Problem with GTK4 Combo Boxes and X11 forwarding.
Steps to reproduce
A Fedora 35 workstation is installed on a virtual machine on Windows 10/11 using Hyper-V.
- From Windows, use MobaXterm to open a ssh session with the Fedora VM. X11 forwarding is activated.
- Execute the gtk4-demo command.
- Run the Combo Boxes demo.
- Click on a first Combo Box to open the list content.
- Click on a second Combo Box to open the list content.
Current behavior
When clicking on the first Combo Box, the list is displayed but with an black box outline.
When clicking on the second Combo Box, the list is not displayed and the application cannot be closed. The CTRL-C key combinaison must be used to quit the application.
It seem the list start to be displayed on the background (when clicking on Boston). On the following capture, a small white box is displayed under the main window.
Expected outcome
All Combo Boxes can be opened.
Version information
Fedora 35 gtk4-4.4.1-1.fc35.x86_64 gtk4-devel-4.4.1-1.fc35.x86_64 gtk4-devel-tools-4.4.1-1.fc35.x86_64
MobaXterm Personal Edition v21.5 Build 4826
Additional information
When doing the same test directly using the Hyper-V connection interface, there is no problem.