Arch Linux

Description:

After logging in, the first element on the Desktop that I click with a mouse continue working just fine, but other elements don't respond to mouse clicks. For example, if I click on the bottom panel, then the top panel and the rest of the desktop are irresponsive and vice versa. Also, if I manage to launch a window, then I may be able to select text with the mouse, but not maximize/minimize it.

Strangely, if I logout/login or even restart the lightdm service, the problem is gone. I have to reboot to reproduce it again.

I first noticed the problem after upgrade and I'm not sure whether it's related to xfce4, lightdm or gtk. I will attach the good and bad package versions.

My Arch Guest runs on VirtualBox 5.2.8 on Windows 7 Host. The guest additions are unnecessary to reproduce the bug.
I was able to reproduce it on a clean Arch installation with just: xfce4 xorg-server lightdm lightdm-gtk-greeter


Additional info:
* package version(s)
attached

* config and/or log files etc.

Steps to reproduce:

- Install Arch on a VBox.
- Run commands:
pacman -S xfce4 xorg-server lightdm lightdm-gtk-greeter --needed --noconfirm
useradd test
passwd test
systemctl start lightdm

- login