<![CDATA[Subwindows and menus broken on Ubuntu 22.04?]]>I had a simple application with a QMainWindow that had a QAction and a menuBar. This worked great on Ubuntu 20.04 (Focal Fossa). I could press the "Menu" label and see the QActions I had added.

After installing Ubuntu 22.04 (Jammy Jellyfish) I can still see the "Manu" label, but nothing happens when I press it. The QAction does still work though! (Ctrl+Q). I also don't seem to be able to show sub-windows, calling a new QMainWindow with a button, for example.

Does anyone know why or has anyone also experienced this? Maybe Qt is fine but there's something with window popups, idk.
Thanks in advance.

]]>https://forum.qt.io/topic/136629/subwindows-and-menus-broken-on-ubuntu-22-04RSS for NodeMon, 06 Apr 2026 16:34:47 GMTThu, 19 May 2022 07:20:23 GMT60<![CDATA[Reply to Subwindows and menus broken on Ubuntu 22.04? on Tue, 07 Jun 2022 13:36:51 GMT]]>I've found out it's just a problem with the second monitor. It works fine on my laptop, but the position of the menu popups is off on the bigger monitor.

This is enough of a solution for me, so I'm marking as solved :)

]]>https://forum.qt.io/post/716744https://forum.qt.io/post/716744Tue, 07 Jun 2022 13:36:51 GMT<![CDATA[Reply to Subwindows and menus broken on Ubuntu 22.04? on Thu, 19 May 2022 19:50:14 GMT]]>Hi and welcome to devnet,

It would help if you can provide a minimal runable script that shows that behaviour.

]]>https://forum.qt.io/post/714777https://forum.qt.io/post/714777Thu, 19 May 2022 19:50:14 GMT<![CDATA[Reply to Subwindows and menus broken on Ubuntu 22.04? on Thu, 19 May 2022 09:02:27 GMT]]>Solved the window problem!
I was just missing a self when declaring it. Now it does show. Still nothing on the menu though.

]]>https://forum.qt.io/post/714698https://forum.qt.io/post/714698Thu, 19 May 2022 09:02:27 GMT