Additional observations (now someone's taken notice ;-) and I'm reminded of it myself):
It affects Wayland sessions too. Not xorg-specific. Affects suspend/resume cycle too, not just display-sleep. It may not affect all QT apps. For instance, since reporting this bug I've switched from Owncloud to Nextcloud, and nextcloud-client seems not to be affected, although, like the owncloud-client, its icon is half- size on HiDPI but that probably should be a separate bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1712866 Title: icons from qt applications disappear after screen lock/sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-appindicator/+bug/1712866/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs