https://bugs.documentfoundation.org/show_bug.cgi?id=152911
--- Comment #63 from Gauthier <[email protected]> --- (In reply to oirnoir from comment #62) > (In reply to Michael Weghorn from comment #60) > > (In reply to Guido Iodice from comment #59) > > > Yes, but when LO is updated, the file is overwritten. It would be more > > > useful to have an environment variable like LO_USE_XCB or SAL_USE_XCB or > > > if > > > you want to restrict the field to QT then LO_QT_USE_XCB > > > > True. I'm somewhat hesitant to make the the shell wrapper more complex, > > however. > > > > For now, I'd suggest either using SAL_USE_VCLPLUGIN=gtk3 (which is > > LO-specific), or editing the desktop file (to set the environment variable > > or to set a path that points to a wrapper that has the environment variable > > set, if directly setting the env variable doesn't work for whatever reason). > > > > But of course, feel free to create a separate feature request if you still > > think that this should be implemented. > > I've also been experiencing this issue. > > My solution since November has been to add additional .desktop files to > ~/.local/share/applications which start the app using QT_QPA_PLATFORM=xcb. > This works for me, except of course, the X11 version looks odd with > fractional display scaling (1.5x). Setting SAL_USE_VCLPLUGIN=gtk3 doesn't > have issues with scaling, but scrolling is still inefficient and stuttery. > It is much better than native, though, but causes the same spike in a single > CPU core before stuttering when scrolling through long documents. The xcb > version, however, barely uses any CPU no matter how fast or far I scroll in > said long document. > > Since such smooth performance is available via XWayland while still running > under a Wayland session, it makes me wonder whether the root problem is > within Wayland itself or within LibreOffice's implementation thereof. > > Operating System: Fedora Linux 41 > KDE Plasma Version: 6.3.1 > KDE Frameworks Version: 6.11.0 > Qt Version: 6.8.2 > Kernel Version: 6.12.15-200.fc41.x86_64 (64-bit) > Graphics Platform: Wayland > Processors: 22 × Intel® Core™ Ultra 7 155H > Memory: 46.7 GiB of RAM > Graphics Processor: Mesa Intel® Arc > Manufacturer: Notebook > Product Name: V54x_6x_TU > System Version: V540TU OMG QT_QPA_PLATFORM=xcb is such a saver. Scrolling is back to perfectly smooth no matter my screen configurations. In my case editing adding the ENV variable through editing the various LO lunchers via KDE Kickoff menu edit worked brilliantly. The only drawback is that when opening a document it now creates an additional icon in the Icon-Only tasks manager on top of the pinned application icon. -- You are receiving this mail because: You are the assignee for the bug.
