QSystemTrayIcon::isSystemTrayAvailable returns false on RHEL 8 (X11 GNOME)

[Sahil_Rangari]

Hi,

We are using Qt 5.5.1 for an app.
It works well on RHEL 7.x.

However, on RHEL 8.0 it exits as we have the following:
if (!QSystemTrayIcon::isSystemTrayAvailable()) {
LOG_CRITICAL("Couldn't detect any system tray on this system.");
return 1;
}

We are using GNOME (3.28.2) X11 as the environment.

Can you please let know as to why this is occurring, and if there is a workaround?

Also, does this apply?
https://bugreports.qt.io/browse/QTBUG-31762

Have also performed the following:
sudo yum install libcanberra-gtk2.x86_64
sudo yum install libcanberra-gtk3.x86_64
sudo yum install libcanberra-devel.x86_64

Thanks.

[jsulm]

@Sahil_Rangari said in QSystemTrayIcon::isSystemTrayAvailable returns false on RHEL 8 (X11 GNOME):

Qt 5.5.1

Can you try with a more recent version?
Also, is this the Qt installation provided by RHEL 8.0?
If not can you try with Qt provided by RHEL 8.0?

[Sahil_Rangari]

Hi,

Installing gnome-shell-extension-desktop-icons package resolved the issue.

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/considerations_in_adopting_rhel_8/desktop-and-graphics_considerations-in-adopting-rhel-8

Thanks.

[Sahil_Rangari]

Sahil_Rangari 2 days ago

Hi,

Installing gnome-shell-extension-top-icons package resolved the issue.

Thanks.