Public bug reported: I just upgraded Xubuntu from 18.10 to 19.04 and immediately noticed a regression in the behavior of the Alt-Tab keyboard shortcut to cycle windows: my Slack window is not included. It is installed via snap:
slack 3.4.0 13 stable slack✓ classic I have several windows open besides Slack—Chromium, Emacs, Terminal, etc.—and all are visible in the notification bar at the top of my screen. But Slack is never included in the list of windows shown in the Alt-Tab dialog (all other windows are). There was no such problem prior to the upgrade. There is a Slack icon in the Indicator plugin, from which I can open the Slack window, but that seems to be the only way. Restarting Slack does not help. I have tried flipping all the checkboxes in the Window Manager Tweaks » Cycling dialog (e.g., Skip windows that have "skip pager" or "skip taskbar" properties set) without success. ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: xfwm4 4.12.5-1ubuntu1 ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6 Uname: Linux 5.0.0-13-generic x86_64 ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 CurrentDesktop: XFCE Date: Wed May 1 21:04:41 2019 InstallationDate: Installed on 2016-10-25 (918 days ago) InstallationMedia: Xubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2) ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: xfwm4 UpgradeStatus: Upgraded to disco on 2019-05-02 (0 days ago) modified.conffile..etc.default.apport: # set this to 0 to disable apport, or to 1 to enable it # you can temporarily override this with # sudo service apport start force_start=1 enabled=0 mtime.conffile..etc.default.apport: 2017-12-12T15:20:09.416553 ** Affects: xfwm4 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug disco -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1827302 Title: 18.10 → 19.04 Alt-Tab cycling no longer includes Slack window To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xfwm4/+bug/1827302/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs