Description of problem: When you move the mouse pointer over a calendar event, the tooltip with the event text disappear almost immediately, making impossible to read the text. Version-Release number of selected component (if applicable): evolution-3.26.6-1.fc27.x86_64 How reproducible: Always Steps to Reproduce: 1. Create a calendar event with some text 2. Move the mouse pointer over the event Actual results: Impossible to read the tooltip Expected results: A readable tooltip Additional info: I'm using a gnome-shell wayland session.
Updating to F28 (evolution-3.28.1-2.fc28.x86_64) has resolved this issue.
Thanks for a bug report. I'm not aware of anything in particular what would change that behaviour directly in Evolution code, maybe some lower library, like gtk+, caused some change in the behaviour, but it's only a guess. I can reproduce this with evolution 3.26.6-1 and gtk3-3.22.26-2 in Fedora 27 and looking on evolution's terminal (when run from it), I see a runtime warning from gtk3 just in time when it should show the tooltip: > (evolution:23278): Gdk-WARNING **: Window 0x7f27a00031a0 is already mapped at > the time of grabbing. gdk_seat_grab() should be used to simultanously grab > input and show this popup. You may find oddities ahead. A similar warning is shown in Fedora 28 with evolution-3.28.1-2 and gtk3-3.22.29-2, but the tooltip is shown. I believe some change in gtk3 corrected it.