I believe that I have also stumbled on this bug and it seems to be very cumbersome to trigger.
In my experience this bug triggered more by non-uniform row height than column width. Can anyone else trigger this bug with uniform column width and non-uniform row height? Also in my case, forcing uniform row height does fix this issue. Even if you change the height of some row afterwards. But it is only fixed for the current zoom level. If you change the zoom level, the flickering will come back on some other zoom level. Now the bug just manifests itself on a different zoom level than previously. Also, in some situations all of the menus and dialogs show up empty, while this bug is active. On multiple occasions, I have been able to trigger this with just one form control, but for some reason I can not find a pattern that would work always. With two controls it is more consistent, but with two controls I have not experienced the disappearing of menus and dialogs. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libreoffice in Ubuntu. https://bugs.launchpad.net/bugs/1846940 Title: [upstream] Loop in libreoffice-calc when scrolling to top of spreadsheet Status in LibreOffice: Confirmed Status in libreoffice package in Ubuntu: Confirmed Bug description: Have a spreadsheet used in many past release of calc that is now failing. When opening this sheet and if not currently at the top of the sheet using the mouse wheel to move to the top (top line to the top of the window) soffice.bin goes to 100% cpu and stays there. Can't use the mouse wheel to move off of the top line. Can move off the top line by using the mouse and scroll bar. As soon as you are off the top line the loop in soffice.bin stops. This is the only sheet I can find that fails but it does fail on this laptop and also my desktop which is also running Ubuntu 19.10/libreoffice- calc-6.3.2.2. Adding failing spreadsheet file to this bug report. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: libreoffice-calc 1:6.3.2-0ubuntu2 ProcVersionSignature: Ubuntu 5.3.0-13.14-generic 5.3.0 Uname: Linux 5.3.0-13-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sun Oct 6 06:35:42 2019 InstallationDate: Installed on 2019-10-03 (2 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Beta amd64 (20191001.2) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: libreoffice UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/df-libreoffice/+bug/1846940/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

