Although not using Ubuntu directly, I am using Mint, which is based on it (Tina - 19.2, based on Bionic, MATE edition). Might be the same problem. If not applicable, then please ignore my comment. I can reproduce this in all machines I have, in a few simple steps:
1-Open a terminal and leave 'top' open to check the processes; 2-Open 'xed' 3-Press shift inside of xed 4-Look at the terminal running top 5-To make it stop using 100% cpu, simply change focus to any window other than xed (the terminal, for example). This happens everytime, and is really annoying. If I try to copy text (ctrl-c), it triggers the bug as well, and forces me to change focus to have the system become usable again. I have attached a screenshot of my top output while the bug is happening. Before triggering it, all processes were running below 1% according to top. ** Attachment added: "Screenshot at 2020-01-07 11-15-44.png" https://bugs.launchpad.net/ubuntu/+source/ibus/+bug/1766503/+attachment/5318215/+files/Screenshot%20at%202020-01-07%2011-15-44.png -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ibus in Ubuntu. https://bugs.launchpad.net/bugs/1766503 Title: ibus-* randomly use high CPU Status in The Ubuntu Power Consumption Project: Confirmed Status in ibus package in Ubuntu: Confirmed Bug description: ibus-* randomly use high CPU in Ubuntu 18.04 In fact, I think it's now using more CPU overall than the shell itself is to redraw a 4K screen: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3308 dan 20 0 4009804 192676 84804 R 45.7 2.4 1:13.65 gnome-shell 3352 dan 20 0 384364 26796 20552 S 13.9 0.3 0:22.81 ibus-x11 3372 dan 20 0 217944 10620 7764 S 10.9 0.1 0:16.20 ibus-engin+ 3350 dan 20 0 293828 10384 7516 R 10.6 0.1 0:16.54 ibus-dconf 3346 dan 20 0 374572 11944 8268 S 10.3 0.1 0:15.93 ibus-daemon ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ibus 1.5.17-3ubuntu4 ProcVersionSignature: Ubuntu 4.15.0-19.20-generic 4.15.17 Uname: Linux 4.15.0-19-generic x86_64 ApportVersion: 2.20.9-0ubuntu6 Architecture: amd64 Date: Tue Apr 24 15:29:07 2018 InstallationDate: Installed on 2017-12-12 (133 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20171211) SourcePackage: ibus UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-consumption/+bug/1766503/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
