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quelea-projection / Quelea

Open source projection software for churches.
https://quelea.org
GNU General Public License v3.0
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Window Layering Issue on Ubuntu #221

Closed HeyITGuyFixIt closed 10 months ago

HeyITGuyFixIt commented 4 years ago

On Ubuntu systems (including derivatives) using the LXDE desktop environment, the output windows for Quelea aren’t layered correctly. From what I have seen, the Video window should be underneath the Projection Window, but that is not the case with LXDE. The Video window is always on top. It seems to put itself on top whenever an item goes live, even when I raise the Projection Window. I have no idea why this happens.

I have seen this happen on two separate machines, one running Ubuntu Studio and the other running Peppermint OS, all of which are based on Ubuntu. I have another machine running Peppermint OS as well, but I had another issue where the Video window was on top of the main screen, with the Presentation Window placed correctly. Sadly, I don't recall how I fixed that problem.

Quelea is up-to-date with version 2019.1.

Any work arounds for this?

Btw, I also posted this on the forum.

berry120 commented 4 years ago

Hmm, I'm afraid I haven't managed to reproduce this in Gnome (don't have LXDE to hand to try quickly) - but I suspect it's a case of the toFront(), toBack() calls in JavaFX probably not working properly on that particular environment.

Unfortunately JavaFX can be a bit flaky in terms of the environments it supports, and since LXDE isn't officially supported, it's possible to run into issues like this.

If you fancy grabbing the cross-platform version and running it with Java 11 to see if that makes a difference, that'd be fab - it may not of course, but if it does then that's another motivation for us to look at migrating at some point.

HeyITGuyFixIt commented 4 years ago

On the forum someone said they are experiencing the same issue using the XFCE environment, which is somewhat related to LXDE. I haven't had a chance to try out what you suggested, but I may soon.

HeyITGuyFixIt commented 4 years ago

When you say Java 11, you mean JDK 11?

HeyITGuyFixIt commented 4 years ago

Assuming you mean JDK 11, I installed that and installed the cross-platform version. I ran it and got this error:

Error: Could not find or load main class org.quelea.windows.main.Main
Caused by: java.lang.NoClassDefFoundError: javafx/application/Application

EDIT: I still get that first line when I run it with the JDK 8, which I already have installed.

HeyITGuyFixIt commented 2 years ago

Had the same issue today while running Quelea 2021.0 on Linux Mint 20 and Cinnamon. Had to run the command wmctrl -r "Projection Window" -b add,above to keep it from happening.

berry120 commented 10 months ago

We no longer use layering with GStreamer, so this shouldn't still be an issue.