https://bugs.documentfoundation.org/show_bug.cgi?id=152911
--- Comment #95 from [email protected] --- I'm having this issue too on a fresh Debian 13 install, running Wayland/KDE. Scrolling through a large Calc spreadsheet using the mouse wheel or by dragging the scroll bar on the far-right of the screen causes horrible lag and eventually unresponsiveness (tested on a 855 column/19 row sheet filled with data in every cell). Using page up/down or the arrow keys does not cause lag and may be a potential workaround for some. Using QT_QPA_PLATFORM=xcb as an environment variable to run LibreOffice in X11 removes the lag for me, so I'm doing that as a workaround for now. Using SAL_USE_VCLPLUGIN=gtk3 fixes the worst of the lag/unresponsiveness, though it's still noticeably slower than using kf6 under X11 when doing things, such as using the page up/down buttons. You're also forced to use the GTK file picker to open/save files when using gtk3, which makes that a non-viable solution for me. Software/Hardware info: Operating System: Debian GNU/Linux 13 KDE Plasma Version: 6.3.6 KDE Frameworks Version: 6.13.0 Qt Version: 6.8.2 Kernel Version: 6.12.38+deb13-amd64 (64-bit) Graphics Platform: Wayland Processors: 12 × AMD Ryzen 5 5560U with Radeon Graphics Memory: 16 GiB of RAM (12.6 GiB usable) Graphics Processor: AMD Radeon Graphics Manufacturer: AZW Product Name: SER LibreOffice info: Version: 25.2.3.2 (X86_64) / LibreOffice Community Build ID: 520(Build:2) CPU threads: 12; OS: Linux 6.12; UI render: default; VCL: kf6 (cairo+wayland) Locale: en-US (en_US.UTF-8); UI: en-US Debian package version: 4:25.2.3-2 Calc: threaded -- You are receiving this mail because: You are the assignee for the bug.
