Description: I am using a laptop and have an external display connected and set as "join displays" as opposed to mirrored mode. When I start the presentation I just created, it takes a while for the first slide to show up. Additionally, whenever I go to the next slide it sometimes takes multiple second to do so. Sometimes the laptop screen will flicker once it finally goes to the next slide. Creating a simple two slide presentation does not display the same issue. The attached presentation has the issue for me, also attached is a screen recording of the issue. Steps to Reproduce: 1.Open LibreOffice Impress 2.Create a slideshow with at least 2 slides 3.Click the Start from First Slide button Actual Results: Changing slides takes multiple seconds Expected Results: Changing slides happens near instantaneously. Reproducible: Always User Profile Reset: Yes Additional Info: Version: 25.2.6.2 (X86_64) / LibreOffice Community Build ID: 40d1a0e1d5bdf1afaeae24d9ece32bbb00fa66a4 CPU threads: 4; OS: Linux 6.17; UI render: default; VCL: gtk3 Locale: en-US (en_US.UTF-8); UI: en-US Calc: threaded
Created attachment 203778 [details] Screen recording of me reproducing the bug Added screen recording
Created attachment 203779 [details] The presentation that displays the described bug for me Added the .odp presentation
Additional system details: # System Details Report --- ## Report details - **Date generated:** 2025-11-06 19:43:56 ## Hardware Information: - **Hardware Model:** Dell Inc. Inspiron 5567 - **Memory:** 8.0 GiB - **Processor:** Intel® Core™ i7-7500U × 4 - **Graphics:** Intel® HD Graphics 620 (KBL GT2) - **Graphics 1:** AMD Radeon™ R5 M445 Series - **Disk Capacity:** 256.1 GB ## Software Information: - **Firmware Version:** 1.5.0 - **OS Name:** Ubuntu 25.10 - **OS Build:** (null) - **OS Type:** 64-bit - **GNOME Version:** 49 - **Windowing System:** Wayland - **Kernel Version:** Linux 6.17.0-6-generic
When testing your presentation the slide transition only took about half a second for me, but I did see the screen flickering you mentioned about 60% of the time. Version: 25.8.2.2 (X86_64) Build ID: d401f2107ccab8f924a8e2df40f573aab7605b6f CPU threads: 32; OS: Windows 11 X86_64 (build 26100); UI render: Skia/Vulkan; VCL: win Locale: en-US (en_US); UI: en-US Calc: CL threaded
I don't have multiple screens, so I used Slide Show - Slide Show Settings - Presenter console: Windowed. I confirm the flickering with some slides, not all. The ability to use windowed presenter console was added in 24.2. I suppose the flickering is older. I don't reproduce the slowness. I noticed an unreleased regression in the Presenter console slideshow and reported it as bug 169533 Arch Linux 64-bit Version: 26.2.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: 6e0d9ef6fd8ce744d5a296798e2a4a56ac12b313 CPU threads: 8; OS: Linux 6.17; UI render: default; VCL: gtk3 Locale: fi-FI (fi_FI.UTF-8); UI: en-US Calc: CL threaded Built on 13 November 2025