Description: Since I have updated my system to plasma 6, impress does not show presentations correctly anymore. Only the top left quarter of the slide appears on the projected screen. The external screen works correctly otherwise. Plasma 6 is running on wayland. The external screen has no magnification, the laptop screeh has magnification set to 150% (this might also play a role). Might have to to with the fact that the switch to plasma 6 caused a switch to the kf6 VCL plugin in LibO. Steps to Reproduce: 1. Open a presentation 2. Start the presentation with an external screen attached Actual Results: Only a part of the slides is shown Expected Results: Slides are correctly shown. Reproducible: Always User Profile Reset: No Additional Info: Version: 24.2.3.2 (X86_64) / LibreOffice Community Build ID: 420(Build:2) CPU threads: 16; OS: Linux 6.8; UI render: default; VCL: kf6 (cairo+wayland) Locale: it-IT (en_US.UTF-8); UI: en-US 24.2.3-1 Calc: threaded
Made more tests, now I know what is going on. This is due to the fact that the QT and kf VCLs do not cope with display scaling correctly. Previously I had the VCL set to gtk3_Kf5 to avoid issues like this. On plasma 6, gtk3_kf5 does not work. Using gtk3 the presentations are fine (so this is a workaround for the time being). On plasma 6 there does not seem to be a gtk3_kf6 VCL, is this correct? Is there a way to list the supported VCLs?
(In reply to Callegar from comment #1) > This is due to the fact that the QT and kf VCLs do not cope with display > scaling correctly. Indeed, we're tracking this multimonitor + scaling + KDE/Qt + Wayland issue in bug 141578. See a potential temporary workaround in bug 141578 comment 61. > Is there a way to list the supported VCLs? Please see https://wiki.documentfoundation.org/Development/Environment_variables#General *** This bug has been marked as a duplicate of bug 141578 ***