https://bugs.documentfoundation.org/show_bug.cgi?id=166444
--- Comment #7 from V Stuart Foote <[email protected]> --- Not observing a *substantial* or *unacceptable* delay. Even in the attached screen casts, or extracted table of delays. I don't believe there is an implementation issue, always correct results--just observed slowness of updating the buffered views of the UI. And that can certainly be made worse by incorrectly configured GPU or graphics drivers as noted in the reddit thread. IMHO UI behavior is consistent between the 4 LO rendering modes (though at decreasing rendering speeds): skia/Vulkan, skia/Raster, CPU controlled Hardware Acceleration, or CPU only. On the Notebook Bar Tabbed UI Paragraph selected and changes between "supported" styles are immediate in the NB Tabbed UI Styles preview only for styles with defined style previews as provided to the Notebookbar UI, provided via svx StylesPreviewWindow(). On the NB the Style preview updates equally fast, but those styles with no defined preview seem to show the last matched "supported" style, or the Default para style preview--the Sidebar Style picker (text and preview) update to correct style immediately. Likewise UI updates to tb list box of paragraph/font or SB styles (with or without its 'Show previews' checkbox) are equally performant to those on the Notebook Bar assemblages. Perceptual delay, stuttering, or asymmetrical timings within a UI can make for unpleasant UX--but I don't think we have any of those here. =-testing-= Win11 24H2 (OS Build 26100.33775) on Intel(R) Core(TM) i7-14700, 2100 Mhz, 20 Core(s), 28 Logical Processor(s) Version: 25.8.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: e4fb32ffef1630ceaf5a0a77307e02ae93c9f8f4 CPU threads: 28; OS: Windows 11 X86_64 (build 26100); UI render: Skia/Vulkan; VCL: win Locale: en-US (en_US); UI: en-US Calc: CL threaded And UI render: UI render: default; VCL: win (HA and CPU only) UI render: Skia/Raster; VCL: win UI render: Skia/Vulkan; VCL: win vulkaninfo Device Properties and Extensions: ================================= GPU0: VkPhysicalDeviceProperties: --------------------------- apiVersion = 1.4.303 (4210991) driverVersion = 572.60.0.0 (2400124928) vendorID = 0x10de deviceID = 0x2803 deviceType = PHYSICAL_DEVICE_TYPE_DISCRETE_GPU deviceName = NVIDIA GeForce RTX 4060 Ti pipelineCacheUUID = a552de6d-1faf-8ad5-3314-6af41289f0a5 -- You are receiving this mail because: You are the assignee for the bug.
