Description: Choppy scrolling in multi-page view; especially with OpenGL enabled but also noticeable without Steps to Reproduce: 1. Open the attached file 2. Go to multipage view (3 pages in a row) 3. Scroll down (notice a lag & higher CPU usage compared to prior versions) Actual Results: Lag Expected Results: Smooth scrolling Reproducible: Always User Profile Reset: No OpenGL enabled: Yes Additional Info: Version: 6.2.0.0.alpha1+ Build ID: 4fa9e6f7f891b335ae1b432e0848c1e46c8fe3ef CPU threads: 4; OS: Windows 6.3; UI render: GL; VCL: win; TinderBox: Win-x86@42, Branch:master, Time: 2018-10-30_22:44:48 Locale: nl-NL (nl_NL); Calc: CL
Created attachment 146212 [details] Example file
Created attachment 146213 [details] Bibisect log Bisected to: author Tor Lillqvist <tml@collabora.com> 2015-08-12 08:18:50 +0300 committer Tor Lillqvist <tml@collabora.com> 2015-08-12 09:14:20 +0300 commit 4667db065d34193d99bce82f7e8f3b20a03ecade (patch) tree 405ac0a286040b8a983701f167c583c45691685b parent 695cec87d73d56617e1cdc62621971ab35ac67eb (diff) Drop SimpleWinLayout Use Uniscribe also for non-complex text. It is complicated enough to have separate Graphite and Uniscribe layout engines. Will make further changes to the code easier to manage, especially as with the UniscribeLayout code we have access to the actual glyphs. (Cf. 3e47219e06b9a279ba22a9bbef668731f2d3e07d) https://cgit.freedesktop.org/libreoffice/core/commit/?id=4667db065d34193d99bce82f7e8f3b20a03ecade
Version: 6.3.0.0.alpha0+ (x64) Build ID: 0f25a3c36f27fd51453b9a9115f236b83c143684 CPU threads: 8; OS: Windows 10.0; UI render: GL; VCL: win; TinderBox: Win-x86_64@42, Branch:master, Time: 2018-11-27_20:06:55 Locale: zh-TW (zh_TW); UI-Language: en-US Calc: threaded The new version doesn't have the problem.
I'm still experiencing a lag Version: 6.3.0.0.alpha0+ Build ID: f21d2b48bd68424a96aa6cd5572e368208378291 CPU threads: 4; OS: Windows 6.3; UI render: default; VCL: win; TinderBox: Win-x86@42, Branch:master, Time: 2018-11-27_00:26:54 Locale: en-US (nl_NL); UI-Language: en-US Calc: CL
I can confirm that the bug is present. I can definitely see the difference in scroll between normal page view and multi page view in my version. Version: 6.0.6.2 Build ID: 0c292870b25a325b5ed35f6b45599d2ea4458e77 CPU threads: 2; OS: Windows 6.1; UI render: default; Locale: en-US (en_US); Calc: group
Adding Cc: to Tor Lillqvist
Dear Telesto, To make sure we're focusing on the bugs that affect our users today, LibreOffice QA is asking bug reporters and confirmers to retest open, confirmed bugs which have not been touched for over a year. There have been thousands of bug fixes and commits since anyone checked on this bug report. During that time, it's possible that the bug has been fixed, or the details of the problem have changed. We'd really appreciate your help in getting confirmation that the bug is still present. If you have time, please do the following: Test to see if the bug is still present with the latest version of LibreOffice from https://www.libreoffice.org/download/ If the bug is present, please leave a comment that includes the information from Help - About LibreOffice. If the bug is NOT present, please set the bug's Status field to RESOLVED-WORKSFORME and leave a comment that includes the information from Help - About LibreOffice. Please DO NOT Update the version field Reply via email (please reply directly on the bug tracker) Set the bug's Status field to RESOLVED - FIXED (this status has a particular meaning that is not appropriate in this case) If you want to do more to help you can test to see if your issue is a REGRESSION. To do so: 1. Download and install oldest version of LibreOffice (usually 3.3 unless your bug pertains to a feature added after 3.3) from https://downloadarchive.documentfoundation.org/libreoffice/old/ 2. Test your bug 3. Leave a comment with your results. 4a. If the bug was present with 3.3 - set version to 'inherited from OOo'; 4b. If the bug was not present in 3.3 - add 'regression' to keyword Feel free to come ask questions or to say hello in our QA chat: https://web.libera.chat/?settings=#libreoffice-qa Thank you for helping us make LibreOffice even better for everyone! Warm Regards, QA Team MassPing-UntouchedBug