Window buttons are not clickable at the top of the screen

Bug #1795135 reported by Sean Davis on 2018-09-29
This bug affects 3 people
Affects Status Importance Assigned to Milestone
greybird-gtk-theme (Ubuntu)

Bug Description

This bug affects greybird-gtk-theme and xfce4-panel in Xubuntu Cosmic.

With Cosmic, it is not possible to click on the window buttons after moving the mouse cursor to the top of the screen. Unlike similar bugs, no amount of moving left or right triggers the hover event or the ability to click on the window button.

With Adwaita and Numix, we see the same issues we see elsewhere, where the buttons can sometimes be clicked, but also have issue with the topmost part of the screen.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: greybird-gtk-theme 3.22.9-0ubuntu1
ProcVersionSignature: Ubuntu 4.18.0-7.8-generic 4.18.5
Uname: Linux 4.18.0-7-generic x86_64
ApportVersion: 2.20.10-0ubuntu11
Architecture: amd64
CurrentDesktop: XFCE
Date: Sat Sep 29 09:05:24 2018
InstallationDate: Installed on 2018-09-29 (0 days ago)
InstallationMedia: Xubuntu 18.10 "Cosmic Cuttlefish" - Beta amd64 (20180929)
PackageArchitecture: all
SourcePackage: greybird-gtk-theme
UpgradeStatus: No upgrade log present (probably fresh install)

Sean Davis (bluesabre) wrote :
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in greybird-gtk-theme (Ubuntu):
status: New → Confirmed
Simon Steinbeiß (ochosi) wrote :

I guess you noticed this already but the problem only occurs at 0x0, so with a panel on the left or a panel on the top of the screen.
The behavior is fine with panel on the right or lower side of the screen.

That's why I would say it's not related to theming at all, potentially not even the panel...

Simon Steinbeiß (ochosi) wrote :

In fact if you debug the panel a bit you'll see that the enter-notify and leave-notify events are constantly firing with a panel at 0x0 and behaving correctly on the other screen edges.

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