step, IIRC something like 8, so scrolling on that window is roughly 8x faster than it should be. On the normal file manager, scrolling is at a normal speed, and it does seem to support high-resolution scrolling. On the GIF, every time I scrolled, it was only a single step. You can notice that on the normal file manager, it scrolls a normal amount, but on the icon picker, it scrolls a lot more. STEPS TO REPRODUCE 1. Have a high-resolution scrolling device (MX Master 3 in my case) 2. Go to the file manager, on a folder that requires scrolling 3. Scroll by a single "click" on the mouse wheel 4. Notice scrolling is at a normal speed 5. Go to the icon picker for a file or folder 6. Scroll the icons by the same amount as before, a single "click" 7. Notice that it now scrolls a whole lot more, at an insanely fast speed OBSERVED RESULT It scrolls a lot more, and a lot faster, on the icon picker. EXPECTED RESULT It should scroll by the same amount, and at the same speed, on all scrollable elements. High-resolution scrolling should be properly supported on all elements. SOFTWARE/OS VERSIONS Operating System: Manjaro Linux KDE Plasma Version: 5.24.2 KDE Frameworks Version: 5.91.0 Qt Version: 5.15.2 Kernel Version: 5.15.25-1-MANJARO (64-bit) Graphics Platform: X11 Processors: 4 × AMD Ryzen 3 2200G with Radeon Vega Graphics Memory: 7.7 GiB of RAM Graphics Processor: NVIDIA GeForce GTX 970/PCIe/SSE2 -- You are receiving this mail because: You are watching all bug changes.